./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire --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 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:15:30,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:15:30,459 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:15:30,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:15:30,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:15:30,516 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:15:30,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:15:30,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:15:30,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:15:30,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:15:30,519 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:15:30,520 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:15:30,521 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:15:30,521 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:15:30,522 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:15:30,522 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:15:30,523 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:15:30,524 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:15:30,524 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:15:30,525 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:15:30,525 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:15:30,531 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:15:30,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:15:30,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:15:30,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:15:30,533 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:15:30,534 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:15:30,534 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:15:30,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:15:30,535 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:15:30,536 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:15:30,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:15:30,565 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:15:30,565 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:15:30,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:30,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:15:30,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:15:30,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:15:30,566 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:15:30,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:15:30,567 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:15:30,568 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:15:30,568 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:15:30,568 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:15:30,569 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_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6eb9348af754e598a94b08c8ab1d1ba8b50e9f79e34a72936f4d36ffd0927628 [2023-11-23 21:15:30,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:15:30,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:15:30,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:15:30,897 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:15:30,898 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:15:30,899 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2023-11-23 21:15:34,090 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:15:34,653 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:15:34,654 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2023-11-23 21:15:34,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/data/402419f0a/35c1d4d71f0447389664ad791e0d2593/FLAGe2604b383 [2023-11-23 21:15:34,703 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/data/402419f0a/35c1d4d71f0447389664ad791e0d2593 [2023-11-23 21:15:34,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:15:34,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:15:34,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:34,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:15:34,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:15:34,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:34" (1/1) ... [2023-11-23 21:15:34,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ace44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:34, skipping insertion in model container [2023-11-23 21:15:34,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:34" (1/1) ... [2023-11-23 21:15:34,860 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:15:36,306 WARN L240 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_4e055496-e7ca-4f00-9009-53fd5df6aeac/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2023-11-23 21:15:36,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:36,369 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:15:36,829 WARN L240 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_4e055496-e7ca-4f00-9009-53fd5df6aeac/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i[176209,176222] [2023-11-23 21:15:36,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:36,923 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:15:36,931 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:15:36,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36 WrapperNode [2023-11-23 21:15:36,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:36,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:36,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:15:36,934 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:15:36,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,278 INFO L138 Inliner]: procedures = 146, calls = 1243, calls flagged for inlining = 65, calls inlined = 65, statements flattened = 3155 [2023-11-23 21:15:37,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:37,279 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:15:37,282 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:15:37,282 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:15:37,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,331 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,456 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,557 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:15:37,590 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:15:37,590 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:15:37,591 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:15:37,591 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:37,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:15:37,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:15:37,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e055496-e7ca-4f00-9009-53fd5df6aeac/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:15:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2023-11-23 21:15:37,684 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2023-11-23 21:15:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:15:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:15:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:15:37,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:15:37,687 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2023-11-23 21:15:37,687 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2023-11-23 21:15:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2023-11-23 21:15:37,688 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2023-11-23 21:15:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2023-11-23 21:15:37,688 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2023-11-23 21:15:37,688 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2023-11-23 21:15:37,689 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2023-11-23 21:15:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:15:37,689 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:15:37,689 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-23 21:15:37,690 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-23 21:15:37,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:15:37,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:15:37,692 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2023-11-23 21:15:37,692 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2023-11-23 21:15:37,692 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2023-11-23 21:15:37,693 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2023-11-23 21:15:37,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2023-11-23 21:15:37,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2023-11-23 21:15:37,694 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:15:37,695 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:15:37,695 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:15:37,696 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:15:37,696 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2023-11-23 21:15:37,696 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2023-11-23 21:15:37,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:15:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:15:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:15:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:15:37,697 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:15:37,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2023-11-23 21:15:37,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2023-11-23 21:15:37,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-23 21:15:37,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-23 21:15:37,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:15:37,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:15:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2023-11-23 21:15:37,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2023-11-23 21:15:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2023-11-23 21:15:37,699 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2023-11-23 21:15:37,699 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2023-11-23 21:15:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2023-11-23 21:15:37,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:15:37,700 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2023-11-23 21:15:37,700 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2023-11-23 21:15:37,700 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2023-11-23 21:15:37,701 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2023-11-23 21:15:37,701 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2023-11-23 21:15:37,701 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2023-11-23 21:15:37,701 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2023-11-23 21:15:37,702 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2023-11-23 21:15:37,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:15:37,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:15:37,703 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2023-11-23 21:15:37,704 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2023-11-23 21:15:37,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:15:37,705 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2023-11-23 21:15:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2023-11-23 21:15:37,705 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2023-11-23 21:15:37,705 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2023-11-23 21:15:37,706 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2023-11-23 21:15:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2023-11-23 21:15:37,706 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2023-11-23 21:15:37,706 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2023-11-23 21:15:37,706 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2023-11-23 21:15:37,707 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2023-11-23 21:15:37,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:15:37,708 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:15:37,708 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:15:37,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:15:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:15:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2023-11-23 21:15:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2023-11-23 21:15:37,709 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 21:15:37,709 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 21:15:37,710 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2023-11-23 21:15:37,710 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2023-11-23 21:15:37,710 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:15:37,711 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:15:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2023-11-23 21:15:37,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2023-11-23 21:15:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:15:37,712 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:15:37,712 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:15:37,713 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:15:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:15:37,713 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:15:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:15:37,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-23 21:15:37,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-23 21:15:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2023-11-23 21:15:37,714 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2023-11-23 21:15:37,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2023-11-23 21:15:37,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2023-11-23 21:15:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2023-11-23 21:15:37,715 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2023-11-23 21:15:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2023-11-23 21:15:37,715 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2023-11-23 21:15:37,715 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2023-11-23 21:15:37,716 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2023-11-23 21:15:37,716 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2023-11-23 21:15:37,716 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2023-11-23 21:15:37,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:15:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-23 21:15:37,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:15:37,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:15:38,379 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:15:38,383 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:15:44,482 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:15:46,323 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:15:46,323 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:15:46,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:46 BoogieIcfgContainer [2023-11-23 21:15:46,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:15:46,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:15:46,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:15:46,332 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:15:46,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:15:34" (1/3) ... [2023-11-23 21:15:46,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8f8115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:46, skipping insertion in model container [2023-11-23 21:15:46,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (2/3) ... [2023-11-23 21:15:46,334 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e8f8115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:46, skipping insertion in model container [2023-11-23 21:15:46,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:46" (3/3) ... [2023-11-23 21:15:46,335 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f-1.i [2023-11-23 21:15:46,358 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:15:46,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:15:46,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:15:46,446 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=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;@30657189, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:15:46,446 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:15:46,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 865 states, 571 states have (on average 1.3747810858143608) internal successors, (785), 579 states have internal predecessors, (785), 244 states have call successors, (244), 48 states have call predecessors, (244), 48 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) [2023-11-23 21:15:46,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 21:15:46,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:46,488 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-23 21:15:46,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:15:46,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:46,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2017517516, now seen corresponding path program 1 times [2023-11-23 21:15:46,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:46,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304443212] [2023-11-23 21:15:46,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:46,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-23 21:15:49,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:49,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304443212] [2023-11-23 21:15:49,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304443212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:49,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:49,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 21:15:49,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042215956] [2023-11-23 21:15:49,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:49,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:15:49,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:49,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:15:49,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:15:49,715 INFO L87 Difference]: Start difference. First operand has 865 states, 571 states have (on average 1.3747810858143608) internal successors, (785), 579 states have internal predecessors, (785), 244 states have call successors, (244), 48 states have call predecessors, (244), 48 states have return successors, (244), 244 states have call predecessors, (244), 244 states have call successors, (244) Second operand has 8 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-23 21:15:53,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:15:56,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:15:58,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:00,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:02,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:04,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:06,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:17,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:18,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:19,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:20,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:20,910 INFO L93 Difference]: Finished difference Result 1724 states and 2548 transitions. [2023-11-23 21:16:20,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:16:20,916 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 64 [2023-11-23 21:16:20,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:20,946 INFO L225 Difference]: With dead ends: 1724 [2023-11-23 21:16:20,946 INFO L226 Difference]: Without dead ends: 871 [2023-11-23 21:16:20,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:16:20,970 INFO L413 NwaCegarLoop]: 1128 mSDtfsCounter, 34 mSDsluCounter, 6040 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 7168 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:20,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 7168 Invalid, 1741 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1733 Invalid, 7 Unknown, 0 Unchecked, 30.8s Time] [2023-11-23 21:16:20,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2023-11-23 21:16:21,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 864. [2023-11-23 21:16:21,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 571 states have (on average 1.362521891418564) internal successors, (778), 578 states have internal predecessors, (778), 243 states have call successors, (243), 48 states have call predecessors, (243), 49 states have return successors, (246), 244 states have call predecessors, (246), 243 states have call successors, (246) [2023-11-23 21:16:21,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1267 transitions. [2023-11-23 21:16:21,150 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1267 transitions. Word has length 64 [2023-11-23 21:16:21,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:21,152 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1267 transitions. [2023-11-23 21:16:21,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.0) internal successors, (36), 8 states have internal predecessors, (36), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-23 21:16:21,153 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1267 transitions. [2023-11-23 21:16:21,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 21:16:21,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:21,170 INFO L195 NwaCegarLoop]: trace histogram [6, 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] [2023-11-23 21:16:21,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:21,171 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:21,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:21,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1118506769, now seen corresponding path program 1 times [2023-11-23 21:16:21,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:21,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055889211] [2023-11-23 21:16:21,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:21,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:23,739 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-23 21:16:23,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:23,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055889211] [2023-11-23 21:16:23,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055889211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:23,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:23,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 21:16:23,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929597351] [2023-11-23 21:16:23,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:23,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 21:16:23,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:23,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 21:16:23,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:16:23,745 INFO L87 Difference]: Start difference. First operand 864 states and 1267 transitions. Second operand has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 9 states have internal predecessors, (37), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)