/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -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 0.1.25-5644d1e-m [2020-08-18 17:36:02,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 17:36:02,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 17:36:02,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 17:36:02,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 17:36:02,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 17:36:02,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 17:36:02,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 17:36:02,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 17:36:02,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 17:36:02,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 17:36:02,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 17:36:02,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 17:36:02,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 17:36:02,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 17:36:02,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 17:36:02,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 17:36:02,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 17:36:02,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 17:36:02,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 17:36:02,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 17:36:02,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 17:36:02,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 17:36:02,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 17:36:02,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 17:36:02,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 17:36:02,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 17:36:02,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 17:36:02,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 17:36:02,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 17:36:02,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 17:36:02,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 17:36:02,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 17:36:02,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 17:36:02,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 17:36:02,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 17:36:02,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 17:36:02,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 17:36:02,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 17:36:02,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 17:36:02,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 17:36:02,780 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 [2020-08-18 17:36:02,819 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 17:36:02,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 17:36:02,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 17:36:02,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 17:36:02,822 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 17:36:02,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 17:36:02,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 17:36:02,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 17:36:02,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 17:36:02,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 17:36:02,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 17:36:02,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 17:36:02,825 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 17:36:02,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 17:36:02,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 17:36:02,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 17:36:02,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 17:36:02,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 17:36:02,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 17:36:02,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 17:36:02,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 17:36:02,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 17:36:02,827 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 17:36:02,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 17:36:02,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 17:36:02,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 17:36:02,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-18 17:36:02,828 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLEST; [2020-08-18 17:36:03,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 17:36:03,160 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 17:36:03,163 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 17:36:03,165 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 17:36:03,165 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 17:36:03,166 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-18 17:36:03,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52972526f/c826ea7de7c2412babb0521c710e85ea/FLAG6b9c525fe [2020-08-18 17:36:03,885 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 17:36:03,885 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-18 17:36:03,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52972526f/c826ea7de7c2412babb0521c710e85ea/FLAG6b9c525fe [2020-08-18 17:36:04,018 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52972526f/c826ea7de7c2412babb0521c710e85ea [2020-08-18 17:36:04,028 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 17:36:04,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 17:36:04,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 17:36:04,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 17:36:04,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 17:36:04,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:36:04" (1/1) ... [2020-08-18 17:36:04,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@738085fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:36:04, skipping insertion in model container [2020-08-18 17:36:04,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 05:36:04" (1/1) ... [2020-08-18 17:36:04,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 17:36:04,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 17:36:04,728 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-18 17:36:04,729 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2540-2541] [2020-08-18 17:36:05,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:36:05,396 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 17:36:05,478 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-18 17:36:05,479 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2540-2541] [2020-08-18 17:36:05,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 17:36:05,791 INFO L208 MainTranslator]: Completed translation [2020-08-18 17:36:05,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:36:05 WrapperNode [2020-08-18 17:36:05,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 17:36:05,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 17:36:05,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 17:36:05,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 17:36:05,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:36:05" (1/1) ... [2020-08-18 17:36:05,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:36:05" (1/1) ... [2020-08-18 17:36:05,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:36:05" (1/1) ... [2020-08-18 17:36:05,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:36:05" (1/1) ... [2020-08-18 17:36:05,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:36:05" (1/1) ... [2020-08-18 17:36:05,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:36:05" (1/1) ... [2020-08-18 17:36:05,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:36:05" (1/1) ... [2020-08-18 17:36:06,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 17:36:06,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 17:36:06,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 17:36:06,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 17:36:06,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:36:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 17:36:06,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 17:36:06,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 17:36:06,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-18 17:36:06,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-08-18 17:36:06,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-18 17:36:06,222 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-18 17:36:06,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-08-18 17:36:06,223 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-08-18 17:36:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-08-18 17:36:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-08-18 17:36:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-18 17:36:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-18 17:36:06,224 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-18 17:36:06,227 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-18 17:36:06,227 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-18 17:36:06,227 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-18 17:36:06,227 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-18 17:36:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 17:36:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-18 17:36:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-18 17:36:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-18 17:36:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-18 17:36:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-18 17:36:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-18 17:36:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-18 17:36:06,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-18 17:36:06,230 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-18 17:36:06,230 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-18 17:36:06,230 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-08-18 17:36:06,230 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-08-18 17:36:06,230 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-08-18 17:36:06,231 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-08-18 17:36:06,231 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-08-18 17:36:06,231 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-08-18 17:36:06,231 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-08-18 17:36:06,231 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-08-18 17:36:06,231 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-08-18 17:36:06,231 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-08-18 17:36:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-08-18 17:36:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-08-18 17:36:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-08-18 17:36:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-08-18 17:36:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-08-18 17:36:06,232 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-08-18 17:36:06,233 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-08-18 17:36:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-08-18 17:36:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-08-18 17:36:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-08-18 17:36:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-08-18 17:36:06,234 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-08-18 17:36:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-08-18 17:36:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-08-18 17:36:06,235 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-08-18 17:36:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-08-18 17:36:06,236 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-08-18 17:36:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-08-18 17:36:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-08-18 17:36:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-08-18 17:36:06,237 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-08-18 17:36:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-08-18 17:36:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 17:36:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-18 17:36:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-18 17:36:06,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-18 17:36:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-18 17:36:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-18 17:36:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-18 17:36:06,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-18 17:36:06,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-08-18 17:36:06,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-08-18 17:36:06,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-08-18 17:36:06,241 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-08-18 17:36:06,242 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-08-18 17:36:06,242 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-08-18 17:36:06,242 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-08-18 17:36:06,243 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-08-18 17:36:06,243 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-08-18 17:36:06,244 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-08-18 17:36:06,244 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-08-18 17:36:06,244 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-08-18 17:36:06,244 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-08-18 17:36:06,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-18 17:36:06,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-08-18 17:36:06,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-18 17:36:06,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-18 17:36:06,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-18 17:36:06,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-18 17:36:06,246 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-18 17:36:06,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-18 17:36:06,246 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-08-18 17:36:06,246 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-08-18 17:36:06,247 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-18 17:36:06,247 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-18 17:36:06,247 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-18 17:36:06,248 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-18 17:36:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 17:36:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-18 17:36:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-18 17:36:06,248 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-08-18 17:36:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-08-18 17:36:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-08-18 17:36:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-18 17:36:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-08-18 17:36:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-18 17:36:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-08-18 17:36:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-08-18 17:36:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-08-18 17:36:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-08-18 17:36:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 17:36:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-18 17:36:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-18 17:36:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-18 17:36:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-18 17:36:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-18 17:36:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-18 17:36:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-18 17:36:06,253 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-18 17:36:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-18 17:36:06,254 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-18 17:36:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-18 17:36:06,255 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-18 17:36:06,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-18 17:36:06,256 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 17:36:06,257 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 17:36:06,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 17:36:06,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-18 17:36:06,258 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 17:36:06,258 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 17:36:06,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-18 17:36:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 17:36:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-18 17:36:06,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-18 17:36:06,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-18 17:36:06,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-18 17:36:06,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-18 17:36:06,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-18 17:36:06,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-18 17:36:06,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-08-18 17:36:06,267 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-08-18 17:36:06,267 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-08-18 17:36:06,268 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-18 17:36:06,277 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-18 17:36:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-18 17:36:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 17:36:06,278 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-08-18 17:36:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-08-18 17:36:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-08-18 17:36:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-08-18 17:36:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-08-18 17:36:06,279 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-08-18 17:36:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-08-18 17:36:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-08-18 17:36:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-08-18 17:36:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-08-18 17:36:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-08-18 17:36:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-08-18 17:36:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-08-18 17:36:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-08-18 17:36:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-08-18 17:36:06,281 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-08-18 17:36:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-08-18 17:36:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-08-18 17:36:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-18 17:36:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 17:36:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-08-18 17:36:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-08-18 17:36:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-08-18 17:36:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-18 17:36:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-08-18 17:36:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-08-18 17:36:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-08-18 17:36:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-08-18 17:36:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 17:36:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-08-18 17:36:06,284 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-08-18 17:36:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-08-18 17:36:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-08-18 17:36:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 17:36:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 17:36:06,285 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-08-18 17:36:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-08-18 17:36:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-08-18 17:36:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-08-18 17:36:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-08-18 17:36:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-08-18 17:36:06,286 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-08-18 17:36:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-08-18 17:36:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-08-18 17:36:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-08-18 17:36:06,287 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-08-18 17:36:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-08-18 17:36:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-08-18 17:36:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-08-18 17:36:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-18 17:36:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-18 17:36:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-18 17:36:06,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-08-18 17:36:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 17:36:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-18 17:36:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-18 17:36:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-18 17:36:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-18 17:36:06,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-18 17:36:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-18 17:36:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 17:36:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 17:36:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 17:36:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-18 17:36:06,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 17:36:07,254 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-18 17:36:09,200 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 17:36:09,200 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 17:36:09,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:36:09 BoogieIcfgContainer [2020-08-18 17:36:09,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 17:36:09,220 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 17:36:09,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 17:36:09,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 17:36:09,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 05:36:04" (1/3) ... [2020-08-18 17:36:09,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e61543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:36:09, skipping insertion in model container [2020-08-18 17:36:09,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 05:36:05" (2/3) ... [2020-08-18 17:36:09,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e61543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 05:36:09, skipping insertion in model container [2020-08-18 17:36:09,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 05:36:09" (3/3) ... [2020-08-18 17:36:09,228 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-18 17:36:09,241 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 17:36:09,255 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 17:36:09,270 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 17:36:09,308 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 17:36:09,308 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 17:36:09,308 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 17:36:09,309 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 17:36:09,309 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 17:36:09,309 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 17:36:09,309 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 17:36:09,309 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 17:36:09,358 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-08-18 17:36:09,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-18 17:36:09,371 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:36:09,372 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] [2020-08-18 17:36:09,372 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:36:09,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:36:09,378 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-08-18 17:36:09,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:36:09,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80764507] [2020-08-18 17:36:09,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:36:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:10,489 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 17:36:10,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:36:10,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:10,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:36:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:10,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:36:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:10,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 17:36:10,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80764507] [2020-08-18 17:36:10,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:36:10,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 17:36:10,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222092108] [2020-08-18 17:36:10,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 17:36:10,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:36:10,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 17:36:10,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 17:36:10,635 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-08-18 17:36:11,402 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-08-18 17:36:19,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:36:19,815 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-08-18 17:36:19,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 17:36:19,818 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-08-18 17:36:19,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:36:19,845 INFO L225 Difference]: With dead ends: 1648 [2020-08-18 17:36:19,845 INFO L226 Difference]: Without dead ends: 834 [2020-08-18 17:36:19,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-18 17:36:19,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-18 17:36:20,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-08-18 17:36:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-18 17:36:20,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-08-18 17:36:20,115 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-08-18 17:36:20,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:36:20,116 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-08-18 17:36:20,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 17:36:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-08-18 17:36:20,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-18 17:36:20,119 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:36:20,120 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] [2020-08-18 17:36:20,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 17:36:20,120 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:36:20,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:36:20,121 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-08-18 17:36:20,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:36:20,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1801005232] [2020-08-18 17:36:20,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:36:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:20,754 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 17:36:20,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:36:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:20,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:36:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:20,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:36:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:20,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 17:36:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:20,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:36:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:20,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 17:36:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:20,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 17:36:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:20,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:36:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 17:36:20,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1801005232] [2020-08-18 17:36:20,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 17:36:20,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 17:36:20,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923917899] [2020-08-18 17:36:20,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 17:36:20,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:36:20,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 17:36:20,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-18 17:36:20,928 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-08-18 17:36:29,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:36:29,090 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-08-18 17:36:29,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 17:36:29,091 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-18 17:36:29,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:36:29,099 INFO L225 Difference]: With dead ends: 1640 [2020-08-18 17:36:29,100 INFO L226 Difference]: Without dead ends: 864 [2020-08-18 17:36:29,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-18 17:36:29,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-08-18 17:36:29,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-08-18 17:36:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-08-18 17:36:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-08-18 17:36:29,303 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-08-18 17:36:29,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:36:29,304 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-08-18 17:36:29,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 17:36:29,304 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-08-18 17:36:29,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-18 17:36:29,318 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:36:29,321 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] [2020-08-18 17:36:29,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 17:36:29,321 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:36:29,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:36:29,322 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-08-18 17:36:29,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:36:29,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753306113] [2020-08-18 17:36:29,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:36:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:29,943 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 17:36:29,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:36:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:29,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:36:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:29,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:36:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:30,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 17:36:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:30,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:36:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:30,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 17:36:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:30,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 17:36:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:30,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:36:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 17:36:30,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753306113] [2020-08-18 17:36:30,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:36:30,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 17:36:30,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114650235] [2020-08-18 17:36:30,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 17:36:30,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:36:30,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 17:36:30,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-18 17:36:30,115 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-08-18 17:36:38,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:36:38,832 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-08-18 17:36:38,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 17:36:38,834 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-08-18 17:36:38,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:36:38,843 INFO L225 Difference]: With dead ends: 1674 [2020-08-18 17:36:38,844 INFO L226 Difference]: Without dead ends: 894 [2020-08-18 17:36:38,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-18 17:36:38,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-18 17:36:38,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-08-18 17:36:38,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-08-18 17:36:38,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-08-18 17:36:38,991 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-08-18 17:36:38,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:36:38,992 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-08-18 17:36:38,992 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 17:36:38,992 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-08-18 17:36:38,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-18 17:36:38,994 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:36:38,994 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:36:38,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 17:36:38,995 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:36:38,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:36:38,995 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-08-18 17:36:38,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:36:38,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [878808874] [2020-08-18 17:36:38,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:36:39,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:39,571 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 17:36:39,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:36:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:39,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:36:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:39,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:36:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:39,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 17:36:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:39,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:36:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:39,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 17:36:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:39,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 17:36:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:39,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:36:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:39,786 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 17:36:39,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [878808874] [2020-08-18 17:36:39,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:36:39,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 17:36:39,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049202861] [2020-08-18 17:36:39,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 17:36:39,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:36:39,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 17:36:39,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-18 17:36:39,789 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-08-18 17:36:48,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:36:48,901 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-08-18 17:36:48,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 17:36:48,903 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-08-18 17:36:48,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:36:48,911 INFO L225 Difference]: With dead ends: 1734 [2020-08-18 17:36:48,911 INFO L226 Difference]: Without dead ends: 924 [2020-08-18 17:36:48,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-08-18 17:36:48,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-08-18 17:36:49,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-08-18 17:36:49,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-18 17:36:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-08-18 17:36:49,054 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-08-18 17:36:49,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:36:49,055 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-08-18 17:36:49,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 17:36:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-08-18 17:36:49,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-18 17:36:49,057 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:36:49,058 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:36:49,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 17:36:49,058 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:36:49,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:36:49,059 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-08-18 17:36:49,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:36:49,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696504868] [2020-08-18 17:36:49,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:36:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:49,641 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 17:36:49,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:36:49,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:49,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:36:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:49,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:36:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:49,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 17:36:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:49,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:36:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:49,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 17:36:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:49,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 17:36:49,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:49,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:36:49,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 17:36:49,861 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696504868] [2020-08-18 17:36:49,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:36:49,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 17:36:49,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380859873] [2020-08-18 17:36:49,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 17:36:49,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:36:49,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 17:36:49,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-18 17:36:49,868 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-08-18 17:36:57,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 17:36:57,373 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-08-18 17:36:57,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 17:36:57,375 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-08-18 17:36:57,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 17:36:57,381 INFO L225 Difference]: With dead ends: 1794 [2020-08-18 17:36:57,382 INFO L226 Difference]: Without dead ends: 954 [2020-08-18 17:36:57,385 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-18 17:36:57,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-08-18 17:36:57,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-08-18 17:36:57,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-08-18 17:36:57,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-08-18 17:36:57,500 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-08-18 17:36:57,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 17:36:57,500 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-08-18 17:36:57,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 17:36:57,501 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-08-18 17:36:57,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-18 17:36:57,502 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 17:36:57,502 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 17:36:57,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 17:36:57,502 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 17:36:57,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 17:36:57,503 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-08-18 17:36:57,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 17:36:57,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1376520888] [2020-08-18 17:36:57,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 17:36:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:58,127 WARN L193 SmtUtils]: Spent 519.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 17:36:58,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 17:36:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:58,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 17:36:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:58,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 17:36:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:58,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 17:36:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:58,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:36:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:58,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 17:36:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:58,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 17:36:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:58,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 17:36:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 17:36:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 17:36:58,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1376520888] [2020-08-18 17:36:58,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 17:36:58,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 17:36:58,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772107121] [2020-08-18 17:36:58,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 17:36:58,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 17:36:58,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 17:36:58,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-18 17:36:58,341 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states.