./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fa9a116c65e181b2439dd2b2c2873427a3e35414c05ff14dcd571e0747c2ab8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:17:55,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:17:55,803 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 07:17:55,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:17:55,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:17:55,881 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:17:55,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:17:55,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:17:55,888 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:17:55,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:17:55,891 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:17:55,891 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:17:55,892 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:17:55,893 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:17:55,896 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:17:55,896 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:17:55,897 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:17:55,897 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:17:55,898 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:17:55,899 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:17:55,899 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:17:55,904 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:17:55,905 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:17:55,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:17:55,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:17:55,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:17:55,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:17:55,907 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:17:55,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:17:55,911 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:17:55,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:17:55,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:17:55,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:17:55,914 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:17:55,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:17:55,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:17:55,916 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:17:55,916 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:17:55,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:17:55,917 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:17:55,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:17:55,918 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:17:55,918 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:17:55,919 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:17:55,919 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fa9a116c65e181b2439dd2b2c2873427a3e35414c05ff14dcd571e0747c2ab8 [2024-11-09 07:17:56,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:17:56,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:17:56,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:17:56,377 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:17:56,378 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:17:56,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-09 07:17:58,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:17:59,734 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:17:59,738 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i [2024-11-09 07:17:59,805 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/data/78680b39f/9ca4eac08d6c4d189c1b33ede634163c/FLAG1c8f463fc [2024-11-09 07:17:59,834 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/data/78680b39f/9ca4eac08d6c4d189c1b33ede634163c [2024-11-09 07:17:59,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:17:59,840 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:17:59,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:17:59,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:17:59,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:17:59,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:17:59" (1/1) ... [2024-11-09 07:17:59,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2586444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:17:59, skipping insertion in model container [2024-11-09 07:17:59,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:17:59" (1/1) ... [2024-11-09 07:18:00,033 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:18:02,117 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i[194089,194102] [2024-11-09 07:18:02,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:18:02,415 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:18:02,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [3435] [2024-11-09 07:18:02,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [3627] [2024-11-09 07:18:02,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [3635] [2024-11-09 07:18:02,825 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i[194089,194102] [2024-11-09 07:18:02,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:18:03,099 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:18:03,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03 WrapperNode [2024-11-09 07:18:03,101 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:18:03,102 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:18:03,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:18:03,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:18:03,113 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (1/1) ... [2024-11-09 07:18:03,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (1/1) ... [2024-11-09 07:18:03,619 INFO L138 Inliner]: procedures = 255, calls = 3736, calls flagged for inlining = 83, calls inlined = 73, statements flattened = 7261 [2024-11-09 07:18:03,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:18:03,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:18:03,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:18:03,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:18:03,634 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (1/1) ... [2024-11-09 07:18:03,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (1/1) ... [2024-11-09 07:18:03,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (1/1) ... [2024-11-09 07:18:03,754 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (1/1) ... [2024-11-09 07:18:04,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (1/1) ... [2024-11-09 07:18:04,298 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (1/1) ... [2024-11-09 07:18:04,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (1/1) ... [2024-11-09 07:18:04,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (1/1) ... [2024-11-09 07:18:04,462 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:18:04,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:18:04,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:18:04,466 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:18:04,467 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (1/1) ... [2024-11-09 07:18:04,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:18:04,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:04,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:18:04,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b29cd6a4-2258-4dcf-b105-a3d3571bbcea/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:18:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2024-11-09 07:18:04,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2024-11-09 07:18:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-09 07:18:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-09 07:18:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2024-11-09 07:18:04,568 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2024-11-09 07:18:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 07:18:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 07:18:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 07:18:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 07:18:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 07:18:04,569 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 07:18:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure send_argument [2024-11-09 07:18:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure send_argument [2024-11-09 07:18:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_pm_resume [2024-11-09 07:18:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_pm_resume [2024-11-09 07:18:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_get_lower_bound [2024-11-09 07:18:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_get_lower_bound [2024-11-09 07:18:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 07:18:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 07:18:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_release_accelerometer [2024-11-09 07:18:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_release_accelerometer [2024-11-09 07:18:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2024-11-09 07:18:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2024-11-09 07:18:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 07:18:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 07:18:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_release_light_sensor [2024-11-09 07:18:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_release_light_sensor [2024-11-09 07:18:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 07:18:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 07:18:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_applesmc_registers [2024-11-09 07:18:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_applesmc_registers [2024-11-09 07:18:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2024-11-09 07:18:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2024-11-09 07:18:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:18:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:18:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_calibrate [2024-11-09 07:18:04,573 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_calibrate [2024-11-09 07:18:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_release_key_backlight [2024-11-09 07:18:04,573 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_release_key_backlight [2024-11-09 07:18:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-09 07:18:04,573 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-09 07:18:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2024-11-09 07:18:04,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2024-11-09 07:18:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_read_entry [2024-11-09 07:18:04,574 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_read_entry [2024-11-09 07:18:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:18:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:18:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2024-11-09 07:18:04,576 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2024-11-09 07:18:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 07:18:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 07:18:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_remove_4 [2024-11-09 07:18:04,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_remove_4 [2024-11-09 07:18:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2024-11-09 07:18:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2024-11-09 07:18:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_write_key [2024-11-09 07:18:04,579 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_write_key [2024-11-09 07:18:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:18:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 07:18:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_backlight_set [2024-11-09 07:18:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_backlight_set [2024-11-09 07:18:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 07:18:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 07:18:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure send_byte [2024-11-09 07:18:04,582 INFO L138 BoogieDeclarations]: Found implementation of procedure send_byte [2024-11-09 07:18:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2024-11-09 07:18:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2024-11-09 07:18:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-09 07:18:04,583 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-09 07:18:04,583 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_init_smcreg [2024-11-09 07:18:04,584 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_init_smcreg [2024-11-09 07:18:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_has_key [2024-11-09 07:18:04,584 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_has_key [2024-11-09 07:18:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 07:18:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 07:18:04,584 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2024-11-09 07:18:04,585 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2024-11-09 07:18:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:18:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 07:18:04,585 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 07:18:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_get_entry_by_key [2024-11-09 07:18:04,585 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_get_entry_by_key [2024-11-09 07:18:04,585 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-09 07:18:04,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-09 07:18:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 07:18:04,586 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 07:18:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_device_init [2024-11-09 07:18:04,586 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_device_init [2024-11-09 07:18:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:18:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2024-11-09 07:18:04,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2024-11-09 07:18:04,586 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_destroy_nodes [2024-11-09 07:18:04,587 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_destroy_nodes [2024-11-09 07:18:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-09 07:18:04,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-09 07:18:04,589 INFO L130 BoogieDeclarations]: Found specification of procedure read_smc [2024-11-09 07:18:04,589 INFO L138 BoogieDeclarations]: Found implementation of procedure read_smc [2024-11-09 07:18:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_get_entry_by_index [2024-11-09 07:18:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_get_entry_by_index [2024-11-09 07:18:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:18:04,590 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_read_key [2024-11-09 07:18:04,590 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_read_key [2024-11-09 07:18:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:18:04,591 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_read_s16 [2024-11-09 07:18:04,591 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_read_s16 [2024-11-09 07:18:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-09 07:18:04,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-09 07:18:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_probe [2024-11-09 07:18:04,592 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_probe [2024-11-09 07:18:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:18:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2024-11-09 07:18:04,592 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2024-11-09 07:18:04,592 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_polled_device [2024-11-09 07:18:04,593 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_polled_device [2024-11-09 07:18:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-09 07:18:04,593 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-09 07:18:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_applesmc_registers [2024-11-09 07:18:04,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_applesmc_registers [2024-11-09 07:18:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2024-11-09 07:18:04,593 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2024-11-09 07:18:04,593 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_pm_restore [2024-11-09 07:18:04,593 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_pm_restore [2024-11-09 07:18:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-09 07:18:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-09 07:18:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_create_nodes [2024-11-09 07:18:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_create_nodes [2024-11-09 07:18:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:18:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure applesmc_destroy_smcreg [2024-11-09 07:18:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure applesmc_destroy_smcreg [2024-11-09 07:18:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:18:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:18:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-09 07:18:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-09 07:18:05,377 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:18:05,382 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:18:05,646 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 07:18:48,544 INFO L? ?]: Removed 801 outVars from TransFormulas that were not future-live. [2024-11-09 07:18:48,545 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:18:50,348 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:18:50,348 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:18:50,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:18:50 BoogieIcfgContainer [2024-11-09 07:18:50,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:18:50,352 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:18:50,352 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:18:50,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:18:50,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:17:59" (1/3) ... [2024-11-09 07:18:50,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b5234e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:18:50, skipping insertion in model container [2024-11-09 07:18:50,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:18:03" (2/3) ... [2024-11-09 07:18:50,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b5234e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:18:50, skipping insertion in model container [2024-11-09 07:18:50,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:18:50" (3/3) ... [2024-11-09 07:18:50,361 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--applesmc.ko-entry_point.cil.out.i [2024-11-09 07:18:50,387 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:18:50,387 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:18:50,498 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:18:50,506 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5110014c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:18:50,506 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:18:50,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 697 states, 436 states have (on average 1.389908256880734) internal successors, (606), 468 states have internal predecessors, (606), 201 states have call successors, (201), 59 states have call predecessors, (201), 58 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-09 07:18:50,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 07:18:50,536 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:50,537 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:18:50,538 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:18:50,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:50,545 INFO L85 PathProgramCache]: Analyzing trace with hash -62627878, now seen corresponding path program 1 times [2024-11-09 07:18:50,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:18:50,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595491708] [2024-11-09 07:18:50,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:50,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:21:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:21:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 07:21:58,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:21:58,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595491708] [2024-11-09 07:21:58,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595491708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:58,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:21:58,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:21:58,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617601435] [2024-11-09 07:21:58,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:58,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:21:58,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:58,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:21:58,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:21:58,883 INFO L87 Difference]: Start difference. First operand has 697 states, 436 states have (on average 1.389908256880734) internal successors, (606), 468 states have internal predecessors, (606), 201 states have call successors, (201), 59 states have call predecessors, (201), 58 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:22:01,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:22:02,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:02,854 INFO L93 Difference]: Finished difference Result 1471 states and 2158 transitions. [2024-11-09 07:22:02,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:22:02,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-11-09 07:22:02,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:02,881 INFO L225 Difference]: With dead ends: 1471 [2024-11-09 07:22:02,881 INFO L226 Difference]: Without dead ends: 770 [2024-11-09 07:22:02,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:22:02,898 INFO L432 NwaCegarLoop]: 897 mSDtfsCounter, 877 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:02,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1080 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 07:22:02,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2024-11-09 07:22:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 768. [2024-11-09 07:22:03,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 485 states have (on average 1.3608247422680413) internal successors, (660), 507 states have internal predecessors, (660), 215 states have call successors, (215), 68 states have call predecessors, (215), 67 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-09 07:22:03,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1086 transitions. [2024-11-09 07:22:03,050 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1086 transitions. Word has length 49 [2024-11-09 07:22:03,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:03,051 INFO L471 AbstractCegarLoop]: Abstraction has 768 states and 1086 transitions. [2024-11-09 07:22:03,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:22:03,052 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1086 transitions. [2024-11-09 07:22:03,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 07:22:03,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:03,058 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:22:03,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:22:03,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:22:03,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:03,060 INFO L85 PathProgramCache]: Analyzing trace with hash 145493275, now seen corresponding path program 1 times [2024-11-09 07:22:03,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:22:03,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753795212] [2024-11-09 07:22:03,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:03,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:53,386 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:24:53,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:53,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753795212] [2024-11-09 07:24:53,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753795212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:53,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:53,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:24:53,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373378961] [2024-11-09 07:24:53,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:53,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:24:53,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:53,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:24:53,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:53,392 INFO L87 Difference]: Start difference. First operand 768 states and 1086 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:24:55,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:24:56,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:56,897 INFO L93 Difference]: Finished difference Result 770 states and 1087 transitions. [2024-11-09 07:24:56,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:24:56,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2024-11-09 07:24:56,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:56,907 INFO L225 Difference]: With dead ends: 770 [2024-11-09 07:24:56,907 INFO L226 Difference]: Without dead ends: 767 [2024-11-09 07:24:56,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:56,910 INFO L432 NwaCegarLoop]: 877 mSDtfsCounter, 948 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:56,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [948 Valid, 877 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 07:24:56,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2024-11-09 07:24:56,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 767. [2024-11-09 07:24:56,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 485 states have (on average 1.3587628865979382) internal successors, (659), 506 states have internal predecessors, (659), 214 states have call successors, (214), 68 states have call predecessors, (214), 67 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-09 07:24:56,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1084 transitions. [2024-11-09 07:24:56,987 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1084 transitions. Word has length 50 [2024-11-09 07:24:56,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:56,988 INFO L471 AbstractCegarLoop]: Abstraction has 767 states and 1084 transitions. [2024-11-09 07:24:56,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:24:56,988 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1084 transitions. [2024-11-09 07:24:56,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 07:24:56,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:56,992 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:24:56,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:24:56,993 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:24:56,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:56,994 INFO L85 PathProgramCache]: Analyzing trace with hash 215056104, now seen corresponding path program 1 times [2024-11-09 07:24:56,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:56,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269535967] [2024-11-09 07:24:56,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:56,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:27:42,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:42,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269535967] [2024-11-09 07:27:42,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269535967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:42,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:42,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:27:42,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079970350] [2024-11-09 07:27:42,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:42,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:27:42,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:42,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:27:42,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:27:42,670 INFO L87 Difference]: Start difference. First operand 767 states and 1084 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:27:44,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:27:46,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:46,298 INFO L93 Difference]: Finished difference Result 769 states and 1085 transitions. [2024-11-09 07:27:46,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:27:46,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-11-09 07:27:46,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:46,312 INFO L225 Difference]: With dead ends: 769 [2024-11-09 07:27:46,312 INFO L226 Difference]: Without dead ends: 766 [2024-11-09 07:27:46,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:27:46,315 INFO L432 NwaCegarLoop]: 875 mSDtfsCounter, 945 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:46,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 875 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2024-11-09 07:27:46,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-11-09 07:27:46,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2024-11-09 07:27:46,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 485 states have (on average 1.3567010309278351) internal successors, (658), 505 states have internal predecessors, (658), 213 states have call successors, (213), 68 states have call predecessors, (213), 67 states have return successors, (211), 211 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-09 07:27:46,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1082 transitions. [2024-11-09 07:27:46,402 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1082 transitions. Word has length 51 [2024-11-09 07:27:46,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:46,405 INFO L471 AbstractCegarLoop]: Abstraction has 766 states and 1082 transitions. [2024-11-09 07:27:46,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:27:46,405 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1082 transitions. [2024-11-09 07:27:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 07:27:46,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:46,412 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:27:46,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:27:46,413 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:27:46,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:46,413 INFO L85 PathProgramCache]: Analyzing trace with hash 502066347, now seen corresponding path program 1 times [2024-11-09 07:27:46,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:46,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193883098] [2024-11-09 07:27:46,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:46,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:30:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:30:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:30:45,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:30:45,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193883098] [2024-11-09 07:30:45,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193883098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:30:45,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:30:45,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:30:45,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534218519] [2024-11-09 07:30:45,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:30:45,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:30:45,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:30:45,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:30:45,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:30:45,780 INFO L87 Difference]: Start difference. First operand 766 states and 1082 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:30:48,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:30:49,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:30:49,525 INFO L93 Difference]: Finished difference Result 768 states and 1083 transitions. [2024-11-09 07:30:49,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:30:49,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 53 [2024-11-09 07:30:49,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:30:49,534 INFO L225 Difference]: With dead ends: 768 [2024-11-09 07:30:49,534 INFO L226 Difference]: Without dead ends: 748 [2024-11-09 07:30:49,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:30:49,537 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 941 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:30:49,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 874 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2024-11-09 07:30:49,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2024-11-09 07:30:49,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2024-11-09 07:30:49,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 477 states have (on average 1.3605870020964361) internal successors, (649), 497 states have internal predecessors, (649), 203 states have call successors, (203), 68 states have call predecessors, (203), 67 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-11-09 07:30:49,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1053 transitions. [2024-11-09 07:30:49,619 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1053 transitions. Word has length 53 [2024-11-09 07:30:49,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:30:49,620 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 1053 transitions. [2024-11-09 07:30:49,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:30:49,621 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1053 transitions. [2024-11-09 07:30:49,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-09 07:30:49,625 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:30:49,625 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 07:30:49,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:30:49,626 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:30:49,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:30:49,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1027973912, now seen corresponding path program 1 times [2024-11-09 07:30:49,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:30:49,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190366096] [2024-11-09 07:30:49,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:30:49,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms