/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 false -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 [2020-08-21 13:50:05,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 13:50:05,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 13:50:05,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 13:50:05,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 13:50:05,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 13:50:05,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 13:50:05,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 13:50:05,429 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 13:50:05,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 13:50:05,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 13:50:05,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 13:50:05,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 13:50:05,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 13:50:05,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 13:50:05,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 13:50:05,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 13:50:05,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 13:50:05,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 13:50:05,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 13:50:05,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 13:50:05,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 13:50:05,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 13:50:05,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 13:50:05,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 13:50:05,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 13:50:05,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 13:50:05,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 13:50:05,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 13:50:05,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 13:50:05,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 13:50:05,466 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 13:50:05,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 13:50:05,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 13:50:05,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 13:50:05,468 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 13:50:05,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 13:50:05,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 13:50:05,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 13:50:05,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 13:50:05,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 13:50:05,472 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 [2020-08-21 13:50:05,494 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 13:50:05,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 13:50:05,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 13:50:05,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 13:50:05,496 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 13:50:05,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 13:50:05,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 13:50:05,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 13:50:05,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 13:50:05,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 13:50:05,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 13:50:05,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 13:50:05,497 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 13:50:05,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 13:50:05,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 13:50:05,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 13:50:05,498 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 13:50:05,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 13:50:05,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 13:50:05,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 13:50:05,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 13:50:05,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 13:50:05,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 13:50:05,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 13:50:05,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 13:50:05,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 13:50:05,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-21 13:50:05,500 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 -> false [2020-08-21 13:50:05,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 13:50:05,812 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 13:50:05,815 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 13:50:05,817 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 13:50:05,817 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 13:50:05,818 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-21 13:50:05,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcf208cd9/e911298d5c3f440292e9c00f347e9abc/FLAGa910770b6 [2020-08-21 13:50:06,633 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 13:50:06,634 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-21 13:50:06,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcf208cd9/e911298d5c3f440292e9c00f347e9abc/FLAGa910770b6 [2020-08-21 13:50:06,749 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bcf208cd9/e911298d5c3f440292e9c00f347e9abc [2020-08-21 13:50:06,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 13:50:06,759 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 13:50:06,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 13:50:06,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 13:50:06,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 13:50:06,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:50:06" (1/1) ... [2020-08-21 13:50:06,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c2f0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:50:06, skipping insertion in model container [2020-08-21 13:50:06,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 01:50:06" (1/1) ... [2020-08-21 13:50:06,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 13:50:06,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 13:50:07,401 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-21 13:50:07,402 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] [2020-08-21 13:50:08,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:50:08,166 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 13:50:08,307 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-21 13:50:08,307 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] [2020-08-21 13:50:08,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 13:50:08,665 INFO L208 MainTranslator]: Completed translation [2020-08-21 13:50:08,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:50:08 WrapperNode [2020-08-21 13:50:08,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 13:50:08,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 13:50:08,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 13:50:08,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 13:50:08,683 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:50:08" (1/1) ... [2020-08-21 13:50:08,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:50:08" (1/1) ... [2020-08-21 13:50:08,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:50:08" (1/1) ... [2020-08-21 13:50:08,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:50:08" (1/1) ... [2020-08-21 13:50:08,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:50:08" (1/1) ... [2020-08-21 13:50:08,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:50:08" (1/1) ... [2020-08-21 13:50:08,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:50:08" (1/1) ... [2020-08-21 13:50:08,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 13:50:08,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 13:50:08,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 13:50:08,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 13:50:08,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:50:08" (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 [2020-08-21 13:50:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 13:50:09,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 13:50:09,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-21 13:50:09,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-08-21 13:50:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-21 13:50:09,006 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-21 13:50:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-08-21 13:50:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-08-21 13:50:09,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-08-21 13:50:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-08-21 13:50:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-21 13:50:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-21 13:50:09,010 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-21 13:50:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-21 13:50:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-21 13:50:09,014 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-21 13:50:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-21 13:50:09,015 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 13:50:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-21 13:50:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-21 13:50:09,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-21 13:50:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-21 13:50:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-21 13:50:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-21 13:50:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-21 13:50:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-21 13:50:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-21 13:50:09,017 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-21 13:50:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-08-21 13:50:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-08-21 13:50:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-08-21 13:50:09,018 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-08-21 13:50:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-08-21 13:50:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-08-21 13:50:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-08-21 13:50:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-08-21 13:50:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-08-21 13:50:09,019 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-08-21 13:50:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-08-21 13:50:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-08-21 13:50:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-08-21 13:50:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-08-21 13:50:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-08-21 13:50:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-08-21 13:50:09,020 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-08-21 13:50:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-08-21 13:50:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-08-21 13:50:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-08-21 13:50:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-08-21 13:50:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-08-21 13:50:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-08-21 13:50:09,021 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-08-21 13:50:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-08-21 13:50:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-08-21 13:50:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-08-21 13:50:09,022 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-08-21 13:50:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-08-21 13:50:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-08-21 13:50:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-08-21 13:50:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-08-21 13:50:09,023 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 13:50:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-21 13:50:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-21 13:50:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-21 13:50:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-21 13:50:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-21 13:50:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-21 13:50:09,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-21 13:50:09,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-08-21 13:50:09,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-08-21 13:50:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-08-21 13:50:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-08-21 13:50:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-08-21 13:50:09,026 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-08-21 13:50:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-08-21 13:50:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-08-21 13:50:09,027 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-08-21 13:50:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-08-21 13:50:09,028 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-08-21 13:50:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-08-21 13:50:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-08-21 13:50:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-21 13:50:09,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-08-21 13:50:09,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-21 13:50:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-21 13:50:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-21 13:50:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-21 13:50:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-21 13:50:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-21 13:50:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-08-21 13:50:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-08-21 13:50:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-21 13:50:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-21 13:50:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-21 13:50:09,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-21 13:50:09,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 13:50:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-21 13:50:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-21 13:50:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-08-21 13:50:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-08-21 13:50:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-08-21 13:50:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-21 13:50:09,033 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-08-21 13:50:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-21 13:50:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-08-21 13:50:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-08-21 13:50:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-08-21 13:50:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-08-21 13:50:09,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 13:50:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-21 13:50:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-21 13:50:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-21 13:50:09,035 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-21 13:50:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-21 13:50:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-21 13:50:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-21 13:50:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-21 13:50:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-21 13:50:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-21 13:50:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-21 13:50:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-21 13:50:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-21 13:50:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 13:50:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 13:50:09,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 13:50:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-21 13:50:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 13:50:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 13:50:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-21 13:50:09,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 13:50:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-21 13:50:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-21 13:50:09,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-21 13:50:09,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-21 13:50:09,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-21 13:50:09,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-21 13:50:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-21 13:50:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-08-21 13:50:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-08-21 13:50:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-08-21 13:50:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-21 13:50:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-21 13:50:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-21 13:50:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 13:50:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-08-21 13:50:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-08-21 13:50:09,053 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-08-21 13:50:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-08-21 13:50:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-08-21 13:50:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-08-21 13:50:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-08-21 13:50:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-08-21 13:50:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-08-21 13:50:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-08-21 13:50:09,054 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-08-21 13:50:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-08-21 13:50:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-08-21 13:50:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-08-21 13:50:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-08-21 13:50:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-08-21 13:50:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-08-21 13:50:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-08-21 13:50:09,055 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-21 13:50:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 13:50:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-08-21 13:50:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-08-21 13:50:09,057 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-08-21 13:50:09,058 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-21 13:50:09,058 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-08-21 13:50:09,058 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-08-21 13:50:09,058 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-08-21 13:50:09,058 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-08-21 13:50:09,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 13:50:09,058 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-08-21 13:50:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-08-21 13:50:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-08-21 13:50:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-08-21 13:50:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 13:50:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 13:50:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-08-21 13:50:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-08-21 13:50:09,059 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-08-21 13:50:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-08-21 13:50:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-08-21 13:50:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-08-21 13:50:09,060 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-08-21 13:50:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-08-21 13:50:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-08-21 13:50:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-08-21 13:50:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-08-21 13:50:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-08-21 13:50:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-08-21 13:50:09,061 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-08-21 13:50:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-21 13:50:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-21 13:50:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-21 13:50:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-08-21 13:50:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 13:50:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-21 13:50:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-21 13:50:09,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-21 13:50:09,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-21 13:50:09,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-21 13:50:09,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-21 13:50:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 13:50:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 13:50:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 13:50:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-21 13:50:09,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 13:50:09,923 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-21 13:50:11,607 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 13:50:11,608 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 13:50:11,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:50:11 BoogieIcfgContainer [2020-08-21 13:50:11,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 13:50:11,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 13:50:11,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 13:50:11,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 13:50:11,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 01:50:06" (1/3) ... [2020-08-21 13:50:11,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d89de63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:50:11, skipping insertion in model container [2020-08-21 13:50:11,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 01:50:08" (2/3) ... [2020-08-21 13:50:11,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d89de63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 01:50:11, skipping insertion in model container [2020-08-21 13:50:11,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 01:50:11" (3/3) ... [2020-08-21 13:50:11,626 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 [2020-08-21 13:50:11,636 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 13:50:11,645 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 13:50:11,659 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 13:50:11,686 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 13:50:11,687 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 13:50:11,687 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 13:50:11,687 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 13:50:11,687 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 13:50:11,687 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 13:50:11,687 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 13:50:11,687 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 13:50:11,723 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-08-21 13:50:11,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-21 13:50:11,731 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:50:11,732 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] [2020-08-21 13:50:11,732 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:50:11,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:50:11,739 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-08-21 13:50:11,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:50:11,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [212864694] [2020-08-21 13:50:11,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:50:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:12,766 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 13:50:12,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:50:12,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:12,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:50:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:12,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:50:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:12,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 13:50:12,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [212864694] [2020-08-21 13:50:12,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:50:12,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 13:50:12,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659032912] [2020-08-21 13:50:12,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 13:50:12,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:50:12,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 13:50:12,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 13:50:12,899 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-08-21 13:50:13,737 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-08-21 13:50:21,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:50:21,282 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-08-21 13:50:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 13:50:21,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-08-21 13:50:21,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:50:21,312 INFO L225 Difference]: With dead ends: 1648 [2020-08-21 13:50:21,312 INFO L226 Difference]: Without dead ends: 834 [2020-08-21 13:50:21,323 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 [2020-08-21 13:50:21,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-21 13:50:21,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-08-21 13:50:21,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-21 13:50:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-08-21 13:50:21,604 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-08-21 13:50:21,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:50:21,605 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-08-21 13:50:21,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 13:50:21,606 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-08-21 13:50:21,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-21 13:50:21,609 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:50:21,609 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] [2020-08-21 13:50:21,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 13:50:21,610 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:50:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:50:21,610 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-08-21 13:50:21,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:50:21,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299823493] [2020-08-21 13:50:21,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:50:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:22,228 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 13:50:22,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:50:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:22,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:50:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:22,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:50:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:22,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 13:50:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:22,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:50:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:22,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 13:50:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:22,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 13:50:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:22,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:50:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:22,380 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 13:50:22,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299823493] [2020-08-21 13:50:22,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 13:50:22,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 13:50:22,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664257754] [2020-08-21 13:50:22,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 13:50:22,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:50:22,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 13:50:22,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-21 13:50:22,384 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-08-21 13:50:28,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:50:28,031 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-08-21 13:50:28,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 13:50:28,033 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-21 13:50:28,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:50:28,040 INFO L225 Difference]: With dead ends: 1640 [2020-08-21 13:50:28,040 INFO L226 Difference]: Without dead ends: 864 [2020-08-21 13:50:28,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:50:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-08-21 13:50:28,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-08-21 13:50:28,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-08-21 13:50:28,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-08-21 13:50:28,230 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-08-21 13:50:28,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:50:28,230 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-08-21 13:50:28,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 13:50:28,231 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-08-21 13:50:28,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-21 13:50:28,233 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:50:28,234 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] [2020-08-21 13:50:28,234 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 13:50:28,234 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:50:28,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:50:28,235 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-08-21 13:50:28,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:50:28,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833563167] [2020-08-21 13:50:28,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:50:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:28,723 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 13:50:28,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:50:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:28,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:50:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:28,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:50:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:28,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 13:50:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:28,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:50:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 13:50:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:28,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-21 13:50:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:28,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:50:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 13:50:28,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833563167] [2020-08-21 13:50:28,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:50:28,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 13:50:28,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296004909] [2020-08-21 13:50:28,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 13:50:28,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:50:28,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 13:50:28,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-21 13:50:28,954 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-08-21 13:50:36,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:50:36,694 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-08-21 13:50:36,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 13:50:36,696 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-08-21 13:50:36,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:50:36,703 INFO L225 Difference]: With dead ends: 1674 [2020-08-21 13:50:36,703 INFO L226 Difference]: Without dead ends: 894 [2020-08-21 13:50:36,707 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 [2020-08-21 13:50:36,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-21 13:50:36,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-08-21 13:50:36,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-08-21 13:50:36,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-08-21 13:50:36,875 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-08-21 13:50:36,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:50:36,876 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-08-21 13:50:36,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 13:50:36,876 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-08-21 13:50:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-21 13:50:36,887 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:50:36,887 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] [2020-08-21 13:50:36,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 13:50:36,888 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:50:36,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:50:36,888 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-08-21 13:50:36,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:50:36,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542114642] [2020-08-21 13:50:36,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:50:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:37,393 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 13:50:37,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:50:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:37,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:50:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:37,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:50:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:37,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 13:50:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:37,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:50:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:37,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 13:50:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:37,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 13:50:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:37,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:50:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:37,607 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 13:50:37,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542114642] [2020-08-21 13:50:37,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:50:37,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 13:50:37,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306104448] [2020-08-21 13:50:37,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 13:50:37,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:50:37,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 13:50:37,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 13:50:37,615 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-08-21 13:50:45,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:50:45,806 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-08-21 13:50:45,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 13:50:45,807 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-08-21 13:50:45,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:50:45,814 INFO L225 Difference]: With dead ends: 1734 [2020-08-21 13:50:45,814 INFO L226 Difference]: Without dead ends: 924 [2020-08-21 13:50:45,818 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 [2020-08-21 13:50:45,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-08-21 13:50:45,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-08-21 13:50:45,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-21 13:50:45,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-08-21 13:50:45,933 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-08-21 13:50:45,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:50:45,934 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-08-21 13:50:45,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 13:50:45,934 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-08-21 13:50:45,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-21 13:50:45,935 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:50:45,936 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] [2020-08-21 13:50:45,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 13:50:45,936 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:50:45,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:50:45,936 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-08-21 13:50:45,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:50:45,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751383741] [2020-08-21 13:50:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:50:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:46,382 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 13:50:46,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:50:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:46,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:50:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:46,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:50:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:46,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 13:50:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:46,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:50:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:46,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 13:50:46,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:46,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 13:50:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:46,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:50:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:46,587 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 13:50:46,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751383741] [2020-08-21 13:50:46,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:50:46,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 13:50:46,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059513629] [2020-08-21 13:50:46,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 13:50:46,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:50:46,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 13:50:46,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-21 13:50:46,590 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-08-21 13:50:53,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 13:50:53,476 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-08-21 13:50:53,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 13:50:53,479 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-08-21 13:50:53,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 13:50:53,485 INFO L225 Difference]: With dead ends: 1794 [2020-08-21 13:50:53,485 INFO L226 Difference]: Without dead ends: 954 [2020-08-21 13:50:53,488 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 [2020-08-21 13:50:53,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-08-21 13:50:53,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-08-21 13:50:53,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-08-21 13:50:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-08-21 13:50:53,609 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-08-21 13:50:53,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 13:50:53,609 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-08-21 13:50:53,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 13:50:53,610 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-08-21 13:50:53,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-21 13:50:53,611 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 13:50:53,611 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] [2020-08-21 13:50:53,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 13:50:53,612 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 13:50:53,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 13:50:53,612 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-08-21 13:50:53,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 13:50:53,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779937379] [2020-08-21 13:50:53,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 13:50:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:54,056 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 13:50:54,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 13:50:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:54,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 13:50:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:54,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 13:50:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:54,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 13:50:54,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:54,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:50:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:54,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 13:50:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:54,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-21 13:50:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:54,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 13:50:54,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 13:50:54,303 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-21 13:50:54,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779937379] [2020-08-21 13:50:54,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 13:50:54,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 13:50:54,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638930309] [2020-08-21 13:50:54,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 13:50:54,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 13:50:54,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 13:50:54,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-21 13:50:54,307 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states.