/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=SHALLOWEST --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 20:16:35,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 20:16:35,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 20:16:35,951 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 20:16:35,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 20:16:35,953 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 20:16:35,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 20:16:35,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 20:16:35,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 20:16:35,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 20:16:35,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 20:16:35,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 20:16:35,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 20:16:35,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 20:16:35,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 20:16:35,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 20:16:35,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 20:16:35,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 20:16:35,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 20:16:35,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 20:16:35,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 20:16:35,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 20:16:35,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 20:16:35,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 20:16:35,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 20:16:35,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 20:16:35,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 20:16:35,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 20:16:35,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 20:16:35,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 20:16:35,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 20:16:35,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 20:16:35,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 20:16:35,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 20:16:35,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 20:16:35,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 20:16:35,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 20:16:35,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 20:16:35,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 20:16:35,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 20:16:35,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 20:16:35,993 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 20:16:36,037 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 20:16:36,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 20:16:36,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 20:16:36,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 20:16:36,039 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 20:16:36,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 20:16:36,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 20:16:36,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 20:16:36,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 20:16:36,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 20:16:36,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 20:16:36,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 20:16:36,043 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 20:16:36,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 20:16:36,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 20:16:36,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 20:16:36,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 20:16:36,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 20:16:36,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 20:16:36,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 20:16:36,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 20:16:36,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 20:16:36,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 20:16:36,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 20:16:36,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 20:16:36,047 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 20:16:36,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-21 20:16:36,047 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=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-08-21 20:16:36,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 20:16:36,396 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 20:16:36,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 20:16:36,403 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 20:16:36,404 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 20:16:36,405 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-21 20:16:36,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96fe9af38/84d30d46ddf04565872a2c333a4e26a0/FLAG81608928d [2020-08-21 20:16:37,225 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 20:16:37,226 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--joystick--analog.ko-entry_point.cil.out.i [2020-08-21 20:16:37,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96fe9af38/84d30d46ddf04565872a2c333a4e26a0/FLAG81608928d [2020-08-21 20:16:37,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/96fe9af38/84d30d46ddf04565872a2c333a4e26a0 [2020-08-21 20:16:37,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 20:16:37,373 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 20:16:37,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 20:16:37,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 20:16:37,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 20:16:37,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 08:16:37" (1/1) ... [2020-08-21 20:16:37,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@337f1f9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:37, skipping insertion in model container [2020-08-21 20:16:37,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 08:16:37" (1/1) ... [2020-08-21 20:16:37,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 20:16:37,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 20:16:38,055 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 20:16:38,056 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 20:16:38,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 20:16:38,711 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 20:16:38,800 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 20:16:38,800 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 20:16:39,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 20:16:39,139 INFO L208 MainTranslator]: Completed translation [2020-08-21 20:16:39,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:39 WrapperNode [2020-08-21 20:16:39,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 20:16:39,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 20:16:39,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 20:16:39,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 20:16:39,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:39" (1/1) ... [2020-08-21 20:16:39,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:39" (1/1) ... [2020-08-21 20:16:39,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:39" (1/1) ... [2020-08-21 20:16:39,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:39" (1/1) ... [2020-08-21 20:16:39,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:39" (1/1) ... [2020-08-21 20:16:39,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:39" (1/1) ... [2020-08-21 20:16:39,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:39" (1/1) ... [2020-08-21 20:16:39,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 20:16:39,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 20:16:39,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 20:16:39,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 20:16:39,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:39" (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 20:16:39,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 20:16:39,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 20:16:39,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-08-21 20:16:39,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-08-21 20:16:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-21 20:16:39,513 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-08-21 20:16:39,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2020-08-21 20:16:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight16 [2020-08-21 20:16:39,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight8 [2020-08-21 20:16:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure paravirt_read_tsc [2020-08-21 20:16:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-08-21 20:16:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-08-21 20:16:39,518 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-08-21 20:16:39,522 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-08-21 20:16:39,522 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-08-21 20:16:39,523 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-08-21 20:16:39,523 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-08-21 20:16:39,523 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 20:16:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-08-21 20:16:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-08-21 20:16:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-08-21 20:16:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-08-21 20:16:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-08-21 20:16:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-08-21 20:16:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-08-21 20:16:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-08-21 20:16:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-08-21 20:16:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-08-21 20:16:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2020-08-21 20:16:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2020-08-21 20:16:39,526 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2020-08-21 20:16:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2020-08-21 20:16:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2020-08-21 20:16:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2020-08-21 20:16:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_get_drvdata [2020-08-21 20:16:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_drvdata [2020-08-21 20:16:39,527 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_trigger [2020-08-21 20:16:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_read [2020-08-21 20:16:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_cooked_read [2020-08-21 20:16:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_calibrate [2020-08-21 20:16:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_time [2020-08-21 20:16:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_handler [2020-08-21 20:16:39,528 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_poll_interval [2020-08-21 20:16:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_decode [2020-08-21 20:16:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_cooked_read [2020-08-21 20:16:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_button_read [2020-08-21 20:16:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_poll [2020-08-21 20:16:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_open [2020-08-21 20:16:39,529 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_close [2020-08-21 20:16:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_calibrate_timer [2020-08-21 20:16:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_name [2020-08-21 20:16:39,530 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_device [2020-08-21 20:16:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_masks [2020-08-21 20:16:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init_port [2020-08-21 20:16:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_connect [2020-08-21 20:16:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_disconnect [2020-08-21 20:16:39,531 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_parse_options [2020-08-21 20:16:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_init [2020-08-21 20:16:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure analog_exit [2020-08-21 20:16:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_gameport_driver_1 [2020-08-21 20:16:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 20:16:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-08-21 20:16:39,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-08-21 20:16:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-21 20:16:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-08-21 20:16:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-08-21 20:16:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-08-21 20:16:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-08-21 20:16:39,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-08-21 20:16:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_driver [2020-08-21 20:16:39,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2020-08-21 20:16:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_close [2020-08-21 20:16:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_open [2020-08-21 20:16:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_start_polling [2020-08-21 20:16:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_stop_polling [2020-08-21 20:16:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_driver [2020-08-21 20:16:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2020-08-21 20:16:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2020-08-21 20:16:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2020-08-21 20:16:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2020-08-21 20:16:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2020-08-21 20:16:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-08-21 20:16:39,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_bind_1 [2020-08-21 20:16:39,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-08-21 20:16:39,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-08-21 20:16:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-08-21 20:16:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-08-21 20:16:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-08-21 20:16:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-08-21 20:16:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2020-08-21 20:16:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2020-08-21 20:16:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-08-21 20:16:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-08-21 20:16:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-08-21 20:16:39,540 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-08-21 20:16:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 20:16:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-08-21 20:16:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-08-21 20:16:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2020-08-21 20:16:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight16 [2020-08-21 20:16:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight8 [2020-08-21 20:16:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-08-21 20:16:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2020-08-21 20:16:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-08-21 20:16:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-08-21 20:16:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-08-21 20:16:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2020-08-21 20:16:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure paravirt_read_tsc [2020-08-21 20:16:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-21 20:16:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-08-21 20:16:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-08-21 20:16:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-08-21 20:16:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-08-21 20:16:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-08-21 20:16:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-08-21 20:16:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-08-21 20:16:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-08-21 20:16:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-08-21 20:16:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-08-21 20:16:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-08-21 20:16:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-08-21 20:16:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-08-21 20:16:39,546 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-21 20:16:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-21 20:16:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 20:16:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-08-21 20:16:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 20:16:39,547 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 20:16:39,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-08-21 20:16:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-21 20:16:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-08-21 20:16:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-08-21 20:16:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-08-21 20:16:39,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-08-21 20:16:39,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-08-21 20:16:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-08-21 20:16:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-08-21 20:16:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_gameport_driver_1 [2020-08-21 20:16:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2020-08-21 20:16:39,554 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-08-21 20:16:39,555 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-08-21 20:16:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-08-21 20:16:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-08-21 20:16:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-21 20:16:39,563 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2020-08-21 20:16:39,564 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2020-08-21 20:16:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2020-08-21 20:16:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2020-08-21 20:16:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2020-08-21 20:16:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2020-08-21 20:16:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2020-08-21 20:16:39,565 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2020-08-21 20:16:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2020-08-21 20:16:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2020-08-21 20:16:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2020-08-21 20:16:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_open [2020-08-21 20:16:39,566 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_close [2020-08-21 20:16:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_get_drvdata [2020-08-21 20:16:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_drvdata [2020-08-21 20:16:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_driver [2020-08-21 20:16:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_driver [2020-08-21 20:16:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_trigger [2020-08-21 20:16:39,567 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-08-21 20:16:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-21 20:16:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_read [2020-08-21 20:16:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-08-21 20:16:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_cooked_read [2020-08-21 20:16:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2020-08-21 20:16:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_calibrate [2020-08-21 20:16:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_time [2020-08-21 20:16:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_handler [2020-08-21 20:16:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_poll_interval [2020-08-21 20:16:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-21 20:16:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_start_polling [2020-08-21 20:16:39,569 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_stop_polling [2020-08-21 20:16:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure analog_decode [2020-08-21 20:16:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure analog_cooked_read [2020-08-21 20:16:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-21 20:16:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-21 20:16:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure analog_button_read [2020-08-21 20:16:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure analog_poll [2020-08-21 20:16:39,570 INFO L130 BoogieDeclarations]: Found specification of procedure analog_open [2020-08-21 20:16:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure analog_close [2020-08-21 20:16:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure analog_calibrate_timer [2020-08-21 20:16:39,571 INFO L130 BoogieDeclarations]: Found specification of procedure analog_name [2020-08-21 20:16:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_device [2020-08-21 20:16:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_masks [2020-08-21 20:16:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init_port [2020-08-21 20:16:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure analog_connect [2020-08-21 20:16:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure analog_disconnect [2020-08-21 20:16:39,572 INFO L130 BoogieDeclarations]: Found specification of procedure analog_parse_options [2020-08-21 20:16:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure analog_init [2020-08-21 20:16:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure analog_exit [2020-08-21 20:16:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-08-21 20:16:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-08-21 20:16:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-08-21 20:16:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_bind_1 [2020-08-21 20:16:39,573 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 20:16:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-08-21 20:16:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-08-21 20:16:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-08-21 20:16:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-08-21 20:16:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-08-21 20:16:39,574 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-08-21 20:16:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-21 20:16:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 20:16:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-21 20:16:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-08-21 20:16:39,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 20:16:40,451 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-08-21 20:16:42,472 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 20:16:42,472 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-21 20:16:42,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:16:42 BoogieIcfgContainer [2020-08-21 20:16:42,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 20:16:42,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 20:16:42,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 20:16:42,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 20:16:42,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 08:16:37" (1/3) ... [2020-08-21 20:16:42,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea0e9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 08:16:42, skipping insertion in model container [2020-08-21 20:16:42,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:16:39" (2/3) ... [2020-08-21 20:16:42,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea0e9ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 08:16:42, skipping insertion in model container [2020-08-21 20:16:42,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:16:42" (3/3) ... [2020-08-21 20:16:42,490 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 20:16:42,501 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 20:16:42,510 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 20:16:42,525 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 20:16:42,553 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 20:16:42,553 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 20:16:42,553 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 20:16:42,553 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 20:16:42,553 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 20:16:42,554 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 20:16:42,554 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 20:16:42,554 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 20:16:42,588 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states. [2020-08-21 20:16:42,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-08-21 20:16:42,597 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:16:42,598 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 20:16:42,598 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:16:42,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:16:42,604 INFO L82 PathProgramCache]: Analyzing trace with hash -2058672228, now seen corresponding path program 1 times [2020-08-21 20:16:42,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:16:42,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552267669] [2020-08-21 20:16:42,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:16:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:43,699 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 20:16:43,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:43,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:43,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:16:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:43,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:16:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:43,830 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 20:16:43,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552267669] [2020-08-21 20:16:43,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:16:43,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 20:16:43,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025678678] [2020-08-21 20:16:43,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 20:16:43,840 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:16:43,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 20:16:43,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-21 20:16:43,857 INFO L87 Difference]: Start difference. First operand 791 states. Second operand 5 states. [2020-08-21 20:16:44,848 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2020-08-21 20:16:53,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:16:53,164 INFO L93 Difference]: Finished difference Result 1648 states and 2166 transitions. [2020-08-21 20:16:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 20:16:53,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-08-21 20:16:53,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:16:53,189 INFO L225 Difference]: With dead ends: 1648 [2020-08-21 20:16:53,190 INFO L226 Difference]: Without dead ends: 834 [2020-08-21 20:16:53,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-21 20:16:53,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2020-08-21 20:16:53,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 803. [2020-08-21 20:16:53,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2020-08-21 20:16:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1039 transitions. [2020-08-21 20:16:53,400 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1039 transitions. Word has length 30 [2020-08-21 20:16:53,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:16:53,401 INFO L479 AbstractCegarLoop]: Abstraction has 803 states and 1039 transitions. [2020-08-21 20:16:53,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 20:16:53,401 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1039 transitions. [2020-08-21 20:16:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-21 20:16:53,404 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:16:53,404 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 20:16:53,405 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 20:16:53,405 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:16:53,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:16:53,405 INFO L82 PathProgramCache]: Analyzing trace with hash 229024885, now seen corresponding path program 1 times [2020-08-21 20:16:53,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:16:53,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490487065] [2020-08-21 20:16:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:16:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:54,071 WARN L193 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 20:16:54,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:16:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:54,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:16:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:54,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:16:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:54,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:16:54,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:54,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 20:16:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:54,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-08-21 20:16:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:54,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-21 20:16:54,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:54,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 20:16:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:16:54,279 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 20:16:54,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490487065] [2020-08-21 20:16:54,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:16:54,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-21 20:16:54,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761761184] [2020-08-21 20:16:54,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 20:16:54,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:16:54,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 20:16:54,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-08-21 20:16:54,284 INFO L87 Difference]: Start difference. First operand 803 states and 1039 transitions. Second operand 7 states. [2020-08-21 20:17:00,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:17:00,928 INFO L93 Difference]: Finished difference Result 1640 states and 2144 transitions. [2020-08-21 20:17:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:17:00,929 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2020-08-21 20:17:00,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:17:00,935 INFO L225 Difference]: With dead ends: 1640 [2020-08-21 20:17:00,935 INFO L226 Difference]: Without dead ends: 864 [2020-08-21 20:17:00,939 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 20:17:00,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2020-08-21 20:17:01,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 807. [2020-08-21 20:17:01,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-08-21 20:17:01,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1045 transitions. [2020-08-21 20:17:01,057 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1045 transitions. Word has length 65 [2020-08-21 20:17:01,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:17:01,058 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1045 transitions. [2020-08-21 20:17:01,058 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 20:17:01,058 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1045 transitions. [2020-08-21 20:17:01,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-21 20:17:01,061 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:17:01,061 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 20:17:01,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 20:17:01,061 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:17:01,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:17:01,062 INFO L82 PathProgramCache]: Analyzing trace with hash 780245369, now seen corresponding path program 1 times [2020-08-21 20:17:01,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:17:01,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1759048553] [2020-08-21 20:17:01,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:17:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:01,655 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 20:17:01,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:17:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:01,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:17:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:01,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:17:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:01,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:17:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:01,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 20:17:01,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:01,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 20:17:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:01,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-21 20:17:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:01,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 20:17:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:01,838 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 20:17:01,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1759048553] [2020-08-21 20:17:01,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:17:01,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 20:17:01,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379054405] [2020-08-21 20:17:01,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 20:17:01,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:17:01,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 20:17:01,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-21 20:17:01,842 INFO L87 Difference]: Start difference. First operand 807 states and 1045 transitions. Second operand 8 states. [2020-08-21 20:17:10,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:17:10,348 INFO L93 Difference]: Finished difference Result 1674 states and 2194 transitions. [2020-08-21 20:17:10,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 20:17:10,349 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-08-21 20:17:10,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:17:10,356 INFO L225 Difference]: With dead ends: 1674 [2020-08-21 20:17:10,356 INFO L226 Difference]: Without dead ends: 894 [2020-08-21 20:17:10,359 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 20:17:10,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-08-21 20:17:10,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 837. [2020-08-21 20:17:10,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 837 states. [2020-08-21 20:17:10,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1089 transitions. [2020-08-21 20:17:10,466 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1089 transitions. Word has length 67 [2020-08-21 20:17:10,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:17:10,466 INFO L479 AbstractCegarLoop]: Abstraction has 837 states and 1089 transitions. [2020-08-21 20:17:10,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 20:17:10,466 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1089 transitions. [2020-08-21 20:17:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-21 20:17:10,469 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:17:10,469 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 20:17:10,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 20:17:10,470 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:17:10,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:17:10,470 INFO L82 PathProgramCache]: Analyzing trace with hash -2072814211, now seen corresponding path program 2 times [2020-08-21 20:17:10,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:17:10,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318015215] [2020-08-21 20:17:10,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:17:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:11,198 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 20:17:11,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:17:11,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:11,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:17:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:11,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:17:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:11,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:17:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:11,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 20:17:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:11,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-21 20:17:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:11,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-21 20:17:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:11,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 20:17:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:11,381 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 20:17:11,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318015215] [2020-08-21 20:17:11,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:17:11,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-21 20:17:11,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979301401] [2020-08-21 20:17:11,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-21 20:17:11,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:17:11,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-21 20:17:11,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-21 20:17:11,384 INFO L87 Difference]: Start difference. First operand 837 states and 1089 transitions. Second operand 9 states. [2020-08-21 20:17:20,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:17:20,889 INFO L93 Difference]: Finished difference Result 1734 states and 2282 transitions. [2020-08-21 20:17:20,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 20:17:20,891 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-08-21 20:17:20,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:17:20,898 INFO L225 Difference]: With dead ends: 1734 [2020-08-21 20:17:20,899 INFO L226 Difference]: Without dead ends: 924 [2020-08-21 20:17:20,902 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 [2020-08-21 20:17:20,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2020-08-21 20:17:20,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 867. [2020-08-21 20:17:20,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-08-21 20:17:21,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1133 transitions. [2020-08-21 20:17:21,001 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1133 transitions. Word has length 69 [2020-08-21 20:17:21,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:17:21,002 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1133 transitions. [2020-08-21 20:17:21,002 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-21 20:17:21,002 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1133 transitions. [2020-08-21 20:17:21,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-08-21 20:17:21,004 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:17:21,004 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 20:17:21,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 20:17:21,004 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:17:21,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:17:21,005 INFO L82 PathProgramCache]: Analyzing trace with hash 621031553, now seen corresponding path program 3 times [2020-08-21 20:17:21,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:17:21,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572645083] [2020-08-21 20:17:21,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:17:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:21,560 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 20:17:21,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:17:21,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:21,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:17:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:21,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:17:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:21,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:17:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:21,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 20:17:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:21,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-08-21 20:17:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:21,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-21 20:17:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:21,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 20:17:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:21,856 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 20:17:21,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572645083] [2020-08-21 20:17:21,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:17:21,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 20:17:21,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421077293] [2020-08-21 20:17:21,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 20:17:21,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:17:21,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 20:17:21,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-08-21 20:17:21,864 INFO L87 Difference]: Start difference. First operand 867 states and 1133 transitions. Second operand 10 states. [2020-08-21 20:17:29,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:17:29,271 INFO L93 Difference]: Finished difference Result 1794 states and 2370 transitions. [2020-08-21 20:17:29,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 20:17:29,272 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-08-21 20:17:29,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:17:29,279 INFO L225 Difference]: With dead ends: 1794 [2020-08-21 20:17:29,279 INFO L226 Difference]: Without dead ends: 954 [2020-08-21 20:17:29,282 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 20:17:29,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2020-08-21 20:17:29,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 897. [2020-08-21 20:17:29,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 897 states. [2020-08-21 20:17:29,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1177 transitions. [2020-08-21 20:17:29,400 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1177 transitions. Word has length 71 [2020-08-21 20:17:29,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:17:29,401 INFO L479 AbstractCegarLoop]: Abstraction has 897 states and 1177 transitions. [2020-08-21 20:17:29,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 20:17:29,401 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1177 transitions. [2020-08-21 20:17:29,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-21 20:17:29,403 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:17:29,403 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 20:17:29,403 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 20:17:29,403 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:17:29,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:17:29,404 INFO L82 PathProgramCache]: Analyzing trace with hash -458468731, now seen corresponding path program 4 times [2020-08-21 20:17:29,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:17:29,404 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066229408] [2020-08-21 20:17:29,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:17:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:29,990 WARN L193 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 262 [2020-08-21 20:17:29,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:17:30,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:30,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-21 20:17:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:30,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-21 20:17:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:30,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:17:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:30,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 20:17:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:30,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-21 20:17:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:30,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-08-21 20:17:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:30,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-21 20:17:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:17:30,271 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 20:17:30,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066229408] [2020-08-21 20:17:30,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:17:30,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 20:17:30,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079158908] [2020-08-21 20:17:30,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 20:17:30,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:17:30,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 20:17:30,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-21 20:17:30,274 INFO L87 Difference]: Start difference. First operand 897 states and 1177 transitions. Second operand 11 states.