/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --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 [2020-08-21 23:30:24,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 23:30:24,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 23:30:24,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 23:30:24,904 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 23:30:24,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 23:30:24,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 23:30:24,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 23:30:24,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 23:30:24,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 23:30:24,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 23:30:24,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 23:30:24,928 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 23:30:24,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 23:30:24,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 23:30:24,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 23:30:24,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 23:30:24,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 23:30:24,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 23:30:24,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 23:30:24,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 23:30:24,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 23:30:24,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 23:30:24,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 23:30:24,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 23:30:24,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 23:30:24,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 23:30:24,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 23:30:24,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 23:30:24,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 23:30:24,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 23:30:24,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 23:30:24,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 23:30:24,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 23:30:24,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 23:30:24,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 23:30:24,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 23:30:24,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 23:30:24,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 23:30:24,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 23:30:24,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 23:30:24,993 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 23:30:25,032 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 23:30:25,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 23:30:25,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 23:30:25,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 23:30:25,034 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 23:30:25,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 23:30:25,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 23:30:25,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 23:30:25,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 23:30:25,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 23:30:25,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 23:30:25,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 23:30:25,036 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 23:30:25,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 23:30:25,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 23:30:25,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 23:30:25,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 23:30:25,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 23:30:25,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 23:30:25,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 23:30:25,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 23:30:25,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 23:30:25,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 23:30:25,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 23:30:25,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 23:30:25,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 23:30:25,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-21 23:30:25,039 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=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-08-21 23:30:25,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 23:30:25,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 23:30:25,368 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 23:30:25,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 23:30:25,371 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 23:30:25,372 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-21 23:30:25,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0cd48fdf/cadbb6c0c91b4c37b019e3f2970f3669/FLAGb388940be [2020-08-21 23:30:26,210 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 23:30:26,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-21 23:30:26,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0cd48fdf/cadbb6c0c91b4c37b019e3f2970f3669/FLAGb388940be [2020-08-21 23:30:26,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f0cd48fdf/cadbb6c0c91b4c37b019e3f2970f3669 [2020-08-21 23:30:26,306 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 23:30:26,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 23:30:26,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 23:30:26,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 23:30:26,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 23:30:26,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:30:26" (1/1) ... [2020-08-21 23:30:26,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30829a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:30:26, skipping insertion in model container [2020-08-21 23:30:26,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:30:26" (1/1) ... [2020-08-21 23:30:26,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 23:30:26,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 23:30:26,943 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 23:30:26,943 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 23:30:27,472 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:30:27,512 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 23:30:27,619 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 23:30:27,620 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 23:30:27,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 23:30:27,923 INFO L208 MainTranslator]: Completed translation [2020-08-21 23:30:27,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:30:27 WrapperNode [2020-08-21 23:30:27,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 23:30:27,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 23:30:27,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 23:30:27,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 23:30:27,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:30:27" (1/1) ... [2020-08-21 23:30:27,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:30:27" (1/1) ... [2020-08-21 23:30:27,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:30:27" (1/1) ... [2020-08-21 23:30:27,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:30:27" (1/1) ... [2020-08-21 23:30:28,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:30:27" (1/1) ... [2020-08-21 23:30:28,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:30:27" (1/1) ... [2020-08-21 23:30:28,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:30:27" (1/1) ... [2020-08-21 23:30:28,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 23:30:28,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 23:30:28,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 23:30:28,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 23:30:28,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:30:27" (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 23:30:28,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 23:30:28,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 23:30:28,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-21 23:30:28,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-08-21 23:30:28,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-21 23:30:28,365 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-21 23:30:28,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-08-21 23:30:28,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-08-21 23:30:28,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-08-21 23:30:28,366 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-08-21 23:30:28,367 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-21 23:30:28,367 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-21 23:30:28,367 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-21 23:30:28,369 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-21 23:30:28,370 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-21 23:30:28,370 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-21 23:30:28,370 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-21 23:30:28,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 23:30:28,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-21 23:30:28,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-21 23:30:28,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-21 23:30:28,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-21 23:30:28,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-21 23:30:28,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-21 23:30:28,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-21 23:30:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-21 23:30:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-21 23:30:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-21 23:30:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-08-21 23:30:28,375 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-08-21 23:30:28,375 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-08-21 23:30:28,375 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-08-21 23:30:28,375 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-08-21 23:30:28,375 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-08-21 23:30:28,376 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-08-21 23:30:28,376 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-08-21 23:30:28,376 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-08-21 23:30:28,376 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-08-21 23:30:28,377 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-08-21 23:30:28,377 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-08-21 23:30:28,377 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-08-21 23:30:28,377 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-08-21 23:30:28,377 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-08-21 23:30:28,378 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-08-21 23:30:28,378 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-08-21 23:30:28,378 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-08-21 23:30:28,378 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-08-21 23:30:28,378 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-08-21 23:30:28,379 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-08-21 23:30:28,379 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-08-21 23:30:28,379 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-08-21 23:30:28,380 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-08-21 23:30:28,380 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-08-21 23:30:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-08-21 23:30:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-08-21 23:30:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-08-21 23:30:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-08-21 23:30:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-08-21 23:30:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-08-21 23:30:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-08-21 23:30:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 23:30:28,382 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-21 23:30:28,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-21 23:30:28,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-21 23:30:28,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-21 23:30:28,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-21 23:30:28,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-21 23:30:28,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-21 23:30:28,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-08-21 23:30:28,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-08-21 23:30:28,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-08-21 23:30:28,386 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-08-21 23:30:28,386 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-08-21 23:30:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-08-21 23:30:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-08-21 23:30:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-08-21 23:30:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-08-21 23:30:28,388 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-08-21 23:30:28,388 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-08-21 23:30:28,388 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-08-21 23:30:28,388 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-08-21 23:30:28,389 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-21 23:30:28,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-08-21 23:30:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-21 23:30:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-21 23:30:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-21 23:30:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-21 23:30:28,390 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-21 23:30:28,391 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-21 23:30:28,391 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-08-21 23:30:28,391 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-08-21 23:30:28,391 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-21 23:30:28,391 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-21 23:30:28,392 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-21 23:30:28,392 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-21 23:30:28,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 23:30:28,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-21 23:30:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-21 23:30:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-08-21 23:30:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-08-21 23:30:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-08-21 23:30:28,393 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-21 23:30:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-08-21 23:30:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-21 23:30:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-08-21 23:30:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-08-21 23:30:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-08-21 23:30:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-08-21 23:30:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 23:30:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-21 23:30:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-21 23:30:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-21 23:30:28,396 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-21 23:30:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-21 23:30:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-21 23:30:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-21 23:30:28,397 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-21 23:30:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-21 23:30:28,398 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-21 23:30:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-21 23:30:28,399 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-21 23:30:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-21 23:30:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 23:30:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 23:30:28,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 23:30:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-21 23:30:28,401 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 23:30:28,402 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 23:30:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-21 23:30:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 23:30:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-21 23:30:28,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-21 23:30:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-21 23:30:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-21 23:30:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-21 23:30:28,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-21 23:30:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-21 23:30:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-08-21 23:30:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-08-21 23:30:28,408 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-08-21 23:30:28,409 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-21 23:30:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-21 23:30:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-21 23:30:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 23:30:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-08-21 23:30:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-08-21 23:30:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-08-21 23:30:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-08-21 23:30:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-08-21 23:30:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-08-21 23:30:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-08-21 23:30:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-08-21 23:30:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-08-21 23:30:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-08-21 23:30:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-08-21 23:30:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-08-21 23:30:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-08-21 23:30:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-08-21 23:30:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-08-21 23:30:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-08-21 23:30:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-08-21 23:30:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-08-21 23:30:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-21 23:30:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 23:30:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-08-21 23:30:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-08-21 23:30:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-08-21 23:30:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-21 23:30:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-08-21 23:30:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-08-21 23:30:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-08-21 23:30:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-08-21 23:30:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 23:30:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-08-21 23:30:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-08-21 23:30:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-08-21 23:30:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-08-21 23:30:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 23:30:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 23:30:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-08-21 23:30:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-08-21 23:30:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-08-21 23:30:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-08-21 23:30:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-08-21 23:30:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-08-21 23:30:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-08-21 23:30:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-08-21 23:30:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-08-21 23:30:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-08-21 23:30:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-08-21 23:30:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-08-21 23:30:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-08-21 23:30:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-08-21 23:30:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-21 23:30:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-21 23:30:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-21 23:30:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-08-21 23:30:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 23:30:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-21 23:30:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-21 23:30:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-21 23:30:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-21 23:30:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-21 23:30:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-21 23:30:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 23:30:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 23:30:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 23:30:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-21 23:30:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 23:30:29,317 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-21 23:30:31,146 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 23:30:31,146 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 23:30:31,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:30:31 BoogieIcfgContainer [2020-08-21 23:30:31,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 23:30:31,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 23:30:31,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 23:30:31,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 23:30:31,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:30:26" (1/3) ... [2020-08-21 23:30:31,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5fcbc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:30:31, skipping insertion in model container [2020-08-21 23:30:31,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:30:27" (2/3) ... [2020-08-21 23:30:31,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5fcbc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:30:31, skipping insertion in model container [2020-08-21 23:30:31,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:30:31" (3/3) ... [2020-08-21 23:30:31,167 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 23:30:31,178 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 23:30:31,187 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 23:30:31,200 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 23:30:31,228 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 23:30:31,229 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 23:30:31,229 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 23:30:31,229 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 23:30:31,229 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 23:30:31,229 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 23:30:31,229 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 23:30:31,230 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 23:30:31,267 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-08-21 23:30:31,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-21 23:30:31,275 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:30:31,276 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 23:30:31,277 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:30:31,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:30:31,282 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-08-21 23:30:31,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:30:31,292 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853860375] [2020-08-21 23:30:31,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:30:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:32,446 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 23:30:32,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:30:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:32,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:30:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:32,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:30:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:32,580 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 23:30:32,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853860375] [2020-08-21 23:30:32,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:30:32,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 23:30:32,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975215792] [2020-08-21 23:30:32,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 23:30:32,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:30:32,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 23:30:32,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 23:30:32,608 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-08-21 23:30:33,468 WARN L193 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-08-21 23:30:41,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:30:41,861 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-08-21 23:30:41,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:30:41,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-08-21 23:30:41,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:30:41,890 INFO L225 Difference]: With dead ends: 1648 [2020-08-21 23:30:41,891 INFO L226 Difference]: Without dead ends: 834 [2020-08-21 23:30:41,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:30:41,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-21 23:30:42,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-08-21 23:30:42,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-21 23:30:42,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-08-21 23:30:42,141 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-08-21 23:30:42,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:30:42,142 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-08-21 23:30:42,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 23:30:42,142 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-08-21 23:30:42,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-21 23:30:42,145 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:30:42,146 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 23:30:42,146 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 23:30:42,146 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:30:42,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:30:42,147 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-08-21 23:30:42,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:30:42,147 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027092944] [2020-08-21 23:30:42,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:30:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:42,866 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 23:30:42,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:30:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:42,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:30:42,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:42,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:30:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:43,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 23:30:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:43,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:30:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:43,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 23:30:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:43,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 23:30:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:43,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:30:43,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:43,102 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 23:30:43,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027092944] [2020-08-21 23:30:43,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 23:30:43,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 23:30:43,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667085468] [2020-08-21 23:30:43,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 23:30:43,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:30:43,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 23:30:43,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-21 23:30:43,107 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-08-21 23:30:49,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:30:49,650 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-08-21 23:30:49,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 23:30:49,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-21 23:30:49,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:30:49,659 INFO L225 Difference]: With dead ends: 1640 [2020-08-21 23:30:49,659 INFO L226 Difference]: Without dead ends: 864 [2020-08-21 23:30:49,663 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:30:49,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-08-21 23:30:49,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-08-21 23:30:49,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-08-21 23:30:49,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-08-21 23:30:49,782 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-08-21 23:30:49,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:30:49,783 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-08-21 23:30:49,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 23:30:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-08-21 23:30:49,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-21 23:30:49,786 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:30:49,786 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 23:30:49,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 23:30:49,787 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:30:49,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:30:49,787 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-08-21 23:30:49,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:30:49,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934262563] [2020-08-21 23:30:49,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:30:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:50,377 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 23:30:50,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:30:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:50,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:30:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:50,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:30:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:50,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 23:30:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:50,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:30:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:50,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 23:30:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:50,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-21 23:30:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:50,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:30:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:50,604 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 23:30:50,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934262563] [2020-08-21 23:30:50,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:30:50,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 23:30:50,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738240488] [2020-08-21 23:30:50,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 23:30:50,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:30:50,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 23:30:50,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-21 23:30:50,607 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-08-21 23:30:58,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:30:58,386 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-08-21 23:30:58,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 23:30:58,389 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-08-21 23:30:58,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:30:58,396 INFO L225 Difference]: With dead ends: 1674 [2020-08-21 23:30:58,396 INFO L226 Difference]: Without dead ends: 894 [2020-08-21 23:30:58,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:30:58,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-21 23:30:58,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-08-21 23:30:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-08-21 23:30:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-08-21 23:30:58,593 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-08-21 23:30:58,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:30:58,594 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-08-21 23:30:58,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 23:30:58,594 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-08-21 23:30:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-21 23:30:58,604 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:30:58,605 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 23:30:58,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 23:30:58,605 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:30:58,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:30:58,606 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-08-21 23:30:58,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:30:58,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308366125] [2020-08-21 23:30:58,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:30:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:59,258 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 23:30:59,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:30:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:59,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:30:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:59,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:30:59,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:59,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 23:30:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:59,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:30:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:59,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 23:30:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:59,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 23:30:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:59,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:30:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:30:59,480 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 23:30:59,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308366125] [2020-08-21 23:30:59,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:30:59,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 23:30:59,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45334363] [2020-08-21 23:30:59,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 23:30:59,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:30:59,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 23:30:59,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 23:30:59,488 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-08-21 23:31:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:31:08,828 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-08-21 23:31:08,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 23:31:08,830 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-08-21 23:31:08,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:31:08,840 INFO L225 Difference]: With dead ends: 1734 [2020-08-21 23:31:08,840 INFO L226 Difference]: Without dead ends: 924 [2020-08-21 23:31:08,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:31:08,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-08-21 23:31:09,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-08-21 23:31:09,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-21 23:31:09,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-08-21 23:31:09,011 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-08-21 23:31:09,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:31:09,013 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-08-21 23:31:09,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 23:31:09,013 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-08-21 23:31:09,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-21 23:31:09,015 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:31:09,016 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 23:31:09,016 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 23:31:09,016 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:31:09,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:31:09,017 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-08-21 23:31:09,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:31:09,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [449237627] [2020-08-21 23:31:09,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:31:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:09,637 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 23:31:09,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:31:09,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:09,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:31:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:09,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:31:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:09,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 23:31:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:09,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:31:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:09,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 23:31:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:09,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 23:31:09,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:09,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:31:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:09,853 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 23:31:09,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [449237627] [2020-08-21 23:31:09,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:31:09,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 23:31:09,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115613274] [2020-08-21 23:31:09,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 23:31:09,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:31:09,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 23:31:09,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-21 23:31:09,856 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-08-21 23:31:17,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 23:31:17,268 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-08-21 23:31:17,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 23:31:17,271 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-08-21 23:31:17,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 23:31:17,278 INFO L225 Difference]: With dead ends: 1794 [2020-08-21 23:31:17,278 INFO L226 Difference]: Without dead ends: 954 [2020-08-21 23:31:17,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-21 23:31:17,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-08-21 23:31:17,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-08-21 23:31:17,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-08-21 23:31:17,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-08-21 23:31:17,400 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-08-21 23:31:17,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 23:31:17,401 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-08-21 23:31:17,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 23:31:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-08-21 23:31:17,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-21 23:31:17,403 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 23:31:17,403 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 23:31:17,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 23:31:17,404 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 23:31:17,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 23:31:17,404 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-08-21 23:31:17,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 23:31:17,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696049367] [2020-08-21 23:31:17,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 23:31:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:18,019 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 23:31:18,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 23:31:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:18,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 23:31:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:18,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 23:31:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:18,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 23:31:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:18,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:31:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:18,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 23:31:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:18,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-21 23:31:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:18,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 23:31:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 23:31:18,250 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 23:31:18,251 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696049367] [2020-08-21 23:31:18,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 23:31:18,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 23:31:18,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208529133] [2020-08-21 23:31:18,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 23:31:18,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 23:31:18,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 23:31:18,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-21 23:31:18,253 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states.