/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -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 0.1.25-177f698 [2020-08-22 06:48:04,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 06:48:04,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 06:48:04,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 06:48:04,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 06:48:04,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 06:48:04,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 06:48:04,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 06:48:04,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 06:48:04,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 06:48:04,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 06:48:04,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 06:48:04,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 06:48:04,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 06:48:04,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 06:48:04,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 06:48:04,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 06:48:04,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 06:48:04,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 06:48:04,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 06:48:04,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 06:48:04,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 06:48:04,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 06:48:04,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 06:48:04,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 06:48:04,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 06:48:04,695 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 06:48:04,696 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 06:48:04,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 06:48:04,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 06:48:04,698 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 06:48:04,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 06:48:04,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 06:48:04,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 06:48:04,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 06:48:04,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 06:48:04,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 06:48:04,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 06:48:04,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 06:48:04,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 06:48:04,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 06:48:04,705 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 [2020-08-22 06:48:04,728 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 06:48:04,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 06:48:04,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 06:48:04,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 06:48:04,730 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 06:48:04,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 06:48:04,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 06:48:04,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 06:48:04,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 06:48:04,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 06:48:04,731 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 06:48:04,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 06:48:04,731 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 06:48:04,732 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 06:48:04,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 06:48:04,732 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 06:48:04,732 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 06:48:04,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 06:48:04,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 06:48:04,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 06:48:04,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 06:48:04,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 06:48:04,733 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 06:48:04,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 06:48:04,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 06:48:04,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 06:48:04,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 06:48:04,734 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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-08-22 06:48:05,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 06:48:05,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 06:48:05,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 06:48:05,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 06:48:05,048 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 06:48:05,048 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-22 06:48:05,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5611a2527/2b824e423b3c4ce6b3a26df29c8e458c/FLAGa2a1e8fe5 [2020-08-22 06:48:05,858 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 06:48:05,859 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-22 06:48:05,897 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5611a2527/2b824e423b3c4ce6b3a26df29c8e458c/FLAGa2a1e8fe5 [2020-08-22 06:48:05,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5611a2527/2b824e423b3c4ce6b3a26df29c8e458c [2020-08-22 06:48:05,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 06:48:05,945 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 06:48:05,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 06:48:05,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 06:48:05,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 06:48:05,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:48:05" (1/1) ... [2020-08-22 06:48:05,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c04ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:48:05, skipping insertion in model container [2020-08-22 06:48:05,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:48:05" (1/1) ... [2020-08-22 06:48:05,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 06:48:06,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 06:48:06,626 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-22 06:48:06,627 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] [2020-08-22 06:48:07,300 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:48:07,327 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 06:48:07,414 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-22 06:48:07,415 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] [2020-08-22 06:48:07,654 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 06:48:07,778 INFO L208 MainTranslator]: Completed translation [2020-08-22 06:48:07,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:48:07 WrapperNode [2020-08-22 06:48:07,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 06:48:07,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 06:48:07,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 06:48:07,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 06:48:07,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:48:07" (1/1) ... [2020-08-22 06:48:07,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:48:07" (1/1) ... [2020-08-22 06:48:07,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:48:07" (1/1) ... [2020-08-22 06:48:07,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:48:07" (1/1) ... [2020-08-22 06:48:07,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:48:07" (1/1) ... [2020-08-22 06:48:08,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:48:07" (1/1) ... [2020-08-22 06:48:08,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:48:07" (1/1) ... [2020-08-22 06:48:08,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 06:48:08,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 06:48:08,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 06:48:08,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 06:48:08,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:48:07" (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 [2020-08-22 06:48:08,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 06:48:08,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 06:48:08,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-22 06:48:08,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-08-22 06:48:08,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-22 06:48:08,130 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-22 06:48:08,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-08-22 06:48:08,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-08-22 06:48:08,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-08-22 06:48:08,132 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-08-22 06:48:08,132 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-22 06:48:08,132 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-22 06:48:08,132 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-22 06:48:08,135 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-22 06:48:08,135 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-22 06:48:08,135 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-22 06:48:08,135 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-22 06:48:08,136 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 06:48:08,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-22 06:48:08,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-22 06:48:08,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-22 06:48:08,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-22 06:48:08,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-22 06:48:08,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-22 06:48:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-22 06:48:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-22 06:48:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-22 06:48:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-22 06:48:08,140 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-08-22 06:48:08,141 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-08-22 06:48:08,141 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-08-22 06:48:08,141 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-08-22 06:48:08,141 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-08-22 06:48:08,142 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-08-22 06:48:08,142 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-08-22 06:48:08,142 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-08-22 06:48:08,142 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-08-22 06:48:08,142 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-08-22 06:48:08,142 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-08-22 06:48:08,143 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-08-22 06:48:08,143 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-08-22 06:48:08,143 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-08-22 06:48:08,144 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-08-22 06:48:08,144 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-08-22 06:48:08,145 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-08-22 06:48:08,145 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-08-22 06:48:08,145 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-08-22 06:48:08,145 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-08-22 06:48:08,145 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-08-22 06:48:08,145 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-08-22 06:48:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-08-22 06:48:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-08-22 06:48:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-08-22 06:48:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-08-22 06:48:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-08-22 06:48:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-08-22 06:48:08,146 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-08-22 06:48:08,147 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-08-22 06:48:08,147 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-08-22 06:48:08,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-08-22 06:48:08,147 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 06:48:08,147 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-22 06:48:08,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-22 06:48:08,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-22 06:48:08,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-22 06:48:08,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-22 06:48:08,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-22 06:48:08,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-22 06:48:08,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-08-22 06:48:08,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-08-22 06:48:08,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-08-22 06:48:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-08-22 06:48:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-08-22 06:48:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-08-22 06:48:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-08-22 06:48:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-08-22 06:48:08,150 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-08-22 06:48:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-08-22 06:48:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-08-22 06:48:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-08-22 06:48:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-08-22 06:48:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-22 06:48:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-08-22 06:48:08,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-22 06:48:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-22 06:48:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-22 06:48:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-22 06:48:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-22 06:48:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-22 06:48:08,152 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-08-22 06:48:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-08-22 06:48:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-22 06:48:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-22 06:48:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-22 06:48:08,153 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-22 06:48:08,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 06:48:08,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-22 06:48:08,153 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-22 06:48:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-08-22 06:48:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-08-22 06:48:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-08-22 06:48:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-22 06:48:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-08-22 06:48:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-22 06:48:08,154 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-08-22 06:48:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-08-22 06:48:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-08-22 06:48:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-08-22 06:48:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 06:48:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-22 06:48:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-22 06:48:08,155 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-22 06:48:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-22 06:48:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-22 06:48:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-22 06:48:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-22 06:48:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-22 06:48:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-22 06:48:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-22 06:48:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-22 06:48:08,157 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-22 06:48:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-22 06:48:08,158 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 06:48:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-22 06:48:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 06:48:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-22 06:48:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 06:48:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 06:48:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-22 06:48:08,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 06:48:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-22 06:48:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-22 06:48:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-22 06:48:08,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-22 06:48:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-22 06:48:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-22 06:48:08,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-22 06:48:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-08-22 06:48:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-08-22 06:48:08,167 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-08-22 06:48:08,168 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-22 06:48:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-22 06:48:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-22 06:48:08,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 06:48:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-08-22 06:48:08,176 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-08-22 06:48:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-08-22 06:48:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-08-22 06:48:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-08-22 06:48:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-08-22 06:48:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-08-22 06:48:08,177 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-08-22 06:48:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-08-22 06:48:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-08-22 06:48:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-08-22 06:48:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-08-22 06:48:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-08-22 06:48:08,178 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-08-22 06:48:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-08-22 06:48:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-08-22 06:48:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-08-22 06:48:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-08-22 06:48:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-22 06:48:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 06:48:08,179 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-08-22 06:48:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-08-22 06:48:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-08-22 06:48:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-22 06:48:08,180 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-08-22 06:48:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-08-22 06:48:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-08-22 06:48:08,181 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-08-22 06:48:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 06:48:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-08-22 06:48:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-08-22 06:48:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-08-22 06:48:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-08-22 06:48:08,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 06:48:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 06:48:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-08-22 06:48:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-08-22 06:48:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-08-22 06:48:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-08-22 06:48:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-08-22 06:48:08,183 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-08-22 06:48:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-08-22 06:48:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-08-22 06:48:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-08-22 06:48:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-08-22 06:48:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-08-22 06:48:08,184 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-08-22 06:48:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-08-22 06:48:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-08-22 06:48:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-22 06:48:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-22 06:48:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-22 06:48:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-08-22 06:48:08,185 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 06:48:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-22 06:48:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-22 06:48:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-22 06:48:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-22 06:48:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-22 06:48:08,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-22 06:48:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 06:48:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 06:48:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 06:48:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-22 06:48:08,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 06:48:09,009 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-22 06:48:10,545 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 06:48:10,546 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 06:48:10,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:48:10 BoogieIcfgContainer [2020-08-22 06:48:10,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 06:48:10,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 06:48:10,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 06:48:10,559 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 06:48:10,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:48:05" (1/3) ... [2020-08-22 06:48:10,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf102ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:48:10, skipping insertion in model container [2020-08-22 06:48:10,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:48:07" (2/3) ... [2020-08-22 06:48:10,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf102ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:48:10, skipping insertion in model container [2020-08-22 06:48:10,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:48:10" (3/3) ... [2020-08-22 06:48:10,563 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 [2020-08-22 06:48:10,573 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 06:48:10,582 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 06:48:10,596 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 06:48:10,623 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 06:48:10,624 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 06:48:10,624 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 06:48:10,624 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 06:48:10,624 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 06:48:10,624 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 06:48:10,624 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 06:48:10,625 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 06:48:10,659 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-08-22 06:48:10,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-22 06:48:10,667 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:48:10,669 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] [2020-08-22 06:48:10,669 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:48:10,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:48:10,676 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-08-22 06:48:10,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:48:10,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537022626] [2020-08-22 06:48:10,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:48:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:11,739 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 06:48:11,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:48:11,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:11,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:48:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:11,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:48:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:11,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 06:48:11,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537022626] [2020-08-22 06:48:11,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:48:11,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 06:48:11,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864248241] [2020-08-22 06:48:11,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 06:48:11,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:48:11,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 06:48:11,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 06:48:11,933 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-08-22 06:48:12,689 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-08-22 06:48:20,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:48:20,436 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-08-22 06:48:20,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 06:48:20,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-08-22 06:48:20,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:48:20,469 INFO L225 Difference]: With dead ends: 1648 [2020-08-22 06:48:20,469 INFO L226 Difference]: Without dead ends: 834 [2020-08-22 06:48:20,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 06:48:20,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-22 06:48:20,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-08-22 06:48:20,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-22 06:48:20,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-08-22 06:48:20,709 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-08-22 06:48:20,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:48:20,710 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-08-22 06:48:20,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 06:48:20,710 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-08-22 06:48:20,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-22 06:48:20,713 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:48:20,714 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] [2020-08-22 06:48:20,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 06:48:20,714 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:48:20,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:48:20,715 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-08-22 06:48:20,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:48:20,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051952043] [2020-08-22 06:48:20,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:48:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:21,354 WARN L193 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 06:48:21,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:48:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:21,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:48:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:21,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:48:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:21,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 06:48:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:21,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:48:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:21,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-22 06:48:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:21,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-22 06:48:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:21,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:48:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 06:48:21,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2051952043] [2020-08-22 06:48:21,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 06:48:21,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 06:48:21,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864043207] [2020-08-22 06:48:21,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 06:48:21,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:48:21,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 06:48:21,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-22 06:48:21,561 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-08-22 06:48:27,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:48:27,482 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-08-22 06:48:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 06:48:27,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-22 06:48:27,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:48:27,491 INFO L225 Difference]: With dead ends: 1640 [2020-08-22 06:48:27,491 INFO L226 Difference]: Without dead ends: 864 [2020-08-22 06:48:27,495 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 [2020-08-22 06:48:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-08-22 06:48:27,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-08-22 06:48:27,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-08-22 06:48:27,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-08-22 06:48:27,621 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-08-22 06:48:27,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:48:27,622 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-08-22 06:48:27,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 06:48:27,622 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-08-22 06:48:27,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-22 06:48:27,624 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:48:27,625 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] [2020-08-22 06:48:27,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 06:48:27,625 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:48:27,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:48:27,626 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-08-22 06:48:27,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:48:27,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337333601] [2020-08-22 06:48:27,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:48:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:28,090 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 06:48:28,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:48:28,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:28,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:48:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:28,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:48:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:28,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 06:48:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:28,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:48:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:28,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 06:48:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:28,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 06:48:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:28,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:48:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 06:48:28,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337333601] [2020-08-22 06:48:28,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:48:28,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 06:48:28,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002758440] [2020-08-22 06:48:28,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 06:48:28,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:48:28,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 06:48:28,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-22 06:48:28,249 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-08-22 06:48:35,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:48:35,098 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-08-22 06:48:35,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 06:48:35,099 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-08-22 06:48:35,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:48:35,110 INFO L225 Difference]: With dead ends: 1674 [2020-08-22 06:48:35,111 INFO L226 Difference]: Without dead ends: 894 [2020-08-22 06:48:35,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:48:35,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-22 06:48:35,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-08-22 06:48:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-08-22 06:48:35,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-08-22 06:48:35,292 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-08-22 06:48:35,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:48:35,293 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-08-22 06:48:35,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 06:48:35,293 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-08-22 06:48:35,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-22 06:48:35,300 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:48:35,300 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] [2020-08-22 06:48:35,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 06:48:35,301 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:48:35,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:48:35,301 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-08-22 06:48:35,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:48:35,304 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [872021962] [2020-08-22 06:48:35,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:48:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:35,754 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 06:48:35,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:48:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:35,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:48:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:35,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:48:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:35,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 06:48:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:35,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:48:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:35,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 06:48:35,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:35,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 06:48:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:35,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:48:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:35,947 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 06:48:35,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [872021962] [2020-08-22 06:48:35,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:48:35,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 06:48:35,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630896020] [2020-08-22 06:48:35,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 06:48:35,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:48:35,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 06:48:35,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-22 06:48:35,954 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-08-22 06:48:46,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:48:46,725 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-08-22 06:48:46,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 06:48:46,728 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-08-22 06:48:46,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:48:46,734 INFO L225 Difference]: With dead ends: 1734 [2020-08-22 06:48:46,734 INFO L226 Difference]: Without dead ends: 924 [2020-08-22 06:48:46,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-08-22 06:48:46,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-08-22 06:48:46,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-08-22 06:48:46,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-22 06:48:46,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-08-22 06:48:46,844 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-08-22 06:48:46,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:48:46,845 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-08-22 06:48:46,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 06:48:46,845 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-08-22 06:48:46,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-22 06:48:46,846 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:48:46,846 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] [2020-08-22 06:48:46,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 06:48:46,847 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:48:46,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:48:46,847 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-08-22 06:48:46,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:48:46,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [273926217] [2020-08-22 06:48:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:48:46,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:47,324 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 06:48:47,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:48:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:47,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:48:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:47,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:48:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:47,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 06:48:47,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:47,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:48:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:47,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-22 06:48:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:47,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 06:48:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:47,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:48:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:47,513 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 06:48:47,513 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [273926217] [2020-08-22 06:48:47,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:48:47,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 06:48:47,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154539509] [2020-08-22 06:48:47,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 06:48:47,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:48:47,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 06:48:47,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-22 06:48:47,517 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-08-22 06:48:53,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:48:53,880 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-08-22 06:48:53,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 06:48:53,882 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-08-22 06:48:53,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:48:53,888 INFO L225 Difference]: With dead ends: 1794 [2020-08-22 06:48:53,889 INFO L226 Difference]: Without dead ends: 954 [2020-08-22 06:48:53,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-22 06:48:53,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-08-22 06:48:53,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-08-22 06:48:54,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-08-22 06:48:54,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-08-22 06:48:54,004 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-08-22 06:48:54,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:48:54,005 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-08-22 06:48:54,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 06:48:54,005 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-08-22 06:48:54,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-22 06:48:54,006 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:48:54,006 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] [2020-08-22 06:48:54,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 06:48:54,007 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:48:54,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:48:54,007 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-08-22 06:48:54,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:48:54,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412566986] [2020-08-22 06:48:54,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:48:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:54,604 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-22 06:48:54,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 06:48:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:54,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 06:48:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:54,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 06:48:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:54,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-22 06:48:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:54,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:48:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:54,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 06:48:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:54,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-22 06:48:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:54,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 06:48:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 06:48:54,906 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-22 06:48:54,907 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412566986] [2020-08-22 06:48:54,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 06:48:54,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 06:48:54,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066229408] [2020-08-22 06:48:54,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 06:48:54,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 06:48:54,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 06:48:54,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-22 06:48:54,910 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states. [2020-08-22 06:49:04,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 06:49:04,259 INFO L93 Difference]: Finished difference Result 1854 states and 2458 transitions. [2020-08-22 06:49:04,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 06:49:04,261 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2020-08-22 06:49:04,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 06:49:04,269 INFO L225 Difference]: With dead ends: 1854 [2020-08-22 06:49:04,270 INFO L226 Difference]: Without dead ends: 984 [2020-08-22 06:49:04,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 06:49:04,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-08-22 06:49:04,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 927. [2020-08-22 06:49:04,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-08-22 06:49:04,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1221 transitions. [2020-08-22 06:49:04,479 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1221 transitions. Word has length 73 [2020-08-22 06:49:04,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 06:49:04,483 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1221 transitions. [2020-08-22 06:49:04,483 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 06:49:04,483 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1221 transitions. [2020-08-22 06:49:04,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-08-22 06:49:04,485 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 06:49:04,485 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 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] [2020-08-22 06:49:04,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 06:49:04,486 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 06:49:04,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 06:49:04,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1523843977, now seen corresponding path program 5 times [2020-08-22 06:49:04,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 06:49:04,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1013379837] [2020-08-22 06:49:04,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 06:49:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat