/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 23:00:02,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 23:00:02,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 23:00:02,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 23:00:02,314 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 23:00:02,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 23:00:02,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 23:00:02,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 23:00:02,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 23:00:02,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 23:00:02,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 23:00:02,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 23:00:02,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 23:00:02,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 23:00:02,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 23:00:02,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 23:00:02,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 23:00:02,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 23:00:02,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 23:00:02,353 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 23:00:02,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 23:00:02,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 23:00:02,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 23:00:02,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 23:00:02,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 23:00:02,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 23:00:02,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 23:00:02,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 23:00:02,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 23:00:02,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 23:00:02,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 23:00:02,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 23:00:02,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 23:00:02,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 23:00:02,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 23:00:02,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 23:00:02,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 23:00:02,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 23:00:02,386 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 23:00:02,387 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 23:00:02,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 23:00:02,388 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-13 23:00:02,409 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 23:00:02,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 23:00:02,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 23:00:02,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 23:00:02,411 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 23:00:02,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 23:00:02,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 23:00:02,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 23:00:02,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 23:00:02,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 23:00:02,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 23:00:02,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 23:00:02,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 23:00:02,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 23:00:02,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 23:00:02,413 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 23:00:02,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 23:00:02,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 23:00:02,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:00:02,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 23:00:02,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 23:00:02,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 23:00:02,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 23:00:02,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 23:00:02,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 23:00:02,415 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 23:00:02,415 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 23:00:02,415 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 23:00:02,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 23:00:02,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 23:00:02,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 23:00:02,729 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 23:00:02,729 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 23:00:02,730 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-13 23:00:02,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70dde6e33/22107c2b33084a40b3ebcdb476afeaf0/FLAG6507abd2c [2020-10-13 23:00:03,466 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 23:00:03,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-13 23:00:03,491 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70dde6e33/22107c2b33084a40b3ebcdb476afeaf0/FLAG6507abd2c [2020-10-13 23:00:03,579 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/70dde6e33/22107c2b33084a40b3ebcdb476afeaf0 [2020-10-13 23:00:03,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 23:00:03,592 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 23:00:03,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 23:00:03,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 23:00:03,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 23:00:03,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:00:03" (1/1) ... [2020-10-13 23:00:03,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46034240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:03, skipping insertion in model container [2020-10-13 23:00:03,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:00:03" (1/1) ... [2020-10-13 23:00:03,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 23:00:03,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 23:00:04,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:00:04,743 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 23:00:04,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 23:00:05,071 INFO L208 MainTranslator]: Completed translation [2020-10-13 23:00:05,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:05 WrapperNode [2020-10-13 23:00:05,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 23:00:05,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 23:00:05,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 23:00:05,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 23:00:05,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:05" (1/1) ... [2020-10-13 23:00:05,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:05" (1/1) ... [2020-10-13 23:00:05,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:05" (1/1) ... [2020-10-13 23:00:05,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:05" (1/1) ... [2020-10-13 23:00:05,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:05" (1/1) ... [2020-10-13 23:00:05,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:05" (1/1) ... [2020-10-13 23:00:05,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:05" (1/1) ... [2020-10-13 23:00:05,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 23:00:05,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 23:00:05,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 23:00:05,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 23:00:05,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 23:00:05,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 23:00:05,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 23:00:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2020-10-13 23:00:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure outer_sync [2020-10-13 23:00:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_9 [2020-10-13 23:00:05,402 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-10-13 23:00:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 23:00:05,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 23:00:05,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 23:00:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 23:00:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 23:00:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 23:00:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 23:00:05,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 23:00:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 23:00:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-13 23:00:05,406 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq_wake [2020-10-13 23:00:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_wake [2020-10-13 23:00:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-10-13 23:00:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2020-10-13 23:00:05,407 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-10-13 23:00:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-10-13 23:00:05,408 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-10-13 23:00:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_check_busy [2020-10-13 23:00:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_wait_while_busy [2020-10-13 23:00:05,409 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_time [2020-10-13 23:00:05,410 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_time [2020-10-13 23:00:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_read_alarm [2020-10-13 23:00:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_alarm_irq_enable [2020-10-13 23:00:05,411 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_set_alarm [2020-10-13 23:00:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_proc [2020-10-13 23:00:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_irq_handler [2020-10-13 23:00:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_probe [2020-10-13 23:00:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_remove [2020-10-13 23:00:05,412 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_suspend [2020-10-13 23:00:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_resume [2020-10-13 23:00:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_shutdown [2020-10-13 23:00:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_init [2020-10-13 23:00:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_rtc_exit [2020-10-13 23:00:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-13 23:00:05,413 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-13 23:00:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-13 23:00:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-13 23:00:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_rtc_class_ops_3 [2020-10-13 23:00:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_2 [2020-10-13 23:00:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-13 23:00:05,414 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 23:00:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 23:00:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-13 23:00:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-13 23:00:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_22 [2020-10-13 23:00:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_register_23 [2020-10-13 23:00:05,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_24 [2020-10-13 23:00:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_25 [2020-10-13 23:00:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_26 [2020-10-13 23:00:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_rtc_device_unregister_27 [2020-10-13 23:00:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 23:00:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 23:00:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 23:00:05,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 23:00:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_init [2020-10-13 23:00:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_check [2020-10-13 23:00:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-13 23:00:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-10-13 23:00:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-10-13 23:00:05,417 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 23:00:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 23:00:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 23:00:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_notice [2020-10-13 23:00:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 23:00:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure device_init_wakeup [2020-10-13 23:00:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-13 23:00:05,418 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2020-10-13 23:00:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 23:00:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 23:00:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2020-10-13 23:00:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2020-10-13 23:00:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2020-10-13 23:00:05,419 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-10-13 23:00:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-10-13 23:00:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-10-13 23:00:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-10-13 23:00:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-13 23:00:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_register [2020-10-13 23:00:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_device_unregister [2020-10-13 23:00:05,420 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_time_to_tm [2020-10-13 23:00:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_tm_to_time [2020-10-13 23:00:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_update_irq [2020-10-13 23:00:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure rtc_valid_tm [2020-10-13 23:00:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2020-10-13 23:00:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_ioremap [2020-10-13 23:00:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure tegra_iounmap [2020-10-13 23:00:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 23:00:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 23:00:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 23:00:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 23:00:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 23:00:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 23:00:05,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 23:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure outer_sync [2020-10-13 23:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2020-10-13 23:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 23:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 23:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 23:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 23:00:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 23:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_9 [2020-10-13 23:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 23:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_check [2020-10-13 23:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 23:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-10-13 23:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_22 [2020-10-13 23:00:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 23:00:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 23:00:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 23:00:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 23:00:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 23:00:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 23:00:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 23:00:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 23:00:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 23:00:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 23:00:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 23:00:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 23:00:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 23:00:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 23:00:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-13 23:00:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-13 23:00:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-13 23:00:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-13 23:00:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_rtc_class_ops_3 [2020-10-13 23:00:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_2 [2020-10-13 23:00:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-13 23:00:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_ioremap [2020-10-13 23:00:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_iounmap [2020-10-13 23:00:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-13 23:00:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-13 23:00:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-13 23:00:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_24 [2020-10-13 23:00:05,428 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-13 23:00:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_26 [2020-10-13 23:00:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2020-10-13 23:00:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq_wake [2020-10-13 23:00:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_wake [2020-10-13 23:00:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_valid_tm [2020-10-13 23:00:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_tm_to_time [2020-10-13 23:00:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_time_to_tm [2020-10-13 23:00:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-10-13 23:00:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 23:00:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-10-13 23:00:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-10-13 23:00:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2020-10-13 23:00:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure device_init_wakeup [2020-10-13 23:00:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-10-13 23:00:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 23:00:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 23:00:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 23:00:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure dev_notice [2020-10-13 23:00:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2020-10-13 23:00:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-13 23:00:05,431 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-13 23:00:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_register [2020-10-13 23:00:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_register_23 [2020-10-13 23:00:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_device_unregister [2020-10-13 23:00:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_25 [2020-10-13 23:00:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_rtc_device_unregister_27 [2020-10-13 23:00:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure rtc_update_irq [2020-10-13 23:00:05,432 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-10-13 23:00:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-10-13 23:00:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-10-13 23:00:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-10-13 23:00:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-10-13 23:00:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-10-13 23:00:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_check_busy [2020-10-13 23:00:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_wait_while_busy [2020-10-13 23:00:05,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 23:00:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_time [2020-10-13 23:00:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_time [2020-10-13 23:00:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 23:00:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 23:00:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_read_alarm [2020-10-13 23:00:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_alarm_irq_enable [2020-10-13 23:00:05,434 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_set_alarm [2020-10-13 23:00:05,435 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_proc [2020-10-13 23:00:05,435 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_irq_handler [2020-10-13 23:00:05,435 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_probe [2020-10-13 23:00:05,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 23:00:05,435 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_remove [2020-10-13 23:00:05,435 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_suspend [2020-10-13 23:00:05,435 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_resume [2020-10-13 23:00:05,435 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_shutdown [2020-10-13 23:00:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_init [2020-10-13 23:00:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure tegra_rtc_exit [2020-10-13 23:00:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 23:00:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 23:00:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2020-10-13 23:00:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2020-10-13 23:00:05,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2020-10-13 23:00:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 23:00:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 23:00:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 23:00:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 23:00:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_init [2020-10-13 23:00:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 23:00:05,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 23:00:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 23:00:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 23:00:05,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 23:00:06,049 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 23:00:10,054 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 23:00:10,054 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 23:00:10,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:00:10 BoogieIcfgContainer [2020-10-13 23:00:10,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 23:00:10,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 23:00:10,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 23:00:10,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 23:00:10,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:00:03" (1/3) ... [2020-10-13 23:00:10,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577d4bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:00:10, skipping insertion in model container [2020-10-13 23:00:10,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:05" (2/3) ... [2020-10-13 23:00:10,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577d4bf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:00:10, skipping insertion in model container [2020-10-13 23:00:10,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:00:10" (3/3) ... [2020-10-13 23:00:10,085 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-9ec4f65-1-110_1a-drivers--rtc--rtc-tegra.ko-entry_point.cil.out.i [2020-10-13 23:00:10,097 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 23:00:10,111 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 23:00:10,126 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 23:00:10,162 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 23:00:10,163 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 23:00:10,163 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 23:00:10,163 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 23:00:10,163 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 23:00:10,163 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 23:00:10,164 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 23:00:10,164 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 23:00:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states. [2020-10-13 23:00:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-13 23:00:10,248 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:00:10,249 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:00:10,250 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:00:10,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:00:10,256 INFO L82 PathProgramCache]: Analyzing trace with hash 729429547, now seen corresponding path program 1 times [2020-10-13 23:00:10,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:00:10,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [879991126] [2020-10-13 23:00:10,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:00:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:10,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:10,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:10,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:11,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:11,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 23:00:11,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:00:11,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1361 [2020-10-13 23:00:11,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:11,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:00:11,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 23:00:11,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 23:00:11,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 23:00:12,356 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:00:12,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:00:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:12,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:12,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:12,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:00:12,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:12,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 23:00:12,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:12,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:12,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:12,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:00:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:12,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:12,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:12,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:12,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:12,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:00:12,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:12,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 23:00:12,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:00:12,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:12,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:12,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:12,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:00:12,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:12,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:00:12,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:12,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 23:00:12,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:00:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:12,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:12,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:12,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:12,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:12,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 23:00:12,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:12,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 23:00:12,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:00:12,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:00:12,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:12,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 23:00:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:12,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:12,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:12,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:00:12,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:12,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:00:12,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:00:12,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:12,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:12,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:12,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:12,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:12,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:12,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:12,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:00:12,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:12,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:12,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:12,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:12,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:12,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:00:12,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [879991126] [2020-10-13 23:00:12,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:00:12,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 23:00:12,641 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853687807] [2020-10-13 23:00:12,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 23:00:12,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:00:12,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 23:00:12,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-13 23:00:12,665 INFO L87 Difference]: Start difference. First operand 646 states. Second operand 8 states. [2020-10-13 23:00:13,000 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:00:13,540 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 23:00:13,835 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 23:00:19,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:00:19,667 INFO L93 Difference]: Finished difference Result 1138 states and 1551 transitions. [2020-10-13 23:00:19,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 23:00:19,669 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2020-10-13 23:00:19,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:00:19,691 INFO L225 Difference]: With dead ends: 1138 [2020-10-13 23:00:19,691 INFO L226 Difference]: Without dead ends: 616 [2020-10-13 23:00:19,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-13 23:00:19,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2020-10-13 23:00:19,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 480. [2020-10-13 23:00:19,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2020-10-13 23:00:19,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 604 transitions. [2020-10-13 23:00:19,861 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 604 transitions. Word has length 49 [2020-10-13 23:00:19,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:00:19,862 INFO L479 AbstractCegarLoop]: Abstraction has 480 states and 604 transitions. [2020-10-13 23:00:19,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 23:00:19,862 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 604 transitions. [2020-10-13 23:00:19,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-13 23:00:19,866 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:00:19,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:00:19,867 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 23:00:19,867 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:00:19,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:00:19,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1624091025, now seen corresponding path program 1 times [2020-10-13 23:00:19,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:00:19,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009380270] [2020-10-13 23:00:19,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:00:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:19,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:19,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:20,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:20,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:20,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 23:00:20,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:00:20,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 923 [2020-10-13 23:00:20,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:00:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 23:00:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 23:00:20,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:21,137 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:00:21,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:00:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:21,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:21,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:21,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:00:21,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:21,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 23:00:21,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:21,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:00:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:21,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:21,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:21,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:21,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:21,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:00:21,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:21,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:21,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:21,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:21,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:21,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:00:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:21,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:21,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:21,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:00:21,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:21,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:00:21,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:21,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:21,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:21,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:00:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:21,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:21,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:21,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 23:00:21,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:21,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 23:00:21,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:21,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:00:21,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:00:21,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 23:00:21,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:21,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 23:00:21,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:21,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:21,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:21,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:00:21,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:21,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:00:21,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:21,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:21,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:00:21,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:21,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:21,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:21,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:21,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:21,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:21,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:21,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:00:21,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:21,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:21,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:21,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:21,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:21,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 23:00:21,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009380270] [2020-10-13 23:00:21,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:00:21,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-13 23:00:21,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434392382] [2020-10-13 23:00:21,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 23:00:21,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:00:21,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 23:00:21,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-13 23:00:21,354 INFO L87 Difference]: Start difference. First operand 480 states and 604 transitions. Second operand 9 states. [2020-10-13 23:00:21,715 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:00:22,161 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 23:00:22,430 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 23:00:22,684 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-13 23:00:26,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:00:26,796 INFO L93 Difference]: Finished difference Result 1082 states and 1406 transitions. [2020-10-13 23:00:26,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 23:00:26,796 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-10-13 23:00:26,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:00:26,813 INFO L225 Difference]: With dead ends: 1082 [2020-10-13 23:00:26,814 INFO L226 Difference]: Without dead ends: 617 [2020-10-13 23:00:26,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-13 23:00:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-10-13 23:00:26,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 481. [2020-10-13 23:00:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 23:00:26,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 605 transitions. [2020-10-13 23:00:26,912 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 605 transitions. Word has length 50 [2020-10-13 23:00:26,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:00:26,913 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 605 transitions. [2020-10-13 23:00:26,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 23:00:26,913 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 605 transitions. [2020-10-13 23:00:26,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-13 23:00:26,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:00:26,916 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:00:26,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 23:00:26,916 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:00:26,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:00:26,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1763162224, now seen corresponding path program 1 times [2020-10-13 23:00:26,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:00:26,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870449804] [2020-10-13 23:00:26,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:00:26,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:26,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:27,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:27,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:27,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:27,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-13 23:00:27,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:00:27,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 744 [2020-10-13 23:00:27,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:27,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:27,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 23:00:27,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:00:27,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:28,011 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:00:28,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:00:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:28,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:28,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:28,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:00:28,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:28,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 23:00:28,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:28,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:28,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:28,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:28,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:28,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:00:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:28,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:28,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:28,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:28,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:28,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:00:28,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:28,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:28,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:28,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:28,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:28,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:00:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:28,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:28,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:28,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:00:28,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:28,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:00:28,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:28,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:28,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:28,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:28,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:28,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:00:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:28,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:28,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:28,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:28,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 23:00:28,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:00:28,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 23:00:28,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:28,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:28,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:28,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 23:00:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:28,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:28,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:28,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:00:28,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:28,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 23:00:28,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:00:28,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:28,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:28,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:28,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:28,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:28,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:28,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:28,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:00:28,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:28,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:28,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:28,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:28,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:28,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 23:00:28,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870449804] [2020-10-13 23:00:28,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:00:28,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 23:00:28,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486469903] [2020-10-13 23:00:28,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 23:00:28,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:00:28,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 23:00:28,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:00:28,233 INFO L87 Difference]: Start difference. First operand 481 states and 605 transitions. Second operand 7 states. [2020-10-13 23:00:28,498 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:00:28,823 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 23:00:29,210 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 23:00:32,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:00:32,512 INFO L93 Difference]: Finished difference Result 938 states and 1197 transitions. [2020-10-13 23:00:32,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 23:00:32,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2020-10-13 23:00:32,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:00:32,518 INFO L225 Difference]: With dead ends: 938 [2020-10-13 23:00:32,518 INFO L226 Difference]: Without dead ends: 476 [2020-10-13 23:00:32,520 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-13 23:00:32,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-10-13 23:00:32,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 351. [2020-10-13 23:00:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 351 states. [2020-10-13 23:00:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 426 transitions. [2020-10-13 23:00:32,589 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 426 transitions. Word has length 50 [2020-10-13 23:00:32,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:00:32,590 INFO L479 AbstractCegarLoop]: Abstraction has 351 states and 426 transitions. [2020-10-13 23:00:32,590 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 23:00:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 426 transitions. [2020-10-13 23:00:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-13 23:00:32,592 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:00:32,593 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] [2020-10-13 23:00:32,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 23:00:32,593 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:00:32,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:00:32,594 INFO L82 PathProgramCache]: Analyzing trace with hash 158971772, now seen corresponding path program 1 times [2020-10-13 23:00:32,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:00:32,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519462933] [2020-10-13 23:00:32,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:00:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:32,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:32,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:32,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:33,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:33,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 23:00:33,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:00:33,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 952 [2020-10-13 23:00:33,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:33,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:00:33,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 23:00:33,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:00:33,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:33,868 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:00:33,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:00:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:33,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:33,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:33,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:00:33,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:33,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 23:00:33,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:33,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:33,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:33,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:33,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:33,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:00:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:33,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:33,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:33,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:33,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:33,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:00:33,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:33,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:33,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:33,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:33,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:33,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:00:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:33,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:33,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:33,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:00:33,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:33,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:00:33,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:33,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:33,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:33,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:33,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:33,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:00:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:33,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:34,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:34,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 23:00:34,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 23:00:34,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:00:34,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:00:34,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 23:00:34,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:34,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 23:00:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:34,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:34,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:34,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:00:34,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:34,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:00:34,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:34,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:34,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:00:34,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:34,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:34,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:34,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:34,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:34,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:34,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:34,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:00:34,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:34,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:34,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:34,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 23:00:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:34,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:34,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:34,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:00:34,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:34,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 23:00:34,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:34,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:00:34,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:34,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:34,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:34,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:34,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:34,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:00:34,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:34,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:00:34,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:34,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:34,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:34,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:34,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:34,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:34,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:34,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:34,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:34,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:34,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 23:00:34,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:34,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:34,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:34,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:34,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:34,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:00:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:34,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:34,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:34,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:00:34,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:34,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:00:34,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:34,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:34,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:34,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:34,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:34,286 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 23:00:34,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519462933] [2020-10-13 23:00:34,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:00:34,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 23:00:34,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101082893] [2020-10-13 23:00:34,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 23:00:34,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:00:34,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 23:00:34,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-10-13 23:00:34,290 INFO L87 Difference]: Start difference. First operand 351 states and 426 transitions. Second operand 10 states. [2020-10-13 23:00:34,537 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:00:35,123 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 23:00:35,418 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 23:00:35,736 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 23:00:35,995 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-13 23:00:39,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:00:39,953 INFO L93 Difference]: Finished difference Result 804 states and 1011 transitions. [2020-10-13 23:00:39,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 23:00:39,954 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2020-10-13 23:00:39,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:00:39,959 INFO L225 Difference]: With dead ends: 804 [2020-10-13 23:00:39,959 INFO L226 Difference]: Without dead ends: 469 [2020-10-13 23:00:39,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-10-13 23:00:39,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-10-13 23:00:40,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 352. [2020-10-13 23:00:40,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2020-10-13 23:00:40,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 427 transitions. [2020-10-13 23:00:40,030 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 427 transitions. Word has length 72 [2020-10-13 23:00:40,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:00:40,030 INFO L479 AbstractCegarLoop]: Abstraction has 352 states and 427 transitions. [2020-10-13 23:00:40,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 23:00:40,030 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 427 transitions. [2020-10-13 23:00:40,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-13 23:00:40,032 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:00:40,033 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:00:40,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 23:00:40,033 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:00:40,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:00:40,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1795192735, now seen corresponding path program 1 times [2020-10-13 23:00:40,034 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:00:40,034 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [118591105] [2020-10-13 23:00:40,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:00:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:40,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:40,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:40,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:45,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:45,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-13 23:00:45,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 23:00:45,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-13 23:00:45,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:45,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 23:00:45,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-13 23:00:45,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 23:00:45,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:45,379 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:00:45,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:00:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:45,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:45,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:45,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:00:45,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:45,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 23:00:45,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:45,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:45,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:45,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:00:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:45,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:45,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:45,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:45,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:45,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:00:45,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:45,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:45,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:45,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:00:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:45,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:45,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:45,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:00:45,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:45,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:00:45,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:45,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:45,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:45,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:00:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:45,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:45,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:45,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 23:00:45,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:45,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 23:00:45,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:45,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 23:00:45,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 23:00:45,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 23:00:45,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:45,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 23:00:45,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:45,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:45,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:45,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:00:45,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:45,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:00:45,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:45,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:00:45,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:45,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:45,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:45,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:45,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:45,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:45,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:45,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:00:45,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:45,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:45,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:45,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:45,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:45,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 23:00:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:45,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:45,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:45,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:00:45,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:45,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:00:45,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:45,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:45,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:00:45,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:45,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:45,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:45,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:45,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:45,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:00:45,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:45,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:00:45,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:45,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:45,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:45,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:45,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:45,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:45,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:45,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:45,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:00:45,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:45,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:45,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:45,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:00:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:45,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:45,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:45,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:00:45,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:45,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:00:45,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:45,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:45,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:45,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:45,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:45,674 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-13 23:00:45,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [118591105] [2020-10-13 23:00:45,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:00:45,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 23:00:45,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195761211] [2020-10-13 23:00:45,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 23:00:45,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:00:45,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 23:00:45,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-10-13 23:00:45,676 INFO L87 Difference]: Start difference. First operand 352 states and 427 transitions. Second operand 11 states. [2020-10-13 23:00:45,933 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:00:46,429 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 23:00:46,679 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 23:00:46,934 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 23:00:47,200 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 23:00:47,468 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-10-13 23:00:50,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:00:50,949 INFO L93 Difference]: Finished difference Result 805 states and 1012 transitions. [2020-10-13 23:00:50,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 23:00:50,950 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 75 [2020-10-13 23:00:50,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:00:50,954 INFO L225 Difference]: With dead ends: 805 [2020-10-13 23:00:50,954 INFO L226 Difference]: Without dead ends: 470 [2020-10-13 23:00:50,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-10-13 23:00:50,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-13 23:00:51,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 353. [2020-10-13 23:00:51,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-10-13 23:00:51,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 428 transitions. [2020-10-13 23:00:51,017 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 428 transitions. Word has length 75 [2020-10-13 23:00:51,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:00:51,017 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 428 transitions. [2020-10-13 23:00:51,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 23:00:51,018 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 428 transitions. [2020-10-13 23:00:51,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-13 23:00:51,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:00:51,020 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:00:51,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 23:00:51,020 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:00:51,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:00:51,021 INFO L82 PathProgramCache]: Analyzing trace with hash 962979911, now seen corresponding path program 2 times [2020-10-13 23:00:51,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:00:51,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250500906] [2020-10-13 23:00:51,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:00:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:51,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:51,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:52,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:52,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 23:00:52,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:00:52,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1062 [2020-10-13 23:00:52,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 23:00:52,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:00:52,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 23:00:52,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:52,426 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:00:52,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:00:52,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:52,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:52,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:52,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:00:52,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:52,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 23:00:52,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:52,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:52,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:52,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:00:52,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:52,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:00:52,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:52,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:52,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:52,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:52,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:52,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:00:52,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:52,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:52,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:00:52,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:52,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:00:52,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:52,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:52,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:52,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:00:52,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:52,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:00:52,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:52,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:52,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 23:00:52,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:52,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:00:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:52,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:52,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:52,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:00:52,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:52,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 23:00:52,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:52,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:00:52,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:52,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 23:00:52,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:00:52,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 23:00:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:52,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:52,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:52,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:00:52,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:52,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:00:52,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:52,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:52,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:00:52,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:52,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:52,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:52,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:52,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:52,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:52,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:52,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:00:52,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:52,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:52,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:52,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 23:00:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:52,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:52,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:52,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:00:52,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:52,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:00:52,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:52,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:52,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:00:52,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:52,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:52,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:52,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:52,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:52,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:52,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:00:52,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:52,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:00:52,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:52,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:52,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:52,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:52,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:52,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:00:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:52,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:52,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:52,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:00:52,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:52,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:00:52,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:52,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:52,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:52,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:00:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:00:52,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:00:52,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:00:52,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:00:52,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:00:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:00:52,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:00:52,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:00:52,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:00:52,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:00:52,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:00:52,737 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 23:00:52,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250500906] [2020-10-13 23:00:52,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:00:52,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 23:00:52,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020845927] [2020-10-13 23:00:52,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 23:00:52,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:00:52,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 23:00:52,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 23:00:52,740 INFO L87 Difference]: Start difference. First operand 353 states and 428 transitions. Second operand 9 states. [2020-10-13 23:00:53,009 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:00:53,331 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 23:00:53,645 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 23:00:54,170 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:00:54,474 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-13 23:00:54,866 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 23:00:55,716 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:01:02,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:01:02,497 INFO L93 Difference]: Finished difference Result 1253 states and 1604 transitions. [2020-10-13 23:01:02,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 23:01:02,499 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2020-10-13 23:01:02,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:01:02,504 INFO L225 Difference]: With dead ends: 1253 [2020-10-13 23:01:02,504 INFO L226 Difference]: Without dead ends: 921 [2020-10-13 23:01:02,506 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2020-10-13 23:01:02,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-10-13 23:01:02,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 706. [2020-10-13 23:01:02,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-10-13 23:01:02,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 870 transitions. [2020-10-13 23:01:02,615 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 870 transitions. Word has length 76 [2020-10-13 23:01:02,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:01:02,615 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 870 transitions. [2020-10-13 23:01:02,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 23:01:02,615 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 870 transitions. [2020-10-13 23:01:02,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-13 23:01:02,617 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:01:02,618 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:01:02,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 23:01:02,618 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:01:02,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:01:02,618 INFO L82 PathProgramCache]: Analyzing trace with hash 750580412, now seen corresponding path program 2 times [2020-10-13 23:01:02,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:01:02,619 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1299864634] [2020-10-13 23:01:02,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:01:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:02,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:02,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:02,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:02,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 23:01:02,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:01:02,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-13 23:01:02,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:02,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:02,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-13 23:01:02,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 23:01:02,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:03,177 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:01:03,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:01:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:03,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:03,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:03,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:03,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:03,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 23:01:03,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:03,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:03,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:03,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:03,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:03,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:01:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:03,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:03,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:03,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:03,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:03,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:01:03,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:03,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:03,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:03,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:03,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:03,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:03,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:01:03,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:03,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:01:03,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:03,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:03,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:03,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:03,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:01:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:03,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:03,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:03,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:01:03,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:01:03,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:03,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:03,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:03,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:03,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:03,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 23:01:03,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:03,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:03,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:03,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:03,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:03,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:01:03,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:03,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:03,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:01:03,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:03,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:03,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:03,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:03,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:03,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:03,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:03,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:01:03,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:03,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:03,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:03,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-13 23:01:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:03,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:03,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:03,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:01:03,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:03,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 23:01:03,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:03,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:03,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:01:03,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:03,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:03,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:03,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:03,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:03,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:03,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:03,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:01:03,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:03,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:03,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:03,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:03,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:03,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:03,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:03,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:03,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:03,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:03,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:03,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:03,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:03,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:03,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:03,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:03,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:03,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:03,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:03,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:01:03,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:03,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:03,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:03,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:03,398 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 23:01:03,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1299864634] [2020-10-13 23:01:03,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:01:03,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 23:01:03,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331547147] [2020-10-13 23:01:03,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 23:01:03,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:01:03,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 23:01:03,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 23:01:03,400 INFO L87 Difference]: Start difference. First operand 706 states and 870 transitions. Second operand 7 states. [2020-10-13 23:01:03,638 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:01:03,911 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 23:01:04,156 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 23:01:08,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:01:08,080 INFO L93 Difference]: Finished difference Result 1945 states and 2471 transitions. [2020-10-13 23:01:08,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 23:01:08,080 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2020-10-13 23:01:08,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:01:08,088 INFO L225 Difference]: With dead ends: 1945 [2020-10-13 23:01:08,088 INFO L226 Difference]: Without dead ends: 1260 [2020-10-13 23:01:08,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 23:01:08,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1260 states. [2020-10-13 23:01:08,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1260 to 983. [2020-10-13 23:01:08,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 983 states. [2020-10-13 23:01:08,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1210 transitions. [2020-10-13 23:01:08,261 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1210 transitions. Word has length 74 [2020-10-13 23:01:08,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:01:08,261 INFO L479 AbstractCegarLoop]: Abstraction has 983 states and 1210 transitions. [2020-10-13 23:01:08,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 23:01:08,261 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1210 transitions. [2020-10-13 23:01:08,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 23:01:08,263 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:01:08,263 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:01:08,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 23:01:08,264 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:01:08,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:01:08,264 INFO L82 PathProgramCache]: Analyzing trace with hash -2102416043, now seen corresponding path program 1 times [2020-10-13 23:01:08,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:01:08,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718242327] [2020-10-13 23:01:08,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:01:08,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:08,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:08,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:08,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:08,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-13 23:01:08,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:01:08,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 550 [2020-10-13 23:01:08,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:08,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 23:01:08,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:01:08,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 23:01:08,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:09,122 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:01:09,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:01:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:09,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:09,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:09,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:09,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:09,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 23:01:09,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:09,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:09,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:09,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:01:09,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:09,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:01:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:09,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:09,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:09,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:09,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:09,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:01:09,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:09,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:09,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:09,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:01:09,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:09,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:09,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:09,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:09,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:09,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:01:09,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:09,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:01:09,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:09,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 23:01:09,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:09,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:01:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:09,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:09,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:09,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:01:09,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:09,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 23:01:09,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:09,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:09,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 23:01:09,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:09,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 23:01:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:09,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:09,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:09,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:09,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:09,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:01:09,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:01:09,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:09,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:09,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:09,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:09,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:09,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:09,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:09,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:09,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:09,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:09,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:09,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:09,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:09,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 23:01:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:09,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:09,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:09,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:01:09,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:09,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 23:01:09,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:09,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:09,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:01:09,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:09,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:09,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:09,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:09,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:09,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:09,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:09,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:01:09,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:09,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:09,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:09,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:09,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:09,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:09,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:09,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:09,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:09,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:09,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:09,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:09,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:09,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:09,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:09,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:09,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:09,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:09,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:09,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:09,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:09,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:09,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:09,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:09,398 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 23:01:09,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718242327] [2020-10-13 23:01:09,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:01:09,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 23:01:09,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260963431] [2020-10-13 23:01:09,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 23:01:09,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:01:09,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 23:01:09,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 23:01:09,401 INFO L87 Difference]: Start difference. First operand 983 states and 1210 transitions. Second operand 9 states. [2020-10-13 23:01:09,646 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:01:09,996 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 23:01:10,295 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 23:01:10,858 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:01:11,139 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:01:11,416 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:01:15,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:01:15,108 INFO L93 Difference]: Finished difference Result 2233 states and 2836 transitions. [2020-10-13 23:01:15,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 23:01:15,109 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-10-13 23:01:15,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:01:15,118 INFO L225 Difference]: With dead ends: 2233 [2020-10-13 23:01:15,118 INFO L226 Difference]: Without dead ends: 1285 [2020-10-13 23:01:15,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-13 23:01:15,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2020-10-13 23:01:15,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 991. [2020-10-13 23:01:15,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2020-10-13 23:01:15,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1212 transitions. [2020-10-13 23:01:15,335 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1212 transitions. Word has length 77 [2020-10-13 23:01:15,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:01:15,336 INFO L479 AbstractCegarLoop]: Abstraction has 991 states and 1212 transitions. [2020-10-13 23:01:15,336 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 23:01:15,336 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1212 transitions. [2020-10-13 23:01:15,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-10-13 23:01:15,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:01:15,339 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:01:15,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 23:01:15,339 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:01:15,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:01:15,339 INFO L82 PathProgramCache]: Analyzing trace with hash 926274340, now seen corresponding path program 1 times [2020-10-13 23:01:15,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:01:15,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642664462] [2020-10-13 23:01:15,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:01:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:15,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:15,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:16,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:16,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 23:01:16,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:01:16,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 714 [2020-10-13 23:01:16,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:16,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 23:01:16,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:01:16,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-13 23:01:16,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:16,361 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:01:16,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:01:16,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:16,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:16,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:16,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:16,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:16,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 23:01:16,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:01:16,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:16,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:01:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:16,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:16,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:16,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:16,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:16,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:01:16,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:16,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:16,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:16,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:01:16,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:16,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:16,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:16,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:16,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:01:16,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:16,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:01:16,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:16,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:16,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:16,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 23:01:16,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:16,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:01:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:16,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:16,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:16,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:01:16,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:16,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 23:01:16,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:16,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:16,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:16,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 23:01:16,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:16,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 23:01:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:16,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:16,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:16,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:16,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:16,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:01:16,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:16,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:16,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:01:16,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:16,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:16,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:16,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:16,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:16,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:16,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:16,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:16,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:01:16,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:16,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:16,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:16,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:16,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:16,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-13 23:01:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:16,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:16,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:16,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:01:16,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:16,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 23:01:16,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:01:16,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:16,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:16,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:16,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:16,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:16,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:16,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:16,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:01:16,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:16,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:16,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:16,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:16,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:16,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:16,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:16,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:16,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:16,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:16,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:16,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:16,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:16,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:16,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:16,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:16,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:16,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:16,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:16,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:16,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:16,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:16,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:16,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:16,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:16,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:16,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:16,734 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 23:01:16,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642664462] [2020-10-13 23:01:16,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:01:16,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 23:01:16,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730977026] [2020-10-13 23:01:16,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 23:01:16,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:01:16,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 23:01:16,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 23:01:16,736 INFO L87 Difference]: Start difference. First operand 991 states and 1212 transitions. Second operand 9 states. [2020-10-13 23:01:16,979 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:01:17,332 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 23:01:17,645 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 23:01:18,205 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:01:18,473 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:01:18,766 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:01:23,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:01:23,793 INFO L93 Difference]: Finished difference Result 2245 states and 2824 transitions. [2020-10-13 23:01:23,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 23:01:23,793 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-10-13 23:01:23,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:01:23,801 INFO L225 Difference]: With dead ends: 2245 [2020-10-13 23:01:23,801 INFO L226 Difference]: Without dead ends: 1289 [2020-10-13 23:01:23,805 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 [2020-10-13 23:01:23,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2020-10-13 23:01:23,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 999. [2020-10-13 23:01:23,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 999 states. [2020-10-13 23:01:23,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1214 transitions. [2020-10-13 23:01:23,987 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1214 transitions. Word has length 78 [2020-10-13 23:01:23,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:01:23,988 INFO L479 AbstractCegarLoop]: Abstraction has 999 states and 1214 transitions. [2020-10-13 23:01:23,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 23:01:23,988 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1214 transitions. [2020-10-13 23:01:23,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 23:01:23,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:01:23,990 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:01:23,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 23:01:23,991 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:01:23,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:01:23,991 INFO L82 PathProgramCache]: Analyzing trace with hash -401887150, now seen corresponding path program 1 times [2020-10-13 23:01:23,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:01:23,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127602950] [2020-10-13 23:01:23,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:01:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:24,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:24,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:24,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:24,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-13 23:01:24,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 23:01:24,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 630 [2020-10-13 23:01:24,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:24,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 23:01:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 23:01:24,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 23:01:24,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:25,003 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:01:25,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:01:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:25,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:25,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:25,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:25,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:25,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 23:01:25,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:25,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:25,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:25,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 23:01:25,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:25,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:01:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:25,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:25,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:25,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:25,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:25,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 23:01:25,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:25,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:25,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:01:25,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:25,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:25,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:25,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:25,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:01:25,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:25,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:01:25,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:25,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:25,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:25,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 23:01:25,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:25,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:01:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:25,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:25,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:25,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:01:25,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:25,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 23:01:25,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:25,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:01:25,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:25,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 23:01:25,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:25,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-13 23:01:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:25,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:25,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:25,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:25,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:25,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:01:25,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:25,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:25,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:01:25,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:25,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:25,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:25,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:25,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:25,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:25,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:25,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:01:25,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:25,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:25,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:25,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 23:01:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:25,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:25,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:25,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:01:25,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:25,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 23:01:25,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:25,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:25,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:01:25,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:25,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:25,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:25,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:25,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:25,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:25,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:25,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:25,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:01:25,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:25,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:25,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:25,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:25,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:25,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:25,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:25,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:25,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:25,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:01:25,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:25,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:25,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:25,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:25,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:25,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:25,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:25,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:25,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:25,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:25,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:01:25,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:25,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:25,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:25,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:25,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:01:25,381 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 23:01:25,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127602950] [2020-10-13 23:01:25,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:01:25,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 23:01:25,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386253958] [2020-10-13 23:01:25,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 23:01:25,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:01:25,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 23:01:25,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-13 23:01:25,387 INFO L87 Difference]: Start difference. First operand 999 states and 1214 transitions. Second operand 9 states. [2020-10-13 23:01:25,758 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:01:26,209 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 23:01:26,494 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 23:01:26,938 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:01:27,237 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:01:27,531 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:01:30,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:01:30,433 INFO L93 Difference]: Finished difference Result 2089 states and 2597 transitions. [2020-10-13 23:01:30,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 23:01:30,434 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-10-13 23:01:30,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:01:30,441 INFO L225 Difference]: With dead ends: 2089 [2020-10-13 23:01:30,441 INFO L226 Difference]: Without dead ends: 1125 [2020-10-13 23:01:30,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2020-10-13 23:01:30,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2020-10-13 23:01:30,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 966. [2020-10-13 23:01:30,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 966 states. [2020-10-13 23:01:30,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1180 transitions. [2020-10-13 23:01:30,648 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1180 transitions. Word has length 79 [2020-10-13 23:01:30,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:01:30,648 INFO L479 AbstractCegarLoop]: Abstraction has 966 states and 1180 transitions. [2020-10-13 23:01:30,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 23:01:30,649 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1180 transitions. [2020-10-13 23:01:30,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 23:01:30,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:01:30,652 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:01:30,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 23:01:30,653 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:01:30,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:01:30,653 INFO L82 PathProgramCache]: Analyzing trace with hash -2147426517, now seen corresponding path program 1 times [2020-10-13 23:01:30,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:01:30,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426355245] [2020-10-13 23:01:30,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:01:30,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:30,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:30,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:31,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:31,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:32,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:32,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 23:01:32,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:01:32,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1985 [2020-10-13 23:01:32,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:32,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 23:01:32,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-13 23:01:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 23:01:32,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:32,984 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:01:32,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:01:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:32,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:33,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:01:33,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:33,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:33,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:33,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:33,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:01:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:33,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:33,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:33,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:33,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:33,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:01:33,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:01:33,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:33,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:33,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:33,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:33,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:01:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:01:33,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:01:33,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:33,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:33,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:33,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 23:01:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 23:01:33,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 23:01:33,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:01:33,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:33,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 23:01:33,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:33,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 23:01:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 23:01:33,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:01:33,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:01:33,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:33,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:01:33,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-13 23:01:33,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 23:01:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:33,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:01:33,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:33,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:01:33,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:33,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:33,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:33,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:33,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:01:33,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:33,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:33,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:33,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 23:01:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:01:33,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:01:33,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:33,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:01:33,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:33,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:33,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:33,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:01:33,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:33,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:33,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:33,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:33,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:33,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:33,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:33,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:33,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:33,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:33,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:33,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:33,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:33,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:33,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:33,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:33,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:33,310 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 23:01:33,310 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426355245] [2020-10-13 23:01:33,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:01:33,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 23:01:33,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070082654] [2020-10-13 23:01:33,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 23:01:33,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:01:33,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 23:01:33,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-13 23:01:33,312 INFO L87 Difference]: Start difference. First operand 966 states and 1180 transitions. Second operand 13 states. [2020-10-13 23:01:33,564 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:01:33,937 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 23:01:34,250 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 23:01:34,710 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:01:35,024 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-13 23:01:35,401 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-13 23:01:35,692 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:01:36,009 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-13 23:01:36,311 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 23:01:36,857 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:01:37,183 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:01:37,604 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 23:01:43,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:01:43,288 INFO L93 Difference]: Finished difference Result 2527 states and 3141 transitions. [2020-10-13 23:01:43,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 23:01:43,289 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 91 [2020-10-13 23:01:43,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:01:43,298 INFO L225 Difference]: With dead ends: 2527 [2020-10-13 23:01:43,298 INFO L226 Difference]: Without dead ends: 1603 [2020-10-13 23:01:43,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=286, Invalid=644, Unknown=0, NotChecked=0, Total=930 [2020-10-13 23:01:43,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1603 states. [2020-10-13 23:01:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1603 to 1257. [2020-10-13 23:01:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1257 states. [2020-10-13 23:01:43,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1515 transitions. [2020-10-13 23:01:43,557 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1515 transitions. Word has length 91 [2020-10-13 23:01:43,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:01:43,558 INFO L479 AbstractCegarLoop]: Abstraction has 1257 states and 1515 transitions. [2020-10-13 23:01:43,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 23:01:43,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1515 transitions. [2020-10-13 23:01:43,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-13 23:01:43,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:01:43,562 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:01:43,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 23:01:43,562 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:01:43,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:01:43,562 INFO L82 PathProgramCache]: Analyzing trace with hash -88621768, now seen corresponding path program 1 times [2020-10-13 23:01:43,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:01:43,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1990199150] [2020-10-13 23:01:43,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:01:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:43,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:43,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:43,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:44,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 23:01:46,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:01:46,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2397 [2020-10-13 23:01:46,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 23:01:46,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-13 23:01:46,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 23:01:46,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,297 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:01:46,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:01:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:46,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 23:01:46,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:46,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:46,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:46,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:01:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:46,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:46,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:46,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:46,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:46,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:01:46,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:01:46,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:46,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:46,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:46,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:01:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:01:46,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 23:01:46,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:46,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:46,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:46,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 23:01:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 23:01:46,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 23:01:46,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:01:46,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:46,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 23:01:46,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 23:01:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 23:01:46,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 23:01:46,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:01:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:01:46,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 23:01:46,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:46,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:01:46,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:01:46,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:46,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:46,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:01:46,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:46,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:46,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:46,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 23:01:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:01:46,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:01:46,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:46,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:01:46,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:46,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:46,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:01:46,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:46,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:46,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:46,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:46,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:46,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:46,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:46,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:46,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:46,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:46,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:01:46,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:46,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:46,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:46,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:46,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:46,628 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 23:01:46,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1990199150] [2020-10-13 23:01:46,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:01:46,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 23:01:46,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619982602] [2020-10-13 23:01:46,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 23:01:46,629 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:01:46,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 23:01:46,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-13 23:01:46,630 INFO L87 Difference]: Start difference. First operand 1257 states and 1515 transitions. Second operand 13 states. [2020-10-13 23:01:46,889 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:01:47,241 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 23:01:47,576 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-10-13 23:01:48,037 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:01:48,347 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-13 23:01:48,717 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-10-13 23:01:49,006 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:01:49,324 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-13 23:01:49,699 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:01:50,167 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:01:50,472 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:01:50,898 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:01:56,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:01:56,739 INFO L93 Difference]: Finished difference Result 3251 states and 4024 transitions. [2020-10-13 23:01:56,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 23:01:56,741 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-10-13 23:01:56,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:01:56,750 INFO L225 Difference]: With dead ends: 3251 [2020-10-13 23:01:56,750 INFO L226 Difference]: Without dead ends: 2036 [2020-10-13 23:01:56,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=286, Invalid=644, Unknown=0, NotChecked=0, Total=930 [2020-10-13 23:01:56,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2020-10-13 23:01:57,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1622. [2020-10-13 23:01:57,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1622 states. [2020-10-13 23:01:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 1959 transitions. [2020-10-13 23:01:57,016 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 1959 transitions. Word has length 92 [2020-10-13 23:01:57,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:01:57,017 INFO L479 AbstractCegarLoop]: Abstraction has 1622 states and 1959 transitions. [2020-10-13 23:01:57,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 23:01:57,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 1959 transitions. [2020-10-13 23:01:57,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-13 23:01:57,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:01:57,020 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:01:57,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 23:01:57,021 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:01:57,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:01:57,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1826521188, now seen corresponding path program 1 times [2020-10-13 23:01:57,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:01:57,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2085107375] [2020-10-13 23:01:57,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:01:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:57,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:57,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:57,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:57,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-13 23:01:59,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:01:59,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2112 [2020-10-13 23:01:59,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 23:01:59,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 23:01:59,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 23:01:59,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,432 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:01:59,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:01:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:59,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:01:59,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:59,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:59,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:59,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:01:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:59,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:59,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:59,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:59,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:59,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:59,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:01:59,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:01:59,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:59,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:59,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:01:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:01:59,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 23:01:59,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:59,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 23:01:59,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 23:01:59,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 23:01:59,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:01:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:59,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 23:01:59,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-13 23:01:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 23:01:59,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 23:01:59,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:01:59,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:59,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:01:59,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 23:01:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:59,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:01:59,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:01:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:59,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:59,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:01:59,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:59,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:59,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-13 23:01:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:01:59,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:01:59,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:01:59,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:59,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:01:59,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:01:59,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:59,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:59,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:59,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:01:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:01:59,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:01:59,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:59,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:59,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:59,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:01:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:01:59,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:01:59,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:01:59,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:01:59,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:01:59,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:01:59,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:01:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:01:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:01:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:01:59,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:01:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 23:01:59,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2085107375] [2020-10-13 23:01:59,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:01:59,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 23:01:59,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83199172] [2020-10-13 23:01:59,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 23:01:59,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:01:59,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 23:01:59,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-13 23:01:59,692 INFO L87 Difference]: Start difference. First operand 1622 states and 1959 transitions. Second operand 13 states. [2020-10-13 23:01:59,943 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:02:00,292 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 23:02:00,618 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 23:02:01,044 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:02:01,336 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:02:01,677 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-13 23:02:01,953 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:02:02,266 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:02:02,693 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:02:03,102 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 23:02:03,408 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 23:02:03,887 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 23:02:09,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:02:09,733 INFO L93 Difference]: Finished difference Result 4073 states and 5044 transitions. [2020-10-13 23:02:09,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-13 23:02:09,734 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2020-10-13 23:02:09,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:02:09,744 INFO L225 Difference]: With dead ends: 4073 [2020-10-13 23:02:09,744 INFO L226 Difference]: Without dead ends: 2493 [2020-10-13 23:02:09,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=286, Invalid=644, Unknown=0, NotChecked=0, Total=930 [2020-10-13 23:02:09,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2493 states. [2020-10-13 23:02:10,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2493 to 1975. [2020-10-13 23:02:10,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2020-10-13 23:02:10,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 2395 transitions. [2020-10-13 23:02:10,085 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 2395 transitions. Word has length 93 [2020-10-13 23:02:10,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:02:10,085 INFO L479 AbstractCegarLoop]: Abstraction has 1975 states and 2395 transitions. [2020-10-13 23:02:10,086 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 23:02:10,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 2395 transitions. [2020-10-13 23:02:10,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-13 23:02:10,090 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:02:10,090 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:02:10,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 23:02:10,091 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:02:10,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:02:10,091 INFO L82 PathProgramCache]: Analyzing trace with hash -711851439, now seen corresponding path program 1 times [2020-10-13 23:02:10,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:02:10,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017892521] [2020-10-13 23:02:10,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:02:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:10,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:10,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:10,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:10,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 23:02:12,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 23:02:12,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2048 [2020-10-13 23:02:12,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 23:02:12,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-13 23:02:12,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 23:02:12,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:12,444 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:02:12,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:02:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:02:12,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 23:02:12,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:12,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:12,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:02:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:02:12,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:02:12,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:12,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:12,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:12,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:02:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:02:12,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:02:12,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:12,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:12,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:02:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:02:12,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:02:12,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:12,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:12,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:12,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 23:02:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 23:02:12,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 23:02:12,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 23:02:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 23:02:12,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:12,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 23:02:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 23:02:12,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 23:02:12,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 23:02:12,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:12,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 23:02:12,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:02:12,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 23:02:12,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:02:12,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:02:12,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:02:12,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:12,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:02:12,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:02:12,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:02:12,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:12,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:12,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:12,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:12,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-13 23:02:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:02:12,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 23:02:12,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:12,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:02:12,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:12,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:02:12,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:02:12,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 23:02:12,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:12,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:12,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:12,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:02:12,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:12,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:02:12,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:02:12,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:12,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:12,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:12,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 23:02:12,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:02:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:12,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:12,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:12,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:02:12,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:12,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:02:12,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:12,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:12,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:12,850 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-10-13 23:02:12,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017892521] [2020-10-13 23:02:12,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 23:02:12,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 23:02:12,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705368009] [2020-10-13 23:02:12,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 23:02:12,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:02:12,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 23:02:12,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-13 23:02:12,854 INFO L87 Difference]: Start difference. First operand 1975 states and 2395 transitions. Second operand 13 states. [2020-10-13 23:02:13,085 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:02:13,438 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 23:02:13,742 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 23:02:14,183 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:02:14,469 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:02:14,820 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-13 23:02:15,121 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:02:15,439 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-13 23:02:15,910 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-13 23:02:16,283 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-13 23:02:16,603 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-13 23:02:17,106 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-13 23:02:22,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:02:22,081 INFO L93 Difference]: Finished difference Result 4259 states and 5255 transitions. [2020-10-13 23:02:22,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-13 23:02:22,082 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 94 [2020-10-13 23:02:22,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:02:22,094 INFO L225 Difference]: With dead ends: 4259 [2020-10-13 23:02:22,095 INFO L226 Difference]: Without dead ends: 2326 [2020-10-13 23:02:22,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=266, Invalid=604, Unknown=0, NotChecked=0, Total=870 [2020-10-13 23:02:22,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2326 states. [2020-10-13 23:02:22,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2326 to 432. [2020-10-13 23:02:22,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-10-13 23:02:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 505 transitions. [2020-10-13 23:02:22,253 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 505 transitions. Word has length 94 [2020-10-13 23:02:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:02:22,253 INFO L479 AbstractCegarLoop]: Abstraction has 432 states and 505 transitions. [2020-10-13 23:02:22,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 23:02:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 505 transitions. [2020-10-13 23:02:22,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-13 23:02:22,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:02:22,255 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:02:22,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 23:02:22,256 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:02:22,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:02:22,256 INFO L82 PathProgramCache]: Analyzing trace with hash 2019319629, now seen corresponding path program 1 times [2020-10-13 23:02:22,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:02:22,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17327042] [2020-10-13 23:02:22,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:02:22,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 23:02:22,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 170 [2020-10-13 23:02:22,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:02:22,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-10-13 23:02:22,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 23:02:22,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,706 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:02:22,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:02:22,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:02:22,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 23:02:22,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:02:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:02:22,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:22,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:02:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:02:22,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:02:22,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:02:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:02:22,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:02:22,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 23:02:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 23:02:22,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:22,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:22,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:02:22,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:02:22,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 23:02:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:02:22,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:02:22,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:02:22,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 23:02:22,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:22,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:02:22,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:22,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 23:02:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:02:22,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:02:22,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:02:22,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:02:22,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:22,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 23:02:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:02:22,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 23:02:22,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:02:22,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:22,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:02:22,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:02:22,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:02:22,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:22,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:02:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:22,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:22,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:22,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:02:22,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:22,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:22,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:22,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:22,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:22,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:22,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:22,905 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-13 23:02:22,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17327042] [2020-10-13 23:02:22,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:02:22,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 23:02:22,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294386919] [2020-10-13 23:02:22,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 23:02:22,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:02:22,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 23:02:22,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 23:02:22,907 INFO L87 Difference]: Start difference. First operand 432 states and 505 transitions. Second operand 8 states. [2020-10-13 23:02:23,135 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:02:23,440 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 23:02:23,731 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 23:02:27,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:02:27,016 INFO L93 Difference]: Finished difference Result 1000 states and 1207 transitions. [2020-10-13 23:02:27,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 23:02:27,017 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2020-10-13 23:02:27,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:02:27,021 INFO L225 Difference]: With dead ends: 1000 [2020-10-13 23:02:27,021 INFO L226 Difference]: Without dead ends: 610 [2020-10-13 23:02:27,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-10-13 23:02:27,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-10-13 23:02:27,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 521. [2020-10-13 23:02:27,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2020-10-13 23:02:27,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 613 transitions. [2020-10-13 23:02:27,134 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 613 transitions. Word has length 103 [2020-10-13 23:02:27,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:02:27,134 INFO L479 AbstractCegarLoop]: Abstraction has 521 states and 613 transitions. [2020-10-13 23:02:27,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 23:02:27,135 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 613 transitions. [2020-10-13 23:02:27,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-10-13 23:02:27,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:02:27,137 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 23:02:27,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 23:02:27,137 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:02:27,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:02:27,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1834221589, now seen corresponding path program 1 times [2020-10-13 23:02:27,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:02:27,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868990882] [2020-10-13 23:02:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:02:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-13 23:02:27,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-13 23:02:27,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 23:02:27,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 23:02:27,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 23:02:27,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,536 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-10-13 23:02:27,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 23:02:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:02:27,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 23:02:27,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 23:02:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:02:27,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 23:02:27,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:02:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 23:02:27,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:27,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-13 23:02:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 23:02:27,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 23:02:27,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 23:02:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 23:02:27,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:02:27,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:02:27,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:27,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 23:02:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:02:27,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:02:27,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:02:27,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:27,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 23:02:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:02:27,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:27,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-13 23:02:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:02:27,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:02:27,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 23:02:27,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:02:27,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 23:02:27,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 23:02:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-13 23:02:27,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 23:02:27,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-13 23:02:27,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 23:02:27,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 23:02:27,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 23:02:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 23:02:27,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:27,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 23:02:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 23:02:27,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 23:02:27,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 23:02:27,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 23:02:27,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 23:02:27,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 23:02:27,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 23:02:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 23:02:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 23:02:27,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 23:02:27,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 23:02:27,821 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-13 23:02:27,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868990882] [2020-10-13 23:02:27,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 23:02:27,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 23:02:27,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810735222] [2020-10-13 23:02:27,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 23:02:27,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 23:02:27,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 23:02:27,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 23:02:27,824 INFO L87 Difference]: Start difference. First operand 521 states and 613 transitions. Second operand 8 states. [2020-10-13 23:02:28,061 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-13 23:02:28,354 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-13 23:02:28,614 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-10-13 23:02:32,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 23:02:32,336 INFO L93 Difference]: Finished difference Result 1392 states and 1667 transitions. [2020-10-13 23:02:32,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 23:02:32,336 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-10-13 23:02:32,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 23:02:32,340 INFO L225 Difference]: With dead ends: 1392 [2020-10-13 23:02:32,340 INFO L226 Difference]: Without dead ends: 913 [2020-10-13 23:02:32,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-10-13 23:02:32,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2020-10-13 23:02:32,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 766. [2020-10-13 23:02:32,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 766 states. [2020-10-13 23:02:32,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 891 transitions. [2020-10-13 23:02:32,498 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 891 transitions. Word has length 120 [2020-10-13 23:02:32,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 23:02:32,499 INFO L479 AbstractCegarLoop]: Abstraction has 766 states and 891 transitions. [2020-10-13 23:02:32,499 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 23:02:32,499 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 891 transitions. [2020-10-13 23:02:32,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-13 23:02:32,501 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 23:02:32,501 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] [2020-10-13 23:02:32,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 23:02:32,501 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 23:02:32,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 23:02:32,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1042200075, now seen corresponding path program 1 times [2020-10-13 23:02:32,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 23:02:32,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738287282] [2020-10-13 23:02:32,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 23:02:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 23:02:32,549 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 23:02:32,549 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 23:02:32,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 23:02:32,561 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2020-10-13 23:02:32,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:02:32 BoogieIcfgContainer [2020-10-13 23:02:32,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 23:02:32,586 INFO L168 Benchmark]: Toolchain (without parser) took 148994.80 ms. Allocated memory was 147.8 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 98.2 MB in the beginning and 984.9 MB in the end (delta: -886.7 MB). Peak memory consumption was 207.0 MB. Max. memory is 7.1 GB. [2020-10-13 23:02:32,586 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 23:02:32,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1479.99 ms. Allocated memory was 147.8 MB in the beginning and 210.8 MB in the end (delta: 62.9 MB). Free memory was 98.0 MB in the beginning and 141.6 MB in the end (delta: -43.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. [2020-10-13 23:02:32,587 INFO L168 Benchmark]: Boogie Preprocessor took 247.44 ms. Allocated memory is still 210.8 MB. Free memory was 141.6 MB in the beginning and 131.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-10-13 23:02:32,587 INFO L168 Benchmark]: RCFGBuilder took 4750.68 ms. Allocated memory was 210.8 MB in the beginning and 346.0 MB in the end (delta: 135.3 MB). Free memory was 131.7 MB in the beginning and 239.4 MB in the end (delta: -107.6 MB). Peak memory consumption was 128.4 MB. Max. memory is 7.1 GB. [2020-10-13 23:02:32,588 INFO L168 Benchmark]: TraceAbstraction took 142509.53 ms. Allocated memory was 346.0 MB in the beginning and 1.2 GB in the end (delta: 895.5 MB). Free memory was 239.4 MB in the beginning and 984.9 MB in the end (delta: -745.5 MB). Peak memory consumption was 150.0 MB. Max. memory is 7.1 GB. [2020-10-13 23:02:32,590 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1479.99 ms. Allocated memory was 147.8 MB in the beginning and 210.8 MB in the end (delta: 62.9 MB). Free memory was 98.0 MB in the beginning and 141.6 MB in the end (delta: -43.6 MB). Peak memory consumption was 35.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 247.44 ms. Allocated memory is still 210.8 MB. Free memory was 141.6 MB in the beginning and 131.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4750.68 ms. Allocated memory was 210.8 MB in the beginning and 346.0 MB in the end (delta: 135.3 MB). Free memory was 131.7 MB in the beginning and 239.4 MB in the end (delta: -107.6 MB). Peak memory consumption was 128.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 142509.53 ms. Allocated memory was 346.0 MB in the beginning and 1.2 GB in the end (delta: 895.5 MB). Free memory was 239.4 MB in the beginning and 984.9 MB in the end (delta: -745.5 MB). Peak memory consumption was 150.0 MB. 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: 142.3s, OverallIterations: 17, TraceHistogramMax: 4, AutomataDifference: 108.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6056 SDtfs, 18369 SDslu, 12160 SDs, 0 SdLazy, 27008 SolverSat, 13603 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 625 GetRequests, 345 SyntacticMatches, 4 SemanticMatches, 276 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 845 ImplicationChecksByTransitivity, 33.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1975occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 5274 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 30.2s InterpolantComputationTime, 1394 NumberOfCodeBlocks, 1394 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1257 ConstructedInterpolants, 0 QuantifiedInterpolants, 457447 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 279/297 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...