/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 05:02:33,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 05:02:33,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 05:02:33,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 05:02:33,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 05:02:33,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 05:02:33,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 05:02:33,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 05:02:33,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 05:02:33,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 05:02:33,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 05:02:33,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 05:02:33,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 05:02:33,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 05:02:33,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 05:02:33,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 05:02:33,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 05:02:33,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 05:02:33,400 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 05:02:33,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 05:02:33,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 05:02:33,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 05:02:33,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 05:02:33,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 05:02:33,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 05:02:33,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 05:02:33,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 05:02:33,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 05:02:33,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 05:02:33,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 05:02:33,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 05:02:33,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 05:02:33,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 05:02:33,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 05:02:33,444 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 05:02:33,444 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 05:02:33,445 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 05:02:33,445 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 05:02:33,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 05:02:33,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 05:02:33,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 05:02:33,448 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-28 05:02:33,476 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 05:02:33,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 05:02:33,477 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 05:02:33,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 05:02:33,478 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 05:02:33,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 05:02:33,478 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 05:02:33,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 05:02:33,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 05:02:33,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 05:02:33,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 05:02:33,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 05:02:33,480 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 05:02:33,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 05:02:33,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 05:02:33,481 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 05:02:33,481 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 05:02:33,481 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 05:02:33,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 05:02:33,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 05:02:33,482 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 05:02:33,482 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 05:02:33,482 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 05:02:33,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 05:02:33,483 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 05:02:33,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 05:02:33,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 05:02:33,483 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 05:02:33,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 05:02:33,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 05:02:33,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 05:02:33,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 05:02:33,922 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 05:02:33,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-10-28 05:02:33,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2cea5b49/67012a69140844f584ab2855deabcc17/FLAGeee7e3f96 [2020-10-28 05:02:34,957 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 05:02:34,958 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-10-28 05:02:35,015 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2cea5b49/67012a69140844f584ab2855deabcc17/FLAGeee7e3f96 [2020-10-28 05:02:35,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a2cea5b49/67012a69140844f584ab2855deabcc17 [2020-10-28 05:02:35,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 05:02:35,441 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 05:02:35,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 05:02:35,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 05:02:35,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 05:02:35,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:02:35" (1/1) ... [2020-10-28 05:02:35,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2b30b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:02:35, skipping insertion in model container [2020-10-28 05:02:35,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:02:35" (1/1) ... [2020-10-28 05:02:35,461 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 05:02:35,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 05:02:36,016 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2550] [2020-10-28 05:02:36,017 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2551-2552] [2020-10-28 05:02:36,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 05:02:36,692 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 05:02:36,757 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2550] [2020-10-28 05:02:36,758 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2551-2552] [2020-10-28 05:02:36,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 05:02:37,019 INFO L208 MainTranslator]: Completed translation [2020-10-28 05:02:37,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:02:37 WrapperNode [2020-10-28 05:02:37,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 05:02:37,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 05:02:37,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 05:02:37,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 05:02:37,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:02:37" (1/1) ... [2020-10-28 05:02:37,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:02:37" (1/1) ... [2020-10-28 05:02:37,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:02:37" (1/1) ... [2020-10-28 05:02:37,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:02:37" (1/1) ... [2020-10-28 05:02:37,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:02:37" (1/1) ... [2020-10-28 05:02:37,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:02:37" (1/1) ... [2020-10-28 05:02:37,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:02:37" (1/1) ... [2020-10-28 05:02:37,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 05:02:37,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 05:02:37,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 05:02:37,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 05:02:37,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:02:37" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 05:02:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 05:02:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 05:02:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 05:02:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-10-28 05:02:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-10-28 05:02:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 05:02:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-28 05:02:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-10-28 05:02:37,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-10-28 05:02:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-10-28 05:02:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-10-28 05:02:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-10-28 05:02:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-10-28 05:02:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-10-28 05:02:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-10-28 05:02:37,415 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-10-28 05:02:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-10-28 05:02:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-10-28 05:02:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 05:02:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 05:02:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 05:02:37,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 05:02:37,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 05:02:37,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 05:02:37,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 05:02:37,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 05:02:37,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 05:02:37,417 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-28 05:02:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-28 05:02:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-10-28 05:02:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-10-28 05:02:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-10-28 05:02:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-10-28 05:02:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-10-28 05:02:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-10-28 05:02:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-10-28 05:02:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-10-28 05:02:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-10-28 05:02:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-10-28 05:02:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-10-28 05:02:37,419 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-10-28 05:02:37,420 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-10-28 05:02:37,420 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-10-28 05:02:37,420 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-10-28 05:02:37,420 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-10-28 05:02:37,420 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-10-28 05:02:37,470 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-10-28 05:02:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-10-28 05:02:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-10-28 05:02:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-10-28 05:02:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-10-28 05:02:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-10-28 05:02:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-10-28 05:02:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-10-28 05:02:37,471 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-10-28 05:02:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-10-28 05:02:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-10-28 05:02:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-10-28 05:02:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-10-28 05:02:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-10-28 05:02:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-10-28 05:02:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 05:02:37,472 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 05:02:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-28 05:02:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-28 05:02:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-28 05:02:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-28 05:02:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-28 05:02:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-28 05:02:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-28 05:02:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-10-28 05:02:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-10-28 05:02:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-10-28 05:02:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-10-28 05:02:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-10-28 05:02:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-10-28 05:02:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-10-28 05:02:37,476 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-10-28 05:02:37,476 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-10-28 05:02:37,476 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-10-28 05:02:37,477 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-10-28 05:02:37,477 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-10-28 05:02:37,477 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-28 05:02:37,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-10-28 05:02:37,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 05:02:37,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 05:02:37,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-10-28 05:02:37,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-28 05:02:37,478 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-10-28 05:02:37,478 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 05:02:37,478 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-10-28 05:02:37,478 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-10-28 05:02:37,478 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-10-28 05:02:37,479 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-10-28 05:02:37,479 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 05:02:37,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 05:02:37,479 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 05:02:37,479 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 05:02:37,479 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 05:02:37,479 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 05:02:37,480 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 05:02:37,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 05:02:37,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 05:02:37,480 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-28 05:02:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-10-28 05:02:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-10-28 05:02:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-10-28 05:02:37,481 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 05:02:37,482 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-10-28 05:02:37,482 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-28 05:02:37,482 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-28 05:02:37,482 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-10-28 05:02:37,483 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-10-28 05:02:37,484 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-10-28 05:02:37,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 05:02:37,484 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-10-28 05:02:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-10-28 05:02:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-10-28 05:02:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-10-28 05:02:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-10-28 05:02:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-10-28 05:02:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-10-28 05:02:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-10-28 05:02:37,485 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-10-28 05:02:37,486 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 05:02:37,486 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-28 05:02:37,486 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 05:02:37,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-28 05:02:37,487 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 05:02:37,488 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 05:02:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 05:02:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 05:02:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 05:02:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 05:02:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 05:02:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 05:02:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 05:02:37,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 05:02:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 05:02:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 05:02:37,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 05:02:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 05:02:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-10-28 05:02:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-10-28 05:02:37,497 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-28 05:02:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-10-28 05:02:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-28 05:02:37,499 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-28 05:02:37,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 05:02:37,499 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-10-28 05:02:37,499 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-10-28 05:02:37,499 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-10-28 05:02:37,499 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-10-28 05:02:37,500 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-10-28 05:02:37,500 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-10-28 05:02:37,500 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-10-28 05:02:37,500 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-10-28 05:02:37,500 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-10-28 05:02:37,500 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-10-28 05:02:37,500 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-10-28 05:02:37,500 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-10-28 05:02:37,501 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-10-28 05:02:37,501 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-10-28 05:02:37,501 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-10-28 05:02:37,501 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-10-28 05:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-10-28 05:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-10-28 05:02:37,518 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-28 05:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 05:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-10-28 05:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-10-28 05:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-10-28 05:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-10-28 05:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-10-28 05:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-10-28 05:02:37,519 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-10-28 05:02:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-10-28 05:02:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 05:02:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-10-28 05:02:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-10-28 05:02:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-10-28 05:02:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-10-28 05:02:37,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 05:02:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-10-28 05:02:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-10-28 05:02:37,521 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-10-28 05:02:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-10-28 05:02:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-10-28 05:02:37,524 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-10-28 05:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-10-28 05:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-10-28 05:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-10-28 05:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-10-28 05:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-10-28 05:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-10-28 05:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-10-28 05:02:37,525 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-10-28 05:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 05:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 05:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-10-28 05:02:37,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-10-28 05:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 05:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-28 05:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-28 05:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-28 05:02:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-28 05:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-28 05:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-28 05:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 05:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 05:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 05:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 05:02:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 05:02:38,940 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 05:02:41,199 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 05:02:41,200 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 05:02:41,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:02:41 BoogieIcfgContainer [2020-10-28 05:02:41,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 05:02:41,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 05:02:41,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 05:02:41,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 05:02:41,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:02:35" (1/3) ... [2020-10-28 05:02:41,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573c3a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:02:41, skipping insertion in model container [2020-10-28 05:02:41,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:02:37" (2/3) ... [2020-10-28 05:02:41,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573c3a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:02:41, skipping insertion in model container [2020-10-28 05:02:41,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:02:41" (3/3) ... [2020-10-28 05:02:41,220 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-10-28 05:02:41,233 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 05:02:41,240 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 05:02:41,253 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 05:02:41,301 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 05:02:41,301 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 05:02:41,302 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 05:02:41,302 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 05:02:41,302 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 05:02:41,302 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 05:02:41,302 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 05:02:41,302 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 05:02:41,350 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states. [2020-10-28 05:02:41,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-28 05:02:41,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:02:41,362 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] [2020-10-28 05:02:41,362 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:02:41,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:02:41,371 INFO L82 PathProgramCache]: Analyzing trace with hash -314032981, now seen corresponding path program 1 times [2020-10-28 05:02:41,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:02:41,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338472201] [2020-10-28 05:02:41,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:02:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:02:41,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:02:42,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:02:42,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:02:43,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:02:43,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 05:02:43,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 05:02:43,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2065 [2020-10-28 05:02:43,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:02:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:02:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-28 05:02:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 05:02:43,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-28 05:02:45,013 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:02:45,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:02:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:02:45,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:02:45,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:02:45,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:02:45,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:02:45,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-28 05:02:45,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:02:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:02:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:02:45,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:02:45,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:02:45,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:02:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:02:45,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:02:45,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:02:45,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:02:45,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:02:45,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 05:02:45,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:02:45,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:02:45,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:02:45,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:02:45,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:02:45,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:02:45,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:02:45,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:02:45,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:02:45,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:02:45,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:02:45,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:02:45,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:02:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:02:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:02:45,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:02:45,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:02:45,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 05:02:45,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338472201] [2020-10-28 05:02:45,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 05:02:45,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 05:02:45,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598483364] [2020-10-28 05:02:45,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 05:02:45,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:02:45,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 05:02:45,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 05:02:45,280 INFO L87 Difference]: Start difference. First operand 795 states. Second operand 5 states. [2020-10-28 05:02:46,754 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 05:03:00,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:03:00,639 INFO L93 Difference]: Finished difference Result 1654 states and 2175 transitions. [2020-10-28 05:03:00,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 05:03:00,642 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-10-28 05:03:00,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:03:00,671 INFO L225 Difference]: With dead ends: 1654 [2020-10-28 05:03:00,671 INFO L226 Difference]: Without dead ends: 836 [2020-10-28 05:03:00,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 05:03:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-10-28 05:03:00,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 805. [2020-10-28 05:03:00,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2020-10-28 05:03:00,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1041 transitions. [2020-10-28 05:03:00,947 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1041 transitions. Word has length 32 [2020-10-28 05:03:00,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:03:00,948 INFO L481 AbstractCegarLoop]: Abstraction has 805 states and 1041 transitions. [2020-10-28 05:03:00,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 05:03:00,948 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1041 transitions. [2020-10-28 05:03:00,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-28 05:03:00,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:03:00,953 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 05:03:00,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 05:03:00,953 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:03:00,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:03:00,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1851919481, now seen corresponding path program 1 times [2020-10-28 05:03:00,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:03:00,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [223481233] [2020-10-28 05:03:00,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:03:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:01,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:01,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:01,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:02,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:02,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 05:03:02,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 05:03:02,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1803 [2020-10-28 05:03:02,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:02,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:03:02,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-28 05:03:02,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 05:03:02,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:03,912 WARN L193 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:03:03,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:03:03,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:03,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:04,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:04,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:03:04,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:04,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-28 05:03:04,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:04,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:04,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:04,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:04,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:04,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:03:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:04,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:04,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:04,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:03:04,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:04,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:03:04,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:04,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:04,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:04,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:04,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:04,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:03:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:04,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:04,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:04,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:03:04,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:04,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:03:04,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:04,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:04,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:04,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:04,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:04,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:03:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:04,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:04,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:04,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:04,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 05:03:04,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:03:04,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 05:03:04,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:04,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:03:04,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 05:03:04,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 05:03:04,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:04,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:03:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:04,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:04,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:04,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 05:03:04,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:04,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 05:03:04,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:04,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:03:04,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 05:03:04,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-28 05:03:04,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:04,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-28 05:03:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:04,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:04,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:04,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:03:04,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:04,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 05:03:04,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:03:04,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:04,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:04,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-28 05:03:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:04,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:04,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:04,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:03:04,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:04,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 05:03:04,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 05:03:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:04,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 05:03:04,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:04,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:03:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:04,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:04,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:04,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:03:04,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:04,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 05:03:04,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:04,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:04,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:04,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:04,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:04,367 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 05:03:04,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [223481233] [2020-10-28 05:03:04,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 05:03:04,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-28 05:03:04,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787384042] [2020-10-28 05:03:04,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 05:03:04,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:03:04,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 05:03:04,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-28 05:03:04,373 INFO L87 Difference]: Start difference. First operand 805 states and 1041 transitions. Second operand 8 states. [2020-10-28 05:03:05,966 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 276 [2020-10-28 05:03:18,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:03:18,187 INFO L93 Difference]: Finished difference Result 1716 states and 2253 transitions. [2020-10-28 05:03:18,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 05:03:18,189 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-10-28 05:03:18,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:03:18,202 INFO L225 Difference]: With dead ends: 1716 [2020-10-28 05:03:18,202 INFO L226 Difference]: Without dead ends: 938 [2020-10-28 05:03:18,206 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 05:03:18,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2020-10-28 05:03:18,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 868. [2020-10-28 05:03:18,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 868 states. [2020-10-28 05:03:18,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1127 transitions. [2020-10-28 05:03:18,426 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1127 transitions. Word has length 67 [2020-10-28 05:03:18,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:03:18,426 INFO L481 AbstractCegarLoop]: Abstraction has 868 states and 1127 transitions. [2020-10-28 05:03:18,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 05:03:18,427 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1127 transitions. [2020-10-28 05:03:18,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-28 05:03:18,430 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:03:18,431 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-28 05:03:18,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 05:03:18,431 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:03:18,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:03:18,432 INFO L82 PathProgramCache]: Analyzing trace with hash -218283172, now seen corresponding path program 1 times [2020-10-28 05:03:18,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:03:18,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763252109] [2020-10-28 05:03:18,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:03:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:18,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:18,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:19,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:19,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 05:03:19,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:03:19,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1024 [2020-10-28 05:03:19,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 05:03:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 05:03:19,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 05:03:19,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:20,617 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:03:20,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:03:20,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:20,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:20,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:20,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:03:20,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:20,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 05:03:20,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:20,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:20,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:20,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:20,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:20,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:03:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:20,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:20,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:20,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:03:20,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:20,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:03:20,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:20,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:20,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:20,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:20,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:03:20,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:20,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:20,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:20,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:03:20,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:20,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:03:20,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:20,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:20,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:20,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:20,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:20,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:03:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:20,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:20,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:20,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 05:03:20,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:20,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 05:03:20,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:20,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 05:03:20,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 05:03:20,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 05:03:20,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:20,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:03:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:20,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:20,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:20,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 05:03:20,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:20,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 05:03:20,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 05:03:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 05:03:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 05:03:20,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:20,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 05:03:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:20,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:20,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:20,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:03:20,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:20,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 05:03:20,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:03:20,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:20,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:20,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 05:03:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:20,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:21,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:21,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:03:21,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:21,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 05:03:21,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:21,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:21,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 05:03:21,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:21,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:21,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:03:21,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:21,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:21,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:21,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:03:21,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:21,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 05:03:21,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:21,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:21,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:21,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:21,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:21,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 05:03:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:21,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:21,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:21,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:03:21,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:21,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 05:03:21,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:21,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:21,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:03:21,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:21,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 05:03:21,065 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 05:03:21,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763252109] [2020-10-28 05:03:21,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 05:03:21,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 05:03:21,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776381871] [2020-10-28 05:03:21,069 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 05:03:21,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:03:21,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 05:03:21,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 05:03:21,072 INFO L87 Difference]: Start difference. First operand 868 states and 1127 transitions. Second operand 8 states. [2020-10-28 05:03:31,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:03:31,014 INFO L93 Difference]: Finished difference Result 1824 states and 2402 transitions. [2020-10-28 05:03:31,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 05:03:31,015 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-10-28 05:03:31,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:03:31,023 INFO L225 Difference]: With dead ends: 1824 [2020-10-28 05:03:31,023 INFO L226 Difference]: Without dead ends: 983 [2020-10-28 05:03:31,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-28 05:03:31,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2020-10-28 05:03:31,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 913. [2020-10-28 05:03:31,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2020-10-28 05:03:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1193 transitions. [2020-10-28 05:03:31,181 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1193 transitions. Word has length 82 [2020-10-28 05:03:31,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:03:31,181 INFO L481 AbstractCegarLoop]: Abstraction has 913 states and 1193 transitions. [2020-10-28 05:03:31,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 05:03:31,182 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1193 transitions. [2020-10-28 05:03:31,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-28 05:03:31,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:03:31,185 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-28 05:03:31,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 05:03:31,185 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:03:31,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:03:31,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1048263400, now seen corresponding path program 2 times [2020-10-28 05:03:31,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:03:31,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558311225] [2020-10-28 05:03:31,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:03:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:31,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:31,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:32,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:32,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-28 05:03:32,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:03:32,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1756 [2020-10-28 05:03:32,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:32,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 05:03:32,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 05:03:32,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 05:03:32,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:34,052 WARN L193 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:03:34,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:03:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:34,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:34,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:34,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:03:34,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:34,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-28 05:03:34,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:34,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:34,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:34,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:03:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:34,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:34,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:34,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:03:34,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:34,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:03:34,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:34,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:34,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:34,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:34,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:34,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:03:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:34,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:34,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:34,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:03:34,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:34,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:03:34,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:34,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:34,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:34,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:34,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:34,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:03:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:34,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:34,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:34,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 05:03:34,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:34,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 05:03:34,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:34,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 05:03:34,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 05:03:34,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 05:03:34,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:34,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:03:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:34,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:34,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:34,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 05:03:34,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:34,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 05:03:34,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:34,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 05:03:34,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 05:03:34,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 05:03:34,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:34,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-10-28 05:03:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:34,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:34,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:34,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:03:34,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:34,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:03:34,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:34,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:34,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:03:34,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:34,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:34,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 05:03:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:34,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:34,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:34,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:03:34,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:34,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 05:03:34,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:34,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:34,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 05:03:34,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:34,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:34,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:03:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:34,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:34,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:34,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:03:34,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:34,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:03:34,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:34,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:34,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:34,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:34,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 05:03:34,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 05:03:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:34,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:34,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:34,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:03:34,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:34,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:03:34,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:34,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:34,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:03:34,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:34,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:34,577 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 05:03:34,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558311225] [2020-10-28 05:03:34,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 05:03:34,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 05:03:34,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995003696] [2020-10-28 05:03:34,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 05:03:34,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:03:34,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 05:03:34,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-28 05:03:34,586 INFO L87 Difference]: Start difference. First operand 913 states and 1193 transitions. Second operand 9 states. [2020-10-28 05:03:48,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:03:48,023 INFO L93 Difference]: Finished difference Result 1914 states and 2534 transitions. [2020-10-28 05:03:48,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 05:03:48,025 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2020-10-28 05:03:48,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:03:48,032 INFO L225 Difference]: With dead ends: 1914 [2020-10-28 05:03:48,032 INFO L226 Difference]: Without dead ends: 1028 [2020-10-28 05:03:48,037 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-28 05:03:48,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2020-10-28 05:03:48,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 958. [2020-10-28 05:03:48,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 958 states. [2020-10-28 05:03:48,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1259 transitions. [2020-10-28 05:03:48,200 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1259 transitions. Word has length 84 [2020-10-28 05:03:48,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:03:48,201 INFO L481 AbstractCegarLoop]: Abstraction has 958 states and 1259 transitions. [2020-10-28 05:03:48,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 05:03:48,201 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1259 transitions. [2020-10-28 05:03:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-10-28 05:03:48,204 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:03:48,204 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-28 05:03:48,204 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 05:03:48,204 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:03:48,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:03:48,205 INFO L82 PathProgramCache]: Analyzing trace with hash 204654548, now seen corresponding path program 3 times [2020-10-28 05:03:48,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:03:48,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1348319997] [2020-10-28 05:03:48,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:03:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:48,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:48,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:49,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:49,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 05:03:49,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:03:49,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1463 [2020-10-28 05:03:49,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:49,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 05:03:49,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 05:03:49,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 05:03:49,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:50,925 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:03:50,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:03:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:50,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:51,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:51,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:03:51,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:51,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 05:03:51,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:51,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:51,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:51,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:51,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 05:03:51,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:03:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:51,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:51,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:51,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:03:51,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:51,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 05:03:51,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:51,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:51,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:51,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:51,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 05:03:51,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:03:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:51,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:51,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:51,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:03:51,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:51,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:03:51,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:51,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:51,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:51,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:51,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:03:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:51,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:51,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:51,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-28 05:03:51,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:51,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 05:03:51,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 05:03:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 05:03:51,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 05:03:51,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:51,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:03:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:51,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:51,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:51,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:03:51,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:51,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 05:03:51,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:51,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 05:03:51,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 05:03:51,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-28 05:03:51,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:51,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 05:03:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:51,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:51,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:51,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:03:51,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:51,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:03:51,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:03:51,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:51,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:51,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-28 05:03:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:51,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:51,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:51,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:03:51,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:51,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 05:03:51,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:51,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:51,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 05:03:51,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:51,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:51,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:03:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:51,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:51,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:51,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:03:51,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:51,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:03:51,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:51,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:51,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:03:51,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:51,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:51,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-28 05:03:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:03:51,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:03:51,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:03:51,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:03:51,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:03:51,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:03:51,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:03:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:03:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:03:51,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:03:51,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:03:51,544 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 05:03:51,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1348319997] [2020-10-28 05:03:51,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 05:03:51,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 05:03:51,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729852522] [2020-10-28 05:03:51,546 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 05:03:51,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:03:51,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 05:03:51,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-28 05:03:51,547 INFO L87 Difference]: Start difference. First operand 958 states and 1259 transitions. Second operand 10 states. [2020-10-28 05:04:02,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:04:02,760 INFO L93 Difference]: Finished difference Result 2004 states and 2666 transitions. [2020-10-28 05:04:02,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 05:04:02,763 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 86 [2020-10-28 05:04:02,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:04:02,774 INFO L225 Difference]: With dead ends: 2004 [2020-10-28 05:04:02,774 INFO L226 Difference]: Without dead ends: 1073 [2020-10-28 05:04:02,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-28 05:04:02,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2020-10-28 05:04:02,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1003. [2020-10-28 05:04:02,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2020-10-28 05:04:02,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1325 transitions. [2020-10-28 05:04:02,974 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1325 transitions. Word has length 86 [2020-10-28 05:04:02,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:04:02,975 INFO L481 AbstractCegarLoop]: Abstraction has 1003 states and 1325 transitions. [2020-10-28 05:04:02,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 05:04:02,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1325 transitions. [2020-10-28 05:04:02,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-28 05:04:02,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:04:02,978 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 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] [2020-10-28 05:04:02,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 05:04:02,979 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:04:02,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:04:02,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1667959696, now seen corresponding path program 4 times [2020-10-28 05:04:02,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:04:02,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [773937806] [2020-10-28 05:04:02,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:04:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:03,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:03,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:04,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:04,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 05:04:04,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:04:04,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1762 [2020-10-28 05:04:04,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:04,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 05:04:04,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 05:04:04,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 05:04:04,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:05,894 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:04:05,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:04:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:05,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:05,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:05,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:04:05,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 05:04:05,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:05,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:05,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:06,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:04:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:06,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:06,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:06,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:04:06,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:06,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:04:06,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:06,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:06,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:06,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:06,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:06,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:04:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:06,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:06,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:06,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:04:06,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:06,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:04:06,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:06,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:06,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:06,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:06,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:06,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:04:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:06,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:06,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:06,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-28 05:04:06,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:06,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-28 05:04:06,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 05:04:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 05:04:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 05:04:06,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:06,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:04:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:06,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:06,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:06,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 05:04:06,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:06,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 05:04:06,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:06,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 05:04:06,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 05:04:06,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 05:04:06,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:06,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-28 05:04:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:06,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:06,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:06,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:04:06,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:06,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:04:06,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:06,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:06,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:04:06,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:06,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:06,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-28 05:04:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:06,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:06,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:06,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:04:06,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:06,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 05:04:06,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:06,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 05:04:06,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:06,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:06,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:04:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:06,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:06,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:06,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:04:06,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:06,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:04:06,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:06,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:06,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:06,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:06,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:06,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-28 05:04:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:06,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:06,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:06,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:04:06,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:06,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:04:06,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:06,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:06,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:04:06,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:06,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:06,455 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 05:04:06,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [773937806] [2020-10-28 05:04:06,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 05:04:06,456 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-28 05:04:06,456 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130197713] [2020-10-28 05:04:06,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 05:04:06,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:04:06,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 05:04:06,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-28 05:04:06,458 INFO L87 Difference]: Start difference. First operand 1003 states and 1325 transitions. Second operand 11 states. [2020-10-28 05:04:21,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:04:21,595 INFO L93 Difference]: Finished difference Result 2094 states and 2798 transitions. [2020-10-28 05:04:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 05:04:21,597 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2020-10-28 05:04:21,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:04:21,604 INFO L225 Difference]: With dead ends: 2094 [2020-10-28 05:04:21,604 INFO L226 Difference]: Without dead ends: 1118 [2020-10-28 05:04:21,608 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 05:04:21,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2020-10-28 05:04:21,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1048. [2020-10-28 05:04:21,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2020-10-28 05:04:21,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1391 transitions. [2020-10-28 05:04:21,756 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1391 transitions. Word has length 88 [2020-10-28 05:04:21,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:04:21,757 INFO L481 AbstractCegarLoop]: Abstraction has 1048 states and 1391 transitions. [2020-10-28 05:04:21,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-28 05:04:21,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1391 transitions. [2020-10-28 05:04:21,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-28 05:04:21,758 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:04:21,758 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 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] [2020-10-28 05:04:21,759 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 05:04:21,759 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:04:21,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:04:21,759 INFO L82 PathProgramCache]: Analyzing trace with hash -845066164, now seen corresponding path program 5 times [2020-10-28 05:04:21,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:04:21,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55784001] [2020-10-28 05:04:21,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:04:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:21,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:21,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:23,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:23,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-10-28 05:04:23,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:04:23,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1849 [2020-10-28 05:04:23,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 05:04:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 05:04:23,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 05:04:23,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:24,906 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:04:24,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:04:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:24,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:25,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:25,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:04:25,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:25,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 05:04:25,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:25,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:25,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:25,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:04:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:25,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:25,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:25,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:04:25,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:25,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:04:25,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:25,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:25,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:25,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:25,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:25,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:04:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:25,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:25,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:25,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:04:25,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:25,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:04:25,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:25,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:25,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:25,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:04:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:25,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:25,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:25,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 05:04:25,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:25,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-28 05:04:25,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 05:04:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 05:04:25,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 05:04:25,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:25,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:04:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:25,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:25,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:25,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-28 05:04:25,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:25,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 05:04:25,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:25,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 05:04:25,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 05:04:25,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 05:04:25,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:25,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 05:04:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:25,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:25,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:25,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:04:25,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:25,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:04:25,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:25,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:25,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:04:25,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:25,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:25,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-28 05:04:25,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:25,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:25,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:25,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:04:25,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:25,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 05:04:25,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 05:04:25,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:25,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:25,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:04:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:25,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:25,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:25,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:04:25,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:25,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:04:25,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:25,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:25,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:25,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-28 05:04:25,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:25,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:25,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:25,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:04:25,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:25,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:04:25,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:25,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:25,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:04:25,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:25,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:25,553 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 05:04:25,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55784001] [2020-10-28 05:04:25,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 05:04:25,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-28 05:04:25,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090294506] [2020-10-28 05:04:25,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 05:04:25,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:04:25,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 05:04:25,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-28 05:04:25,556 INFO L87 Difference]: Start difference. First operand 1048 states and 1391 transitions. Second operand 12 states. [2020-10-28 05:04:39,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:04:39,504 INFO L93 Difference]: Finished difference Result 2184 states and 2930 transitions. [2020-10-28 05:04:39,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 05:04:39,507 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2020-10-28 05:04:39,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:04:39,514 INFO L225 Difference]: With dead ends: 2184 [2020-10-28 05:04:39,514 INFO L226 Difference]: Without dead ends: 1163 [2020-10-28 05:04:39,518 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-28 05:04:39,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2020-10-28 05:04:39,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1093. [2020-10-28 05:04:39,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1093 states. [2020-10-28 05:04:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1457 transitions. [2020-10-28 05:04:39,674 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1457 transitions. Word has length 90 [2020-10-28 05:04:39,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:04:39,675 INFO L481 AbstractCegarLoop]: Abstraction has 1093 states and 1457 transitions. [2020-10-28 05:04:39,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 05:04:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1457 transitions. [2020-10-28 05:04:39,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-28 05:04:39,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:04:39,677 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 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] [2020-10-28 05:04:39,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 05:04:39,677 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:04:39,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:04:39,678 INFO L82 PathProgramCache]: Analyzing trace with hash -2091297272, now seen corresponding path program 6 times [2020-10-28 05:04:39,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:04:39,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [911171627] [2020-10-28 05:04:39,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:04:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:39,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:39,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:42,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:42,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-28 05:04:42,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:04:42,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2582 [2020-10-28 05:04:42,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 05:04:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 05:04:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 05:04:42,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:43,374 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:04:43,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:04:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:43,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:43,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:43,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:04:43,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:43,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-28 05:04:43,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:43,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:43,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:43,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:04:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:43,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:43,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:43,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:04:43,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:43,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:04:43,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:43,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:43,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:43,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:43,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:43,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:04:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:43,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:43,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:43,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:04:43,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:43,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:04:43,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:43,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:43,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:43,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:43,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:43,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:04:43,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:43,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:43,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:43,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-28 05:04:43,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:43,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-28 05:04:43,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 05:04:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 05:04:43,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 05:04:43,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:43,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:04:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:43,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:43,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:43,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-28 05:04:43,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:43,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-28 05:04:43,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 05:04:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 05:04:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 05:04:43,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:43,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 05:04:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:43,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:44,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:44,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:04:44,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:44,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:04:44,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:44,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:44,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:04:44,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:44,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:44,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 05:04:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:44,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:44,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:44,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:04:44,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:44,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 05:04:44,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:44,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:44,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 05:04:44,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:44,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:44,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:04:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:44,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:44,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:44,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:04:44,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:44,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:04:44,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:44,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:04:44,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:44,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:44,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 05:04:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:44,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:44,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:04:44,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:04:44,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:04:44,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:04:44,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:04:44,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:04:44,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:04:44,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:04:44,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:04:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 05:04:44,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [911171627] [2020-10-28 05:04:44,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 05:04:44,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-28 05:04:44,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114640102] [2020-10-28 05:04:44,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-28 05:04:44,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:04:44,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-28 05:04:44,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-10-28 05:04:44,112 INFO L87 Difference]: Start difference. First operand 1093 states and 1457 transitions. Second operand 13 states. [2020-10-28 05:04:59,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:04:59,121 INFO L93 Difference]: Finished difference Result 2274 states and 3062 transitions. [2020-10-28 05:04:59,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 05:04:59,124 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 92 [2020-10-28 05:04:59,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:04:59,134 INFO L225 Difference]: With dead ends: 2274 [2020-10-28 05:04:59,134 INFO L226 Difference]: Without dead ends: 1208 [2020-10-28 05:04:59,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-28 05:04:59,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2020-10-28 05:04:59,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1138. [2020-10-28 05:04:59,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1138 states. [2020-10-28 05:04:59,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1138 states to 1138 states and 1523 transitions. [2020-10-28 05:04:59,313 INFO L78 Accepts]: Start accepts. Automaton has 1138 states and 1523 transitions. Word has length 92 [2020-10-28 05:04:59,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:04:59,314 INFO L481 AbstractCegarLoop]: Abstraction has 1138 states and 1523 transitions. [2020-10-28 05:04:59,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-28 05:04:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1138 states and 1523 transitions. [2020-10-28 05:04:59,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-28 05:04:59,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:04:59,317 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 3, 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] [2020-10-28 05:04:59,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 05:04:59,317 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:04:59,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:04:59,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1423516476, now seen corresponding path program 7 times [2020-10-28 05:04:59,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:04:59,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [382052975] [2020-10-28 05:04:59,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:04:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:04:59,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:04:59,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:01,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:01,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-28 05:05:01,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:05:01,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2429 [2020-10-28 05:05:01,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 05:05:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 05:05:01,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 05:05:01,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:02,957 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:05:02,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:05:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:02,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:03,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:03,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:05:03,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:03,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 05:05:03,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:03,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:03,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:03,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:03,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:03,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:05:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:03,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:03,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:03,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:05:03,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:03,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:05:03,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:03,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:03,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:05:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:03,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:03,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:03,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:05:03,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:03,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:05:03,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:03,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:03,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:03,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:05:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:03,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:03,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:03,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-28 05:05:03,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:03,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-28 05:05:03,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 05:05:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 05:05:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 05:05:03,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:03,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:05:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:03,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:03,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:03,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 05:05:03,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:03,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-10-28 05:05:03,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 05:05:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 05:05:03,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 05:05:03,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:03,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-28 05:05:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:03,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:03,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:03,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:05:03,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:03,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 05:05:03,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:03,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:05:03,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:03,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:03,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-28 05:05:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:03,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:03,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:03,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:05:03,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:03,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 05:05:03,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 05:05:03,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:03,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:03,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:05:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:03,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:03,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:03,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:05:03,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:03,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:05:03,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:03,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:03,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:03,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:03,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:03,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 05:05:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:03,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:03,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:03,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:05:03,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:03,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:05:03,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:03,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:03,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:05:03,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:03,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:03,756 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 4 proven. 49 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 05:05:03,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [382052975] [2020-10-28 05:05:03,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 05:05:03,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-28 05:05:03,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952569445] [2020-10-28 05:05:03,757 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 05:05:03,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:05:03,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 05:05:03,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-28 05:05:03,758 INFO L87 Difference]: Start difference. First operand 1138 states and 1523 transitions. Second operand 14 states. [2020-10-28 05:05:19,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:05:19,089 INFO L93 Difference]: Finished difference Result 2364 states and 3194 transitions. [2020-10-28 05:05:19,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 05:05:19,093 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 94 [2020-10-28 05:05:19,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:05:19,101 INFO L225 Difference]: With dead ends: 2364 [2020-10-28 05:05:19,101 INFO L226 Difference]: Without dead ends: 1253 [2020-10-28 05:05:19,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-28 05:05:19,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-10-28 05:05:19,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1183. [2020-10-28 05:05:19,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2020-10-28 05:05:19,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1589 transitions. [2020-10-28 05:05:19,277 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1589 transitions. Word has length 94 [2020-10-28 05:05:19,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:05:19,277 INFO L481 AbstractCegarLoop]: Abstraction has 1183 states and 1589 transitions. [2020-10-28 05:05:19,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 05:05:19,277 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1589 transitions. [2020-10-28 05:05:19,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-28 05:05:19,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:05:19,281 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 3, 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] [2020-10-28 05:05:19,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 05:05:19,281 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:05:19,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:05:19,282 INFO L82 PathProgramCache]: Analyzing trace with hash 363701376, now seen corresponding path program 8 times [2020-10-28 05:05:19,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:05:19,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1947893822] [2020-10-28 05:05:19,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:05:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:19,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:19,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:21,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:21,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 05:05:21,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:05:21,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2463 [2020-10-28 05:05:21,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:21,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 05:05:21,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 05:05:21,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 05:05:21,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:22,904 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:05:22,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:05:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:22,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:22,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:22,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:05:22,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:22,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 05:05:22,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:22,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:22,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:22,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:22,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:23,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:05:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:23,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:23,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:23,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:05:23,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:23,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:05:23,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:23,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:23,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:23,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:23,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:23,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:05:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:23,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:23,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:23,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:05:23,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:23,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:05:23,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:23,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:23,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:23,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:23,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:05:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:23,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:23,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:23,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-28 05:05:23,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:23,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-28 05:05:23,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:23,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 05:05:23,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 05:05:23,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 05:05:23,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:23,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:05:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:23,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:23,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:23,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-28 05:05:23,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:23,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 05:05:23,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:23,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 05:05:23,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 05:05:23,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-28 05:05:23,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:23,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:05:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:23,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:23,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:23,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:05:23,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:23,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:05:23,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:23,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:23,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:05:23,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:23,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:23,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 05:05:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:23,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:23,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:23,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:05:23,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 05:05:23,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 05:05:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:23,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:05:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:23,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:23,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:23,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:05:23,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:23,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:05:23,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:23,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:23,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:23,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:23,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:23,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-28 05:05:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:23,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:23,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:23,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:05:23,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:23,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:05:23,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:23,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:23,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:05:23,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:23,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:23,667 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 4 proven. 64 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 05:05:23,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1947893822] [2020-10-28 05:05:23,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 05:05:23,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-28 05:05:23,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861885677] [2020-10-28 05:05:23,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-28 05:05:23,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:05:23,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-28 05:05:23,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-10-28 05:05:23,669 INFO L87 Difference]: Start difference. First operand 1183 states and 1589 transitions. Second operand 15 states. [2020-10-28 05:05:44,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:05:44,753 INFO L93 Difference]: Finished difference Result 2454 states and 3326 transitions. [2020-10-28 05:05:44,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 05:05:44,756 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 96 [2020-10-28 05:05:44,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:05:44,763 INFO L225 Difference]: With dead ends: 2454 [2020-10-28 05:05:44,763 INFO L226 Difference]: Without dead ends: 1298 [2020-10-28 05:05:44,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2020-10-28 05:05:44,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states. [2020-10-28 05:05:44,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1228. [2020-10-28 05:05:44,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1228 states. [2020-10-28 05:05:44,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1655 transitions. [2020-10-28 05:05:44,946 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1655 transitions. Word has length 96 [2020-10-28 05:05:44,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:05:44,947 INFO L481 AbstractCegarLoop]: Abstraction has 1228 states and 1655 transitions. [2020-10-28 05:05:44,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-28 05:05:44,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1655 transitions. [2020-10-28 05:05:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-28 05:05:44,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:05:44,949 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 3, 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] [2020-10-28 05:05:44,949 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 05:05:44,949 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:05:44,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:05:44,950 INFO L82 PathProgramCache]: Analyzing trace with hash -106861252, now seen corresponding path program 9 times [2020-10-28 05:05:44,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:05:44,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402878404] [2020-10-28 05:05:44,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:05:44,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:45,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:45,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:47,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:47,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-28 05:05:47,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:05:47,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2367 [2020-10-28 05:05:47,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:47,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 05:05:47,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 05:05:47,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 05:05:47,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:48,512 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:05:48,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:05:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:48,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:48,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:48,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:05:48,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:48,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 05:05:48,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:48,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:48,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:48,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:05:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:48,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:48,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:48,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:05:48,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:48,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:05:48,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:48,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:48,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:48,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:48,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:48,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:05:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:48,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:48,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:48,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:05:48,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:48,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:05:48,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:48,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:48,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:48,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:48,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:48,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:05:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:48,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:48,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:48,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 05:05:48,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:48,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-28 05:05:48,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 05:05:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 05:05:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 05:05:48,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:48,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:05:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:48,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:48,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:48,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-28 05:05:48,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:48,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-28 05:05:48,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 05:05:48,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 05:05:48,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 05:05:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:49,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-28 05:05:49,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:49,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:49,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:49,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:05:49,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:49,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:05:49,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:49,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:49,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:05:49,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:49,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:49,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-28 05:05:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:49,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:49,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:49,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:05:49,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:49,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:05:49,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:49,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:49,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 05:05:49,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:49,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:49,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:05:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:49,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:49,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:49,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:05:49,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:49,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:05:49,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:49,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:49,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:05:49,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:49,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-28 05:05:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:05:49,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:05:49,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:05:49,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:05:49,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:05:49,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 05:05:49,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:05:49,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:05:49,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:05:49,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:05:49,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:05:49,298 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 4 proven. 81 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 05:05:49,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402878404] [2020-10-28 05:05:49,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 05:05:49,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-28 05:05:49,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192167634] [2020-10-28 05:05:49,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 05:05:49,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:05:49,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 05:05:49,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-10-28 05:05:49,300 INFO L87 Difference]: Start difference. First operand 1228 states and 1655 transitions. Second operand 16 states. [2020-10-28 05:06:10,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 05:06:10,348 INFO L93 Difference]: Finished difference Result 2544 states and 3458 transitions. [2020-10-28 05:06:10,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-28 05:06:10,352 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 98 [2020-10-28 05:06:10,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 05:06:10,359 INFO L225 Difference]: With dead ends: 2544 [2020-10-28 05:06:10,359 INFO L226 Difference]: Without dead ends: 1343 [2020-10-28 05:06:10,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2020-10-28 05:06:10,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2020-10-28 05:06:10,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1273. [2020-10-28 05:06:10,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1273 states. [2020-10-28 05:06:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 1721 transitions. [2020-10-28 05:06:10,525 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 1721 transitions. Word has length 98 [2020-10-28 05:06:10,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 05:06:10,526 INFO L481 AbstractCegarLoop]: Abstraction has 1273 states and 1721 transitions. [2020-10-28 05:06:10,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 05:06:10,526 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 1721 transitions. [2020-10-28 05:06:10,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-28 05:06:10,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 05:06:10,529 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 3, 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] [2020-10-28 05:06:10,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 05:06:10,530 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 05:06:10,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 05:06:10,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1345980680, now seen corresponding path program 10 times [2020-10-28 05:06:10,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 05:06:10,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214843462] [2020-10-28 05:06:10,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 05:06:10,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:06:10,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:06:10,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:06:13,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:06:13,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-28 05:06:13,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 05:06:13,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2968 [2020-10-28 05:06:13,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:06:13,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 05:06:13,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 05:06:13,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 05:06:13,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:06:14,725 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 274 [2020-10-28 05:06:14,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 05:06:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:06:14,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:06:14,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:06:14,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:06:14,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:06:14,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 05:06:14,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:06:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:06:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:06:14,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:06:14,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 05:06:14,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 05:06:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:06:14,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:06:14,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:06:14,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:06:14,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:06:14,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:06:14,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:06:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:06:14,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:06:14,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:06:14,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:06:14,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 05:06:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:06:14,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:06:14,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:06:14,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 05:06:14,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:06:14,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 05:06:14,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:06:14,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:06:14,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:06:14,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:06:14,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:06:14,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-28 05:06:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:06:14,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:06:15,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:06:15,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-10-28 05:06:15,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:06:15,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-28 05:06:15,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:06:15,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 05:06:15,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-28 05:06:15,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 05:06:15,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:06:15,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:06:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:06:15,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:06:15,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:06:15,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 05:06:15,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:06:15,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-28 05:06:15,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:06:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 05:06:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-28 05:06:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 05:06:15,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:06:15,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 05:06:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:06:15,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:06:15,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:06:15,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:06:15,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:06:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 05:06:15,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:06:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:06:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:06:15,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:06:15,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:06:15,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-28 05:06:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:06:15,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:06:15,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:06:15,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 05:06:15,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:06:15,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 05:06:15,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:06:15,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:06:15,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 05:06:15,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:06:15,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:06:15,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 05:06:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:06:15,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:06:15,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:06:15,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 05:06:15,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:06:15,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-28 05:06:15,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:06:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:06:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 05:06:15,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:06:15,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:06:15,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-28 05:06:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 05:06:15,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 05:06:15,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 05:06:15,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 05:06:15,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 05:06:15,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 05:06:15,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 05:06:15,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 05:06:15,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 05:06:15,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 05:06:15,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 05:06:15,612 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 4 proven. 100 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 05:06:15,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214843462] [2020-10-28 05:06:15,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 05:06:15,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-28 05:06:15,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448739432] [2020-10-28 05:06:15,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-28 05:06:15,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 05:06:15,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-28 05:06:15,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2020-10-28 05:06:15,614 INFO L87 Difference]: Start difference. First operand 1273 states and 1721 transitions. Second operand 17 states.