/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 0.1.25-5644d1e-m [2020-08-18 11:03:07,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 11:03:07,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 11:03:07,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 11:03:07,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 11:03:07,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 11:03:07,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 11:03:07,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 11:03:07,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 11:03:07,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 11:03:07,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 11:03:07,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 11:03:07,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 11:03:07,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 11:03:07,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 11:03:07,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 11:03:07,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 11:03:07,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 11:03:07,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 11:03:07,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 11:03:07,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 11:03:07,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 11:03:07,898 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 11:03:07,899 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 11:03:07,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 11:03:07,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 11:03:07,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 11:03:07,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 11:03:07,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 11:03:07,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 11:03:07,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 11:03:07,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 11:03:07,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 11:03:07,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 11:03:07,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 11:03:07,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 11:03:07,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 11:03:07,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 11:03:07,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 11:03:07,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 11:03:07,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 11:03:07,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-08-18 11:03:07,968 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 11:03:07,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 11:03:07,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 11:03:07,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 11:03:07,971 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 11:03:07,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 11:03:07,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 11:03:07,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 11:03:07,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 11:03:07,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 11:03:07,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 11:03:07,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 11:03:07,974 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 11:03:07,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 11:03:07,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 11:03:07,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 11:03:07,975 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 11:03:07,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 11:03:07,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 11:03:07,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 11:03:07,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 11:03:07,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 11:03:07,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 11:03:07,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 11:03:07,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 11:03:07,977 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 11:03:07,977 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-18 11:03:07,977 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 [2020-08-18 11:03:08,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 11:03:08,293 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 11:03:08,296 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 11:03:08,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 11:03:08,298 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 11:03:08,299 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-18 11:03:08,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc0400d87/aa2a1b4f1a5c4dc991eab9d2b4453ef7/FLAG9841c4541 [2020-08-18 11:03:09,023 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 11:03:09,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-18 11:03:09,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc0400d87/aa2a1b4f1a5c4dc991eab9d2b4453ef7/FLAG9841c4541 [2020-08-18 11:03:09,160 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/dc0400d87/aa2a1b4f1a5c4dc991eab9d2b4453ef7 [2020-08-18 11:03:09,168 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 11:03:09,170 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 11:03:09,171 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 11:03:09,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 11:03:09,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 11:03:09,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:03:09" (1/1) ... [2020-08-18 11:03:09,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b7bcd2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:03:09, skipping insertion in model container [2020-08-18 11:03:09,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:03:09" (1/1) ... [2020-08-18 11:03:09,186 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 11:03:09,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 11:03:09,748 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-18 11:03:09,749 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2540-2541] [2020-08-18 11:03:10,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 11:03:10,433 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 11:03:10,514 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2539] [2020-08-18 11:03:10,514 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2540-2541] [2020-08-18 11:03:10,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 11:03:10,785 INFO L208 MainTranslator]: Completed translation [2020-08-18 11:03:10,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:03:10 WrapperNode [2020-08-18 11:03:10,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 11:03:10,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 11:03:10,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 11:03:10,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 11:03:10,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:03:10" (1/1) ... [2020-08-18 11:03:10,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:03:10" (1/1) ... [2020-08-18 11:03:10,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:03:10" (1/1) ... [2020-08-18 11:03:10,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:03:10" (1/1) ... [2020-08-18 11:03:11,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:03:10" (1/1) ... [2020-08-18 11:03:11,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:03:10" (1/1) ... [2020-08-18 11:03:11,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:03:10" (1/1) ... [2020-08-18 11:03:11,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 11:03:11,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 11:03:11,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 11:03:11,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 11:03:11,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:03:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 11:03:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 11:03:11,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 11:03:11,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-18 11:03:11,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-08-18 11:03:11,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-18 11:03:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-18 11:03:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-08-18 11:03:11,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-08-18 11:03:11,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-08-18 11:03:11,267 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-08-18 11:03:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-18 11:03:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-18 11:03:11,268 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-18 11:03:11,271 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-18 11:03:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-18 11:03:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-18 11:03:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-18 11:03:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 11:03:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-18 11:03:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-18 11:03:11,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-18 11:03:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-18 11:03:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-18 11:03:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-18 11:03:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-18 11:03:11,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-18 11:03:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-18 11:03:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-18 11:03:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-08-18 11:03:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-08-18 11:03:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-08-18 11:03:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-08-18 11:03:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-08-18 11:03:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-08-18 11:03:11,277 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-08-18 11:03:11,277 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-08-18 11:03:11,277 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-08-18 11:03:11,277 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-08-18 11:03:11,278 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-08-18 11:03:11,278 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-08-18 11:03:11,278 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-08-18 11:03:11,278 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-08-18 11:03:11,278 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-08-18 11:03:11,279 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-08-18 11:03:11,279 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-08-18 11:03:11,279 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-08-18 11:03:11,279 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-08-18 11:03:11,279 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-08-18 11:03:11,280 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-08-18 11:03:11,280 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-08-18 11:03:11,280 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-08-18 11:03:11,280 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-08-18 11:03:11,280 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-08-18 11:03:11,281 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-08-18 11:03:11,281 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-08-18 11:03:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-08-18 11:03:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-08-18 11:03:11,282 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-08-18 11:03:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-08-18 11:03:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-08-18 11:03:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 11:03:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-18 11:03:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-18 11:03:11,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-18 11:03:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-18 11:03:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-18 11:03:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-18 11:03:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-18 11:03:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-08-18 11:03:11,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-08-18 11:03:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-08-18 11:03:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-08-18 11:03:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-08-18 11:03:11,286 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-08-18 11:03:11,287 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-08-18 11:03:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-08-18 11:03:11,288 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-08-18 11:03:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-08-18 11:03:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-08-18 11:03:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-08-18 11:03:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-08-18 11:03:11,289 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-18 11:03:11,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-08-18 11:03:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-18 11:03:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-18 11:03:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-18 11:03:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-18 11:03:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-18 11:03:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-18 11:03:11,291 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-08-18 11:03:11,292 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-08-18 11:03:11,292 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-18 11:03:11,293 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-18 11:03:11,293 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-18 11:03:11,293 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-18 11:03:11,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 11:03:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-18 11:03:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-18 11:03:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-08-18 11:03:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-08-18 11:03:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-08-18 11:03:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-18 11:03:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-08-18 11:03:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-18 11:03:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-08-18 11:03:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-08-18 11:03:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-08-18 11:03:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-08-18 11:03:11,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 11:03:11,297 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-18 11:03:11,297 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-18 11:03:11,298 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-18 11:03:11,298 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-18 11:03:11,298 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-18 11:03:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-18 11:03:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-18 11:03:11,299 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-18 11:03:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-18 11:03:11,300 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-18 11:03:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-18 11:03:11,301 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-18 11:03:11,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-18 11:03:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 11:03:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 11:03:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 11:03:11,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-18 11:03:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 11:03:11,305 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 11:03:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-18 11:03:11,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 11:03:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-18 11:03:11,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-18 11:03:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-18 11:03:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-18 11:03:11,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-18 11:03:11,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-18 11:03:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-18 11:03:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-08-18 11:03:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-08-18 11:03:11,314 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-08-18 11:03:11,315 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-18 11:03:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-18 11:03:11,324 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-18 11:03:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 11:03:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-08-18 11:03:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-08-18 11:03:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-08-18 11:03:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-08-18 11:03:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-08-18 11:03:11,325 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-08-18 11:03:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-08-18 11:03:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-08-18 11:03:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-08-18 11:03:11,326 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-08-18 11:03:11,327 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-08-18 11:03:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-08-18 11:03:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-08-18 11:03:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-08-18 11:03:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-08-18 11:03:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-08-18 11:03:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-08-18 11:03:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-08-18 11:03:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-18 11:03:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 11:03:11,330 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-08-18 11:03:11,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-08-18 11:03:11,330 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-08-18 11:03:11,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-18 11:03:11,330 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-08-18 11:03:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-08-18 11:03:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-08-18 11:03:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-08-18 11:03:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 11:03:11,331 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-08-18 11:03:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-08-18 11:03:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-08-18 11:03:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-08-18 11:03:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 11:03:11,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 11:03:11,333 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-08-18 11:03:11,333 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-08-18 11:03:11,333 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-08-18 11:03:11,333 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-08-18 11:03:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-08-18 11:03:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-08-18 11:03:11,334 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-08-18 11:03:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-08-18 11:03:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-08-18 11:03:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-08-18 11:03:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-08-18 11:03:11,335 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-08-18 11:03:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-08-18 11:03:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-08-18 11:03:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-18 11:03:11,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-18 11:03:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-18 11:03:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-08-18 11:03:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 11:03:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-18 11:03:11,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-18 11:03:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-18 11:03:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-18 11:03:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-18 11:03:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-18 11:03:11,338 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 11:03:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 11:03:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 11:03:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-18 11:03:11,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 11:03:12,302 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-18 11:03:14,008 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 11:03:14,008 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-18 11:03:14,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:03:14 BoogieIcfgContainer [2020-08-18 11:03:14,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 11:03:14,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 11:03:14,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 11:03:14,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 11:03:14,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:03:09" (1/3) ... [2020-08-18 11:03:14,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e5b3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:03:14, skipping insertion in model container [2020-08-18 11:03:14,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:03:10" (2/3) ... [2020-08-18 11:03:14,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e5b3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:03:14, skipping insertion in model container [2020-08-18 11:03:14,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:03:14" (3/3) ... [2020-08-18 11:03:14,029 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-18 11:03:14,039 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 11:03:14,048 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 11:03:14,061 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 11:03:14,092 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 11:03:14,092 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 11:03:14,092 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 11:03:14,092 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 11:03:14,092 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 11:03:14,092 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 11:03:14,093 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 11:03:14,093 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 11:03:14,136 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-08-18 11:03:14,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-18 11:03:14,144 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:03:14,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:03:14,145 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:03:14,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:03:14,151 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-08-18 11:03:14,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:03:14,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1777905741] [2020-08-18 11:03:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:03:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:15,183 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 11:03:15,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:03:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:15,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:03:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:15,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:03:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:15,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 11:03:15,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1777905741] [2020-08-18 11:03:15,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:03:15,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 11:03:15,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894823725] [2020-08-18 11:03:15,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 11:03:15,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:03:15,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 11:03:15,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-18 11:03:15,297 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-08-18 11:03:16,307 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-08-18 11:03:24,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:03:24,315 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-08-18 11:03:24,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 11:03:24,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-08-18 11:03:24,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:03:24,341 INFO L225 Difference]: With dead ends: 1648 [2020-08-18 11:03:24,342 INFO L226 Difference]: Without dead ends: 834 [2020-08-18 11:03:24,352 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 [2020-08-18 11:03:24,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-18 11:03:24,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-08-18 11:03:24,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-18 11:03:24,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-08-18 11:03:24,632 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-08-18 11:03:24,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:03:24,633 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-08-18 11:03:24,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 11:03:24,633 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-08-18 11:03:24,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-18 11:03:24,639 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:03:24,639 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:03:24,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 11:03:24,640 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:03:24,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:03:24,640 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-08-18 11:03:24,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:03:24,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106180462] [2020-08-18 11:03:24,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:03:24,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:25,252 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 11:03:25,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:03:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:25,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:03:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:25,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:03:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:25,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 11:03:25,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:25,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:03:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:25,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-18 11:03:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:25,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-18 11:03:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:25,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:03:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 11:03:25,458 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106180462] [2020-08-18 11:03:25,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 11:03:25,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 11:03:25,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710959632] [2020-08-18 11:03:25,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 11:03:25,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:03:25,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 11:03:25,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-18 11:03:25,461 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-08-18 11:03:31,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:03:31,571 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-08-18 11:03:31,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 11:03:31,572 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-18 11:03:31,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:03:31,580 INFO L225 Difference]: With dead ends: 1640 [2020-08-18 11:03:31,580 INFO L226 Difference]: Without dead ends: 864 [2020-08-18 11:03:31,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-08-18 11:03:31,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-08-18 11:03:31,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-08-18 11:03:31,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-08-18 11:03:31,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-08-18 11:03:31,754 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-08-18 11:03:31,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:03:31,755 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-08-18 11:03:31,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 11:03:31,755 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-08-18 11:03:31,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-18 11:03:31,758 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:03:31,758 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:03:31,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 11:03:31,758 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:03:31,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:03:31,759 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-08-18 11:03:31,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:03:31,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1149257812] [2020-08-18 11:03:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:03:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:32,288 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 11:03:32,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:03:32,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:32,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:03:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:32,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:03:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:32,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 11:03:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:32,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:03:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:32,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 11:03:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:32,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-18 11:03:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:32,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:03:32,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:32,529 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 11:03:32,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1149257812] [2020-08-18 11:03:32,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 11:03:32,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-18 11:03:32,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271110698] [2020-08-18 11:03:32,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 11:03:32,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:03:32,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 11:03:32,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-18 11:03:32,534 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-08-18 11:03:39,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:03:39,887 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-08-18 11:03:39,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 11:03:39,889 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-08-18 11:03:39,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:03:39,899 INFO L225 Difference]: With dead ends: 1674 [2020-08-18 11:03:39,899 INFO L226 Difference]: Without dead ends: 894 [2020-08-18 11:03:39,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-08-18 11:03:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-18 11:03:40,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-08-18 11:03:40,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-08-18 11:03:40,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-08-18 11:03:40,086 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-08-18 11:03:40,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:03:40,088 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-08-18 11:03:40,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 11:03:40,088 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-08-18 11:03:40,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-18 11:03:40,097 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:03:40,097 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:03:40,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 11:03:40,098 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:03:40,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:03:40,099 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-08-18 11:03:40,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:03:40,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864064943] [2020-08-18 11:03:40,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:03:40,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:40,727 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 11:03:40,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:03:40,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:40,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:03:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:40,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:03:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:40,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 11:03:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:40,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:03:40,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:40,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-18 11:03:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:40,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 11:03:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:40,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:03:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 11:03:40,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864064943] [2020-08-18 11:03:40,913 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 11:03:40,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-18 11:03:40,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279400122] [2020-08-18 11:03:40,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 11:03:40,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:03:40,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 11:03:40,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-18 11:03:40,915 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-08-18 11:03:48,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:03:48,668 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-08-18 11:03:48,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 11:03:48,669 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-08-18 11:03:48,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:03:48,676 INFO L225 Difference]: With dead ends: 1734 [2020-08-18 11:03:48,676 INFO L226 Difference]: Without dead ends: 924 [2020-08-18 11:03:48,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-08-18 11:03:48,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-08-18 11:03:48,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-08-18 11:03:48,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-18 11:03:48,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-08-18 11:03:48,797 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-08-18 11:03:48,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:03:48,797 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-08-18 11:03:48,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 11:03:48,798 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-08-18 11:03:48,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-18 11:03:48,799 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:03:48,799 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:03:48,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 11:03:48,800 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:03:48,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:03:48,800 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-08-18 11:03:48,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:03:48,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753462625] [2020-08-18 11:03:48,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:03:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:49,318 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 11:03:49,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:03:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:49,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:03:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:49,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:03:49,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:49,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 11:03:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:49,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:03:49,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:49,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-18 11:03:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:49,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 11:03:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:49,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:03:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:49,541 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 11:03:49,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753462625] [2020-08-18 11:03:49,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 11:03:49,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-18 11:03:49,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944259265] [2020-08-18 11:03:49,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 11:03:49,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:03:49,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 11:03:49,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-18 11:03:49,544 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-08-18 11:03:55,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:03:55,890 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-08-18 11:03:55,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 11:03:55,892 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-08-18 11:03:55,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:03:55,898 INFO L225 Difference]: With dead ends: 1794 [2020-08-18 11:03:55,898 INFO L226 Difference]: Without dead ends: 954 [2020-08-18 11:03:55,901 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 [2020-08-18 11:03:55,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-08-18 11:03:56,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-08-18 11:03:56,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-08-18 11:03:56,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-08-18 11:03:56,008 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-08-18 11:03:56,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:03:56,009 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-08-18 11:03:56,009 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 11:03:56,009 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-08-18 11:03:56,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-18 11:03:56,010 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:03:56,011 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:03:56,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 11:03:56,011 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:03:56,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:03:56,011 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-08-18 11:03:56,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:03:56,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1139637831] [2020-08-18 11:03:56,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:03:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:56,517 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-18 11:03:56,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 11:03:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:56,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 11:03:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:56,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 11:03:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:56,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-18 11:03:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:56,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:03:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:56,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 11:03:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:56,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-18 11:03:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:56,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 11:03:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 11:03:56,742 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-18 11:03:56,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1139637831] [2020-08-18 11:03:56,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 11:03:56,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-18 11:03:56,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756153416] [2020-08-18 11:03:56,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 11:03:56,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 11:03:56,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 11:03:56,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-18 11:03:56,745 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states. [2020-08-18 11:04:06,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 11:04:06,873 INFO L93 Difference]: Finished difference Result 1854 states and 2458 transitions. [2020-08-18 11:04:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 11:04:06,875 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 73 [2020-08-18 11:04:06,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 11:04:06,881 INFO L225 Difference]: With dead ends: 1854 [2020-08-18 11:04:06,881 INFO L226 Difference]: Without dead ends: 984 [2020-08-18 11:04:06,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 11:04:06,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-08-18 11:04:06,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 927. [2020-08-18 11:04:06,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2020-08-18 11:04:06,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1221 transitions. [2020-08-18 11:04:06,999 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1221 transitions. Word has length 73 [2020-08-18 11:04:06,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 11:04:06,999 INFO L479 AbstractCegarLoop]: Abstraction has 927 states and 1221 transitions. [2020-08-18 11:04:06,999 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 11:04:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1221 transitions. [2020-08-18 11:04:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-08-18 11:04:07,001 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 11:04:07,001 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 11:04:07,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 11:04:07,001 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 11:04:07,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 11:04:07,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1523843977, now seen corresponding path program 5 times [2020-08-18 11:04:07,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 11:04:07,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1207250988] [2020-08-18 11:04:07,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 11:04:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat