/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 04:01:47,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 04:01:47,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 04:01:47,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 04:01:47,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 04:01:47,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 04:01:47,415 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 04:01:47,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 04:01:47,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 04:01:47,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 04:01:47,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 04:01:47,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 04:01:47,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 04:01:47,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 04:01:47,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 04:01:47,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 04:01:47,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 04:01:47,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 04:01:47,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 04:01:47,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 04:01:47,438 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 04:01:47,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 04:01:47,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 04:01:47,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 04:01:47,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 04:01:47,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 04:01:47,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 04:01:47,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 04:01:47,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 04:01:47,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 04:01:47,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 04:01:47,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 04:01:47,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 04:01:47,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 04:01:47,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 04:01:47,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 04:01:47,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 04:01:47,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 04:01:47,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 04:01:47,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 04:01:47,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 04:01:47,456 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 04:01:47,478 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 04:01:47,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 04:01:47,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 04:01:47,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 04:01:47,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 04:01:47,479 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 04:01:47,479 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 04:01:47,480 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 04:01:47,480 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 04:01:47,480 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 04:01:47,480 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 04:01:47,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 04:01:47,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 04:01:47,481 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 04:01:47,481 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 04:01:47,481 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 04:01:47,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 04:01:47,481 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 04:01:47,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 04:01:47,482 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 04:01:47,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 04:01:47,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 04:01:47,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 04:01:47,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 04:01:47,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 04:01:47,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 04:01:47,482 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 04:01:47,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 04:01:47,483 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 04:01:47,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 04:01:47,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 04:01:47,483 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 04:01:47,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:01:47,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 04:01:47,483 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 04:01:47,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 04:01:47,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 04:01:47,484 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 04:01:47,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 04:01:47,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 04:01:47,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 04:01:47,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 04:01:47,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 04:01:47,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 04:01:47,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 04:01:47,683 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 04:01:47,683 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 04:01:47,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2023-04-03 04:01:48,604 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 04:01:48,885 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 04:01:48,886 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2023-04-03 04:01:48,908 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f413db90a/5d9fdc25a767430199b30290f1f01a21/FLAG10faebc84 [2023-04-03 04:01:48,921 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f413db90a/5d9fdc25a767430199b30290f1f01a21 [2023-04-03 04:01:48,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 04:01:48,923 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 04:01:48,925 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 04:01:48,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 04:01:48,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 04:01:48,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:01:48" (1/1) ... [2023-04-03 04:01:48,929 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77dcf361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:48, skipping insertion in model container [2023-04-03 04:01:48,929 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:01:48" (1/1) ... [2023-04-03 04:01:48,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 04:01:48,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 04:01:49,437 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i[71148,71161] [2023-04-03 04:01:49,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:01:49,470 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 04:01:49,567 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i[71148,71161] [2023-04-03 04:01:49,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:01:49,607 WARN L667 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:01:49,607 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:01:49,612 INFO L208 MainTranslator]: Completed translation [2023-04-03 04:01:49,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:49 WrapperNode [2023-04-03 04:01:49,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 04:01:49,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 04:01:49,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 04:01:49,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 04:01:49,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:49" (1/1) ... [2023-04-03 04:01:49,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:49" (1/1) ... [2023-04-03 04:01:49,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:49" (1/1) ... [2023-04-03 04:01:49,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:49" (1/1) ... [2023-04-03 04:01:49,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:49" (1/1) ... [2023-04-03 04:01:49,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:49" (1/1) ... [2023-04-03 04:01:49,741 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:49" (1/1) ... [2023-04-03 04:01:49,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:49" (1/1) ... [2023-04-03 04:01:49,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 04:01:49,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 04:01:49,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 04:01:49,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 04:01:49,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:49" (1/1) ... [2023-04-03 04:01:49,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:01:49,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:01:49,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 04:01:49,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 04:01:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 04:01:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 04:01:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 04:01:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-04-03 04:01:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2023-04-03 04:01:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2023-04-03 04:01:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-03 04:01:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-04-03 04:01:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 04:01:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 04:01:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure extract_value [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_send_message [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_ver_check [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_count [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_name [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_query_sensor_data [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_reset_high_low_data [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_update_device [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bmc_data [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure show_name [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_show_sensor [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_reset_high_low [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_sensor [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure is_temp_sensor [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure power_sensor_multiplier [2023-04-03 04:01:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sensor [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_find_sensors [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_register_bmc [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_delete [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_bmc_gone [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_msg_handler [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_init [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ibmpex_exit [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_5 [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_6 [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_7 [2023-04-03 04:01:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 04:01:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 04:01:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 04:01:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 04:01:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 04:01:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 04:01:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_sysfs [2023-04-03 04:01:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2023-04-03 04:01:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute_2 [2023-04-03 04:01:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 04:01:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-03 04:01:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-03 04:01:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-03 04:01:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-03 04:01:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-04-03 04:01:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-03 04:01:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_register [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_create_user [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_request_settime [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_watcher_register [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_watcher_unregister [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_validate_addr [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 04:01:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-04-03 04:01:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-03 04:01:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-03 04:01:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 04:01:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-04-03 04:01:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 04:01:49,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 04:01:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 04:01:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 04:01:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 04:01:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 04:01:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 04:01:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 04:01:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 04:01:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 04:01:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_5 [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_6 [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_7 [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_sysfs [2023-04-03 04:01:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute [2023-04-03 04:01:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute_2 [2023-04-03 04:01:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 04:01:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 04:01:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 04:01:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 04:01:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 04:01:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 04:01:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 04:01:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 04:01:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 04:01:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 04:01:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2023-04-03 04:01:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_create_user [2023-04-03 04:01:49,824 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_request_settime [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_watcher_register [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_watcher_unregister [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_validate_addr [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure extract_value [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_msg_handler [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_register_bmc [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_gone [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_send_message [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_ver_check [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_count [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_name [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_query_sensor_data [2023-04-03 04:01:49,825 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_reset_high_low_data [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_update_device [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure get_bmc_data [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure show_name [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_show_sensor [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_reset_high_low [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_sensor [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure is_temp_sensor [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure power_sensor_multiplier [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure create_sensor [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_find_sensors [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_bmc_delete [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_init [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ibmpex_exit [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 04:01:49,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 04:01:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 04:01:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 04:01:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 04:01:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 04:01:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 04:01:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 04:01:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 04:01:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 04:01:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 04:01:49,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 04:01:50,112 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 04:01:50,114 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 04:01:50,844 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 04:01:50,969 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 04:01:50,969 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 04:01:50,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:01:50 BoogieIcfgContainer [2023-04-03 04:01:50,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 04:01:50,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 04:01:50,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 04:01:50,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 04:01:50,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 04:01:48" (1/3) ... [2023-04-03 04:01:50,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265b5b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:01:50, skipping insertion in model container [2023-04-03 04:01:50,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:01:49" (2/3) ... [2023-04-03 04:01:50,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@265b5b25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:01:50, skipping insertion in model container [2023-04-03 04:01:50,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:01:50" (3/3) ... [2023-04-03 04:01:50,980 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-hwmon-ibmpex-ko--130_7a--d631323.i [2023-04-03 04:01:50,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 04:01:50,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 04:01:51,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 04:01:51,051 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@304d4800, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 04:01:51,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 04:01:51,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 425 states, 241 states have (on average 1.2199170124481329) internal successors, (294), 250 states have internal predecessors, (294), 111 states have call successors, (111), 67 states have call predecessors, (111), 67 states have return successors, (111), 108 states have call predecessors, (111), 111 states have call successors, (111) [2023-04-03 04:01:51,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-04-03 04:01:51,071 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:01:51,071 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:01:51,072 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:01:51,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:01:51,075 INFO L85 PathProgramCache]: Analyzing trace with hash -135056581, now seen corresponding path program 1 times [2023-04-03 04:01:51,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:01:51,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011144342] [2023-04-03 04:01:51,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:01:51,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:01:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:01:51,795 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-03 04:01:51,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:01:51,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011144342] [2023-04-03 04:01:51,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011144342] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:01:51,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:01:51,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 04:01:51,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84624474] [2023-04-03 04:01:51,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:01:51,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 04:01:51,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:01:51,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 04:01:51,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:01:51,824 INFO L87 Difference]: Start difference. First operand has 425 states, 241 states have (on average 1.2199170124481329) internal successors, (294), 250 states have internal predecessors, (294), 111 states have call successors, (111), 67 states have call predecessors, (111), 67 states have return successors, (111), 108 states have call predecessors, (111), 111 states have call successors, (111) Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-03 04:01:52,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:01:52,107 INFO L93 Difference]: Finished difference Result 736 states and 911 transitions. [2023-04-03 04:01:52,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:01:52,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) Word has length 172 [2023-04-03 04:01:52,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:01:52,127 INFO L225 Difference]: With dead ends: 736 [2023-04-03 04:01:52,127 INFO L226 Difference]: Without dead ends: 364 [2023-04-03 04:01:52,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:01:52,137 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 5 mSDsluCounter, 1147 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 04:01:52,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1533 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 04:01:52,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-04-03 04:01:52,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 357. [2023-04-03 04:01:52,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 205 states have (on average 1.2146341463414634) internal successors, (249), 211 states have internal predecessors, (249), 93 states have call successors, (93), 59 states have call predecessors, (93), 58 states have return successors, (91), 88 states have call predecessors, (91), 90 states have call successors, (91) [2023-04-03 04:01:52,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 433 transitions. [2023-04-03 04:01:52,211 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 433 transitions. Word has length 172 [2023-04-03 04:01:52,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:01:52,213 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 433 transitions. [2023-04-03 04:01:52,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (30), 3 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-03 04:01:52,214 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 433 transitions. [2023-04-03 04:01:52,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-03 04:01:52,220 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:01:52,221 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:01:52,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 04:01:52,221 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:01:52,221 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:01:52,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1438623193, now seen corresponding path program 1 times [2023-04-03 04:01:52,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:01:52,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184136966] [2023-04-03 04:01:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:01:52,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:01:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:01:53,254 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-03 04:01:53,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:01:53,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184136966] [2023-04-03 04:01:53,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184136966] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:01:53,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:01:53,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 04:01:53,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734616401] [2023-04-03 04:01:53,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:01:53,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 04:01:53,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:01:53,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 04:01:53,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-03 04:01:53,259 INFO L87 Difference]: Start difference. First operand 357 states and 433 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-03 04:01:55,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:01:55,222 INFO L93 Difference]: Finished difference Result 1380 states and 1793 transitions. [2023-04-03 04:01:55,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 04:01:55,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 192 [2023-04-03 04:01:55,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:01:55,233 INFO L225 Difference]: With dead ends: 1380 [2023-04-03 04:01:55,233 INFO L226 Difference]: Without dead ends: 1376 [2023-04-03 04:01:55,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-04-03 04:01:55,238 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 1509 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 822 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1630 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 822 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-03 04:01:55,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1630 Valid, 765 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [822 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-03 04:01:55,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2023-04-03 04:01:55,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1243. [2023-04-03 04:01:55,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1243 states, 743 states have (on average 1.2355316285329745) internal successors, (918), 766 states have internal predecessors, (918), 318 states have call successors, (318), 165 states have call predecessors, (318), 181 states have return successors, (355), 317 states have call predecessors, (355), 315 states have call successors, (355) [2023-04-03 04:01:55,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1243 states to 1243 states and 1591 transitions. [2023-04-03 04:01:55,331 INFO L78 Accepts]: Start accepts. Automaton has 1243 states and 1591 transitions. Word has length 192 [2023-04-03 04:01:55,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:01:55,333 INFO L495 AbstractCegarLoop]: Abstraction has 1243 states and 1591 transitions. [2023-04-03 04:01:55,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-03 04:01:55,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1243 states and 1591 transitions. [2023-04-03 04:01:55,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-04-03 04:01:55,338 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:01:55,338 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:01:55,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 04:01:55,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:01:55,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:01:55,339 INFO L85 PathProgramCache]: Analyzing trace with hash 47158312, now seen corresponding path program 1 times [2023-04-03 04:01:55,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:01:55,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331450216] [2023-04-03 04:01:55,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:01:55,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:01:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:01:55,609 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-03 04:01:55,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:01:55,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331450216] [2023-04-03 04:01:55,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331450216] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:01:55,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:01:55,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:01:55,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023533452] [2023-04-03 04:01:55,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:01:55,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:01:55,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:01:55,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:01:55,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:01:55,611 INFO L87 Difference]: Start difference. First operand 1243 states and 1591 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2023-04-03 04:01:55,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:01:55,803 INFO L93 Difference]: Finished difference Result 2469 states and 3192 transitions. [2023-04-03 04:01:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:01:55,804 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) Word has length 204 [2023-04-03 04:01:55,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:01:55,812 INFO L225 Difference]: With dead ends: 2469 [2023-04-03 04:01:55,812 INFO L226 Difference]: Without dead ends: 2052 [2023-04-03 04:01:55,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:01:55,815 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 400 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:01:55,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 1058 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 04:01:55,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2023-04-03 04:01:55,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 2004. [2023-04-03 04:01:55,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2004 states, 1195 states have (on average 1.2309623430962342) internal successors, (1471), 1230 states have internal predecessors, (1471), 514 states have call successors, (514), 271 states have call predecessors, (514), 294 states have return successors, (576), 512 states have call predecessors, (576), 511 states have call successors, (576) [2023-04-03 04:01:55,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2004 states to 2004 states and 2561 transitions. [2023-04-03 04:01:55,930 INFO L78 Accepts]: Start accepts. Automaton has 2004 states and 2561 transitions. Word has length 204 [2023-04-03 04:01:55,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:01:55,931 INFO L495 AbstractCegarLoop]: Abstraction has 2004 states and 2561 transitions. [2023-04-03 04:01:55,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (43), 3 states have call predecessors, (43), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2023-04-03 04:01:55,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2004 states and 2561 transitions. [2023-04-03 04:01:55,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-04-03 04:01:55,936 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:01:55,936 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:01:55,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 04:01:55,937 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:01:55,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:01:55,937 INFO L85 PathProgramCache]: Analyzing trace with hash -762508706, now seen corresponding path program 1 times [2023-04-03 04:01:55,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:01:55,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338069241] [2023-04-03 04:01:55,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:01:55,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:01:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:01:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-04-03 04:01:56,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:01:56,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338069241] [2023-04-03 04:01:56,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338069241] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:01:56,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931783942] [2023-04-03 04:01:56,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:01:56,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:01:56,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:01:56,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:01:56,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 04:01:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:01:56,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 2375 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-03 04:01:56,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:01:56,884 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-04-03 04:01:56,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 04:01:57,149 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-04-03 04:01:57,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931783942] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 04:01:57,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [636741841] [2023-04-03 04:01:57,175 INFO L159 IcfgInterpreter]: Started Sifa with 204 locations of interest [2023-04-03 04:01:57,175 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 04:01:57,178 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 04:01:57,181 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 04:01:57,181 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 04:01:58,655 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 70 for LOIs [2023-04-03 04:01:59,145 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 84 for LOIs [2023-04-03 04:02:03,834 INFO L197 IcfgInterpreter]: Interpreting procedure ibmpex_register_bmc with input of size 81 for LOIs [2023-04-03 04:02:04,044 INFO L197 IcfgInterpreter]: Interpreting procedure kzalloc with input of size 84 for LOIs [2023-04-03 04:02:04,180 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_handler_precall with input of size 57 for LOIs [2023-04-03 04:02:04,186 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize with input of size 87 for LOIs [2023-04-03 04:02:04,204 INFO L197 IcfgInterpreter]: Interpreting procedure ibmpex_init with input of size 57 for LOIs [2023-04-03 04:02:04,253 INFO L197 IcfgInterpreter]: Interpreting procedure ipmi_smi_watcher_register with input of size 62 for LOIs [2023-04-03 04:02:04,262 INFO L197 IcfgInterpreter]: Interpreting procedure kmalloc with input of size 88 for LOIs [2023-04-03 04:02:04,362 INFO L197 IcfgInterpreter]: Interpreting procedure __kmalloc with input of size 88 for LOIs [2023-04-03 04:02:04,460 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 90 for LOIs [2023-04-03 04:02:04,495 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 04:02:10,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [636741841] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:02:10,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-03 04:02:10,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [4, 4, 4] total 45 [2023-04-03 04:02:10,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759193508] [2023-04-03 04:02:10,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:02:10,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-04-03 04:02:10,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:02:10,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-04-03 04:02:10,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1822, Unknown=0, NotChecked=0, Total=1980 [2023-04-03 04:02:10,424 INFO L87 Difference]: Start difference. First operand 2004 states and 2561 transitions. Second operand has 41 states, 24 states have (on average 4.875) internal successors, (117), 22 states have internal predecessors, (117), 12 states have call successors, (51), 11 states have call predecessors, (51), 10 states have return successors, (45), 10 states have call predecessors, (45), 10 states have call successors, (45) [2023-04-03 04:02:36,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:02:36,195 INFO L93 Difference]: Finished difference Result 4155 states and 5360 transitions. [2023-04-03 04:02:36,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-04-03 04:02:36,196 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 24 states have (on average 4.875) internal successors, (117), 22 states have internal predecessors, (117), 12 states have call successors, (51), 11 states have call predecessors, (51), 10 states have return successors, (45), 10 states have call predecessors, (45), 10 states have call successors, (45) Word has length 268 [2023-04-03 04:02:36,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:02:36,204 INFO L225 Difference]: With dead ends: 4155 [2023-04-03 04:02:36,204 INFO L226 Difference]: Without dead ends: 2169 [2023-04-03 04:02:36,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 763 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1503 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=458, Invalid=5548, Unknown=0, NotChecked=0, Total=6006 [2023-04-03 04:02:36,211 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 784 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 12610 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 13094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 12610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2023-04-03 04:02:36,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 820 Invalid, 13094 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [484 Valid, 12610 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2023-04-03 04:02:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2023-04-03 04:02:36,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 2049. [2023-04-03 04:02:36,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1220 states have (on average 1.2237704918032788) internal successors, (1493), 1257 states have internal predecessors, (1493), 523 states have call successors, (523), 274 states have call predecessors, (523), 305 states have return successors, (592), 527 states have call predecessors, (592), 520 states have call successors, (592) [2023-04-03 04:02:36,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 2608 transitions. [2023-04-03 04:02:36,498 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 2608 transitions. Word has length 268 [2023-04-03 04:02:36,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:02:36,498 INFO L495 AbstractCegarLoop]: Abstraction has 2049 states and 2608 transitions. [2023-04-03 04:02:36,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 24 states have (on average 4.875) internal successors, (117), 22 states have internal predecessors, (117), 12 states have call successors, (51), 11 states have call predecessors, (51), 10 states have return successors, (45), 10 states have call predecessors, (45), 10 states have call successors, (45) [2023-04-03 04:02:36,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 2608 transitions. [2023-04-03 04:02:36,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2023-04-03 04:02:36,502 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:02:36,502 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:02:36,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 04:02:36,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:02:36,712 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:02:36,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:02:36,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1249636353, now seen corresponding path program 1 times [2023-04-03 04:02:36,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:02:36,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546598937] [2023-04-03 04:02:36,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:02:36,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:02:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:02:36,962 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-04-03 04:02:36,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:02:36,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546598937] [2023-04-03 04:02:36,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546598937] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:02:36,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487830877] [2023-04-03 04:02:36,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:02:36,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:02:36,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:02:36,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:02:36,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 04:02:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:02:37,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 2410 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-03 04:02:37,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:02:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-04-03 04:02:37,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 04:02:37,707 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-04-03 04:02:37,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487830877] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 04:02:37,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1612765027] [2023-04-03 04:02:37,711 INFO L159 IcfgInterpreter]: Started Sifa with 210 locations of interest [2023-04-03 04:02:37,711 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 04:02:37,712 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 04:02:37,712 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 04:02:37,712 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 04:02:38,668 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 70 for LOIs [2023-04-03 04:02:39,046 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 84 for LOIs [2023-04-03 04:02:43,300 INFO L197 IcfgInterpreter]: Interpreting procedure ibmpex_register_bmc with input of size 81 for LOIs [2023-04-03 04:02:44,911 INFO L197 IcfgInterpreter]: Interpreting procedure init_completion with input of size 99 for LOIs [2023-04-03 04:02:45,017 INFO L197 IcfgInterpreter]: Interpreting procedure __init_waitqueue_head with input of size 123 for LOIs [2023-04-03 04:02:45,031 INFO L197 IcfgInterpreter]: Interpreting procedure dev_set_drvdata with input of size 59 for LOIs [2023-04-03 04:02:45,038 INFO L197 IcfgInterpreter]: Interpreting procedure IS_ERR with input of size 90 for LOIs [2023-04-03 04:02:46,193 INFO L197 IcfgInterpreter]: Interpreting procedure ibmpex_find_sensors with input of size 83 for LOIs [2023-04-03 04:03:39,561 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_device_create_file_6 with input of size 82 for LOIs [2023-04-03 04:03:39,597 INFO L197 IcfgInterpreter]: Interpreting procedure ibmpex_query_sensor_name with input of size 93 for LOIs [2023-04-03 04:03:41,274 INFO L197 IcfgInterpreter]: Interpreting procedure is_power_sensor with input of size 79 for LOIs [2023-04-03 04:03:41,293 INFO L197 IcfgInterpreter]: Interpreting procedure list_add_tail with input of size 63 for LOIs [2023-04-03 04:03:41,381 INFO L197 IcfgInterpreter]: Interpreting procedure ibmpex_ver_check with input of size 123 for LOIs [2023-04-03 04:03:41,745 INFO L197 IcfgInterpreter]: Interpreting procedure _dev_info with input of size 76 for LOIs [2023-04-03 04:03:41,754 INFO L197 IcfgInterpreter]: Interpreting procedure extract_value with input of size 121 for LOIs [2023-04-03 04:03:41,865 INFO L197 IcfgInterpreter]: Interpreting procedure hwmon_device_register with input of size 77 for LOIs [2023-04-03 04:03:42,829 INFO L197 IcfgInterpreter]: Interpreting procedure __mutex_init with input of size 71 for LOIs [2023-04-03 04:03:42,838 INFO L197 IcfgInterpreter]: Interpreting procedure kzalloc with input of size 65 for LOIs [2023-04-03 04:03:44,254 INFO L197 IcfgInterpreter]: Interpreting procedure ipmi_create_user with input of size 162 for LOIs [2023-04-03 04:03:44,287 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_handler_precall with input of size 57 for LOIs [2023-04-03 04:03:44,291 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize with input of size 87 for LOIs [2023-04-03 04:03:44,301 INFO L197 IcfgInterpreter]: Interpreting procedure ibmpex_init with input of size 57 for LOIs [2023-04-03 04:03:44,357 INFO L197 IcfgInterpreter]: Interpreting procedure ipmi_smi_watcher_register with input of size 62 for LOIs [2023-04-03 04:03:44,364 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute with input of size 68 for LOIs [2023-04-03 04:03:44,391 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_error with input of size 62 for LOIs [2023-04-03 04:03:44,396 INFO L197 IcfgInterpreter]: Interpreting procedure __be16_to_cpup with input of size 119 for LOIs [2023-04-03 04:03:44,481 INFO L197 IcfgInterpreter]: Interpreting procedure __swab16p with input of size 119 for LOIs [2023-04-03 04:03:45,965 INFO L197 IcfgInterpreter]: Interpreting procedure __fswab16 with input of size 119 for LOIs [2023-04-03 04:03:46,056 INFO L197 IcfgInterpreter]: Interpreting procedure ibmpex_query_sensor_count with input of size 68 for LOIs [2023-04-03 04:03:46,603 INFO L197 IcfgInterpreter]: Interpreting procedure wait_for_completion with input of size 62 for LOIs [2023-04-03 04:03:46,609 INFO L197 IcfgInterpreter]: Interpreting procedure ibmpex_send_message with input of size 1 for LOIs [2023-04-03 04:03:46,640 INFO L197 IcfgInterpreter]: Interpreting procedure dev_err with input of size 33 for LOIs [2023-04-03 04:03:46,643 INFO L197 IcfgInterpreter]: Interpreting procedure ipmi_validate_addr with input of size 3 for LOIs [2023-04-03 04:03:46,644 INFO L197 IcfgInterpreter]: Interpreting procedure create_sensor with input of size 116 for LOIs [2023-04-03 04:03:49,266 INFO L197 IcfgInterpreter]: Interpreting procedure kmalloc with input of size 1 for LOIs [2023-04-03 04:03:49,275 INFO L197 IcfgInterpreter]: Interpreting procedure __kmalloc with input of size 7 for LOIs [2023-04-03 04:03:49,289 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 1 for LOIs [2023-04-03 04:03:49,328 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_is_err with input of size 1 for LOIs [2023-04-03 04:03:49,330 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 15 for LOIs [2023-04-03 04:03:49,332 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_device_create_file_5 with input of size 115 for LOIs [2023-04-03 04:03:49,491 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_device_create_file_dev_attr_of_sensor_device_attribute_2 with input of size 115 for LOIs [2023-04-03 04:03:49,557 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_sysfs with input of size 68 for LOIs [2023-04-03 04:03:49,563 INFO L197 IcfgInterpreter]: Interpreting procedure is_temp_sensor with input of size 79 for LOIs [2023-04-03 04:03:49,582 INFO L197 IcfgInterpreter]: Interpreting procedure __list_add with input of size 74 for LOIs [2023-04-03 04:03:49,591 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-03 04:05:04,049 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25036#(and (= 29 |~#power_sensor_name_templates~0.base|) (= |~#temp_sensor_name_templates~0.base| 30) (= |~#power_sensor_sig~0.base| 26) (= ~LDV_IN_INTERRUPT~0 1) (= |~#power_sensor_name_templates~0.offset| 0) (= 0 |~#driver_data~0.offset|) (= |~#driver_data~0.base| 31) (<= ~ldv_call_dev_attr_of_sensor_device_attribute_2~0 |#StackHeapBarrier|) (= |~#temp_sensor_sig~0.base| 27) (= |~#sensor_dev_attr_reset_high_low~0.offset| 0) (= |~#temp_sensor_name_templates~0.offset| 0) (<= 1 (+ ~ldv_call_dev_attr_of_sensor_device_attribute_2~0 |#StackHeapBarrier|)) (= ~ldv_call_dev_attr_of_sensor_device_attribute~0 1) (= |~#watt_sensor_sig~0.offset| 0) (= |#NULL.offset| 0) (<= ~ldv_call_dev_attr_of_sensor_device_attribute_2~0 1) (< ~ldv_count_1~0 ~ldv_count_2~0) (= |~#sensor_dev_attr_reset_high_low~0.base| 33) (= |~#watt_sensor_sig~0.base| 28) (<= 0 ~ldv_call_dev_attr_of_sensor_device_attribute_2~0) (= 32 |~#sensor_dev_attr_name~0.base|) (= |~#power_sensor_sig~0.offset| 0) (= |~#temp_sensor_sig~0.offset| 0) (= |#NULL.base| 0) (= |~#sensor_dev_attr_name~0.offset| 0))' at error location [2023-04-03 04:05:04,049 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-03 04:05:04,049 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-03 04:05:04,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2023-04-03 04:05:04,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309571545] [2023-04-03 04:05:04,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-03 04:05:04,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 04:05:04,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:05:04,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 04:05:04,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=745, Invalid=35067, Unknown=98, NotChecked=0, Total=35910 [2023-04-03 04:05:04,057 INFO L87 Difference]: Start difference. First operand 2049 states and 2608 transitions. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 5 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2023-04-03 04:05:04,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:05:04,501 INFO L93 Difference]: Finished difference Result 4631 states and 6090 transitions. [2023-04-03 04:05:04,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:05:04,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 5 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) Word has length 276 [2023-04-03 04:05:04,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:05:04,515 INFO L225 Difference]: With dead ends: 4631 [2023-04-03 04:05:04,516 INFO L226 Difference]: Without dead ends: 2600 [2023-04-03 04:05:04,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 641 SyntacticMatches, 2 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13458 ImplicationChecksByTransitivity, 74.4s TimeCoverageRelationStatistics Valid=745, Invalid=35067, Unknown=98, NotChecked=0, Total=35910 [2023-04-03 04:05:04,528 INFO L413 NwaCegarLoop]: 381 mSDtfsCounter, 66 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:05:04,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 1115 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 04:05:04,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2600 states. [2023-04-03 04:05:04,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2600 to 2313. [2023-04-03 04:05:04,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2313 states, 1417 states have (on average 1.2230063514467184) internal successors, (1733), 1453 states have internal predecessors, (1733), 589 states have call successors, (589), 274 states have call predecessors, (589), 306 states have return successors, (680), 595 states have call predecessors, (680), 586 states have call successors, (680) [2023-04-03 04:05:04,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3002 transitions. [2023-04-03 04:05:04,856 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3002 transitions. Word has length 276 [2023-04-03 04:05:04,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:05:04,858 INFO L495 AbstractCegarLoop]: Abstraction has 2313 states and 3002 transitions. [2023-04-03 04:05:04,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 5 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (49), 4 states have call predecessors, (49), 4 states have call successors, (49) [2023-04-03 04:05:04,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3002 transitions. [2023-04-03 04:05:04,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2023-04-03 04:05:04,862 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:05:04,862 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:05:04,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 04:05:05,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:05:05,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:05:05,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:05:05,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1674801683, now seen corresponding path program 1 times [2023-04-03 04:05:05,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:05:05,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495014254] [2023-04-03 04:05:05,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:05:05,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:05:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:05:05,379 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-04-03 04:05:05,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:05:05,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495014254] [2023-04-03 04:05:05,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495014254] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:05:05,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660871586] [2023-04-03 04:05:05,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:05:05,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:05:05,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:05:05,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:05:05,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 04:05:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:05:05,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 2680 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-03 04:05:05,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:05:05,946 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-04-03 04:05:05,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 04:05:05,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660871586] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:05:05,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 04:05:05,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2023-04-03 04:05:05,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846109191] [2023-04-03 04:05:05,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:05:05,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 04:05:05,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:05:05,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 04:05:05,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:05:05,949 INFO L87 Difference]: Start difference. First operand 2313 states and 3002 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2023-04-03 04:05:06,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:05:06,379 INFO L93 Difference]: Finished difference Result 4776 states and 6246 transitions. [2023-04-03 04:05:06,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:05:06,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) Word has length 320 [2023-04-03 04:05:06,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:05:06,391 INFO L225 Difference]: With dead ends: 4776 [2023-04-03 04:05:06,391 INFO L226 Difference]: Without dead ends: 2481 [2023-04-03 04:05:06,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:05:06,399 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 16 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:05:06,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1524 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 04:05:06,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2023-04-03 04:05:06,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 2255. [2023-04-03 04:05:06,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2255 states, 1374 states have (on average 1.210334788937409) internal successors, (1663), 1409 states have internal predecessors, (1663), 574 states have call successors, (574), 274 states have call predecessors, (574), 306 states have return successors, (655), 581 states have call predecessors, (655), 571 states have call successors, (655) [2023-04-03 04:05:06,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 2892 transitions. [2023-04-03 04:05:06,719 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 2892 transitions. Word has length 320 [2023-04-03 04:05:06,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:05:06,719 INFO L495 AbstractCegarLoop]: Abstraction has 2255 states and 2892 transitions. [2023-04-03 04:05:06,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (51), 3 states have call predecessors, (51), 2 states have call successors, (51) [2023-04-03 04:05:06,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 2892 transitions. [2023-04-03 04:05:06,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-04-03 04:05:06,723 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:05:06,723 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:05:06,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-04-03 04:05:06,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:05:06,933 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:05:06,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:05:06,934 INFO L85 PathProgramCache]: Analyzing trace with hash 2047475867, now seen corresponding path program 1 times [2023-04-03 04:05:06,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:05:06,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303446143] [2023-04-03 04:05:06,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:05:06,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:05:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:05:07,348 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-04-03 04:05:07,349 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:05:07,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303446143] [2023-04-03 04:05:07,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303446143] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:05:07,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:05:07,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:05:07,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663596211] [2023-04-03 04:05:07,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:05:07,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:05:07,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:05:07,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:05:07,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:05:07,352 INFO L87 Difference]: Start difference. First operand 2255 states and 2892 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (56), 3 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 04:05:07,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:05:07,695 INFO L93 Difference]: Finished difference Result 2794 states and 3598 transitions. [2023-04-03 04:05:07,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:05:07,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (56), 3 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 302 [2023-04-03 04:05:07,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:05:07,700 INFO L225 Difference]: With dead ends: 2794 [2023-04-03 04:05:07,701 INFO L226 Difference]: Without dead ends: 1272 [2023-04-03 04:05:07,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:05:07,707 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 386 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:05:07,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 1070 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 04:05:07,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2023-04-03 04:05:07,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2023-04-03 04:05:07,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 767 states have (on average 1.2020860495436767) internal successors, (922), 786 states have internal predecessors, (922), 323 states have call successors, (323), 168 states have call predecessors, (323), 181 states have return successors, (347), 323 states have call predecessors, (347), 320 states have call successors, (347) [2023-04-03 04:05:07,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1592 transitions. [2023-04-03 04:05:07,942 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1592 transitions. Word has length 302 [2023-04-03 04:05:07,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:05:07,943 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1592 transitions. [2023-04-03 04:05:07,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (56), 3 states have call predecessors, (56), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 04:05:07,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1592 transitions. [2023-04-03 04:05:07,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-04-03 04:05:07,946 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:05:07,946 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:05:07,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 04:05:07,947 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:05:07,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:05:07,947 INFO L85 PathProgramCache]: Analyzing trace with hash -649345311, now seen corresponding path program 1 times [2023-04-03 04:05:07,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:05:07,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588881774] [2023-04-03 04:05:07,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:05:07,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:05:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:05:09,576 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 43 proven. 16 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2023-04-03 04:05:09,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:05:09,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588881774] [2023-04-03 04:05:09,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588881774] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:05:09,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105924105] [2023-04-03 04:05:09,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:05:09,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:05:09,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:05:09,578 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:05:09,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 04:05:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:05:10,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 3154 conjuncts, 57 conjunts are in the unsatisfiable core [2023-04-03 04:05:10,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:05:11,032 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 26 proven. 91 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-04-03 04:05:11,033 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 04:05:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 23 proven. 42 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2023-04-03 04:05:12,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105924105] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 04:05:12,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [131944007] [2023-04-03 04:05:12,312 INFO L159 IcfgInterpreter]: Started Sifa with 210 locations of interest [2023-04-03 04:05:12,312 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 04:05:12,312 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 04:05:12,312 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 04:05:12,313 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 04:05:13,226 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 70 for LOIs [2023-04-03 04:05:13,598 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 84 for LOIs [2023-04-03 04:05:17,824 INFO L197 IcfgInterpreter]: Interpreting procedure ibmpex_register_bmc with input of size 81 for LOIs [2023-04-03 04:05:19,248 INFO L197 IcfgInterpreter]: Interpreting procedure init_completion with input of size 99 for LOIs [2023-04-03 04:05:19,345 INFO L197 IcfgInterpreter]: Interpreting procedure __init_waitqueue_head with input of size 123 for LOIs [2023-04-03 04:05:19,358 INFO L197 IcfgInterpreter]: Interpreting procedure dev_set_drvdata with input of size 59 for LOIs [2023-04-03 04:05:19,364 INFO L197 IcfgInterpreter]: Interpreting procedure IS_ERR with input of size 90 for LOIs [2023-04-03 04:05:20,379 INFO L197 IcfgInterpreter]: Interpreting procedure ibmpex_find_sensors with input of size 83 for LOIs