./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.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_2a944d32-1ab5-4222-9f53-7df9509b10b7/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/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_2a944d32-1ab5-4222-9f53-7df9509b10b7/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/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_2a944d32-1ab5-4222-9f53-7df9509b10b7/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 1610c58515d73bdfdad707c23c4cb637664025646e23343fbae03dec8c78d8dc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:35,534 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:35,618 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:18:35,626 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:35,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:35,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:35,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:35,678 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:35,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:35,686 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:35,688 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:35,689 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:35,690 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:35,692 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:18:35,692 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:35,693 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:35,693 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:18:35,694 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:18:35,694 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:35,695 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:18:35,695 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:18:35,696 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:18:35,697 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:35,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:35,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:18:35,699 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:35,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:35,700 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:35,700 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:35,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:35,702 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:35,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:35,703 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:35,703 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:35,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:35,703 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:35,704 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:35,704 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:35,704 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:18:35,705 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:18:35,705 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:35,705 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:35,706 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:35,706 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:35,706 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_2a944d32-1ab5-4222-9f53-7df9509b10b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1610c58515d73bdfdad707c23c4cb637664025646e23343fbae03dec8c78d8dc [2023-11-23 21:18:35,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:36,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:36,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:36,026 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:36,027 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:36,028 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i [2023-11-23 21:18:39,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:39,707 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:39,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i [2023-11-23 21:18:39,752 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/bin/utaipan-verify-mE87zJ7Ire/data/9049dd3a1/dc4d6325bc6e4afc97cb95687164f345/FLAG19e7d9b73 [2023-11-23 21:18:39,774 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/bin/utaipan-verify-mE87zJ7Ire/data/9049dd3a1/dc4d6325bc6e4afc97cb95687164f345 [2023-11-23 21:18:39,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:39,783 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:39,786 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:39,786 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:39,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:39,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:39" (1/1) ... [2023-11-23 21:18:39,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659a398b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:39, skipping insertion in model container [2023-11-23 21:18:39,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:39" (1/1) ... [2023-11-23 21:18:39,959 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:18:41,440 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_2a944d32-1ab5-4222-9f53-7df9509b10b7/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i[176229,176242] [2023-11-23 21:18:41,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:41,507 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:18:41,854 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_2a944d32-1ab5-4222-9f53-7df9509b10b7/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i[176229,176242] [2023-11-23 21:18:41,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:42,066 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:18:42,075 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:18:42,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42 WrapperNode [2023-11-23 21:18:42,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:42,078 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:42,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:18:42,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:18:42,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (1/1) ... [2023-11-23 21:18:42,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (1/1) ... [2023-11-23 21:18:42,351 INFO L138 Inliner]: procedures = 146, calls = 1243, calls flagged for inlining = 65, calls inlined = 65, statements flattened = 3155 [2023-11-23 21:18:42,351 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:42,352 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:18:42,352 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:18:42,353 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:18:42,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (1/1) ... [2023-11-23 21:18:42,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (1/1) ... [2023-11-23 21:18:42,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (1/1) ... [2023-11-23 21:18:42,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (1/1) ... [2023-11-23 21:18:42,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (1/1) ... [2023-11-23 21:18:42,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (1/1) ... [2023-11-23 21:18:42,578 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (1/1) ... [2023-11-23 21:18:42,606 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (1/1) ... [2023-11-23 21:18:42,662 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:18:42,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:18:42,664 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:18:42,664 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:18:42,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (1/1) ... [2023-11-23 21:18:42,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:42,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:42,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:18:42,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a944d32-1ab5-4222-9f53-7df9509b10b7/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:18:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2023-11-23 21:18:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2023-11-23 21:18:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:18:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:18:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:18:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:18:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2023-11-23 21:18:42,756 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2023-11-23 21:18:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2023-11-23 21:18:42,756 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2023-11-23 21:18:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2023-11-23 21:18:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2023-11-23 21:18:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2023-11-23 21:18:42,757 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2023-11-23 21:18:42,757 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-23 21:18:42,758 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-23 21:18:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:18:42,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:18:42,758 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2023-11-23 21:18:42,759 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2023-11-23 21:18:42,759 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2023-11-23 21:18:42,759 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2023-11-23 21:18:42,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2023-11-23 21:18:42,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2023-11-23 21:18:42,760 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:18:42,760 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:18:42,760 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:18:42,761 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:18:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2023-11-23 21:18:42,761 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2023-11-23 21:18:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:18:42,761 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:18:42,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:18:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:18:42,762 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:18:42,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__copy_from_user_1 [2023-11-23 21:18:42,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__copy_from_user_1 [2023-11-23 21:18:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-23 21:18:42,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-23 21:18:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:18:42,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:18:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2023-11-23 21:18:42,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2023-11-23 21:18:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2023-11-23 21:18:42,764 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2023-11-23 21:18:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2023-11-23 21:18:42,765 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2023-11-23 21:18:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:18:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2023-11-23 21:18:42,765 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2023-11-23 21:18:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2023-11-23 21:18:42,766 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2023-11-23 21:18:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2023-11-23 21:18:42,766 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2023-11-23 21:18:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2023-11-23 21:18:42,767 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2023-11-23 21:18:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:18:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:18:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2023-11-23 21:18:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2023-11-23 21:18:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:18:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2023-11-23 21:18:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2023-11-23 21:18:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2023-11-23 21:18:42,769 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2023-11-23 21:18:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2023-11-23 21:18:42,769 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2023-11-23 21:18:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2023-11-23 21:18:42,770 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2023-11-23 21:18:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2023-11-23 21:18:42,770 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2023-11-23 21:18:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:18:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 21:18:42,771 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 21:18:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:18:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:18:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2023-11-23 21:18:42,772 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2023-11-23 21:18:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 21:18:42,772 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 21:18:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2023-11-23 21:18:42,772 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2023-11-23 21:18:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:18:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:18:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2023-11-23 21:18:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2023-11-23 21:18:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:18:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:18:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:18:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:18:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-11-23 21:18:42,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-11-23 21:18:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:18:42,775 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:18:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:18:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-23 21:18:42,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-23 21:18:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2023-11-23 21:18:42,776 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2023-11-23 21:18:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2023-11-23 21:18:42,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2023-11-23 21:18:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2023-11-23 21:18:42,777 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2023-11-23 21:18:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2023-11-23 21:18:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2023-11-23 21:18:42,778 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2023-11-23 21:18:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2023-11-23 21:18:42,778 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2023-11-23 21:18:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2023-11-23 21:18:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:18:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-23 21:18:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:18:42,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:18:43,450 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:18:43,459 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:18:49,890 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:18:51,785 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:18:51,786 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:18:51,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:51 BoogieIcfgContainer [2023-11-23 21:18:51,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:18:51,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:18:51,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:18:51,796 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:18:51,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:39" (1/3) ... [2023-11-23 21:18:51,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ae0f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:51, skipping insertion in model container [2023-11-23 21:18:51,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:42" (2/3) ... [2023-11-23 21:18:51,799 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ae0f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:51, skipping insertion in model container [2023-11-23 21:18:51,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:51" (3/3) ... [2023-11-23 21:18:51,801 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-radio-si4713-i2c-ko--111_1a--064368f.i [2023-11-23 21:18:51,825 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:18:51,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:18:51,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:18:51,913 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;@3f71b714, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:18:51,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:18:51,922 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 21:18:51,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-23 21:18:51,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:51,950 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 21:18:51,951 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:51,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:51,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2030460712, now seen corresponding path program 1 times [2023-11-23 21:18:51,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:51,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510336100] [2023-11-23 21:18:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:51,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:54,900 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 21:18:54,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:54,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510336100] [2023-11-23 21:18:54,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510336100] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:54,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:54,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 21:18:54,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377957508] [2023-11-23 21:18:54,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:54,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:18:54,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:54,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:18:54,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:18:54,976 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 21:18:59,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:01,221 WARN L539 Checker$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 21:19:03,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:05,264 WARN L539 Checker$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 21:19:07,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:09,340 WARN L539 Checker$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 21:19:11,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:21,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:23,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:25,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:27,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:28,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:28,857 INFO L93 Difference]: Finished difference Result 1724 states and 2548 transitions. [2023-11-23 21:19:28,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:19:28,861 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 21:19:28,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:28,899 INFO L225 Difference]: With dead ends: 1724 [2023-11-23 21:19:28,900 INFO L226 Difference]: Without dead ends: 871 [2023-11-23 21:19:28,913 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 21:19:28,917 INFO L413 NwaCegarLoop]: 1128 mSDtfsCounter, 34 mSDsluCounter, 6040 mSDsCounter, 0 mSdLazyCounter, 1730 mSolverCounterSat, 1 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 7168 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1730 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:28,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 7168 Invalid, 1741 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1730 Invalid, 10 Unknown, 0 Unchecked, 33.4s Time] [2023-11-23 21:19:28,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2023-11-23 21:19:29,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 864. [2023-11-23 21:19:29,040 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 21:19:29,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1267 transitions. [2023-11-23 21:19:29,055 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1267 transitions. Word has length 64 [2023-11-23 21:19:29,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:29,056 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1267 transitions. [2023-11-23 21:19:29,057 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 21:19:29,057 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1267 transitions. [2023-11-23 21:19:29,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 21:19:29,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:29,066 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 21:19:29,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:19:29,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:29,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:29,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1131449965, now seen corresponding path program 1 times [2023-11-23 21:19:29,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:29,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726231215] [2023-11-23 21:19:29,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:29,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:31,713 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 21:19:31,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:31,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726231215] [2023-11-23 21:19:31,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726231215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:31,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:31,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 21:19:31,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569759386] [2023-11-23 21:19:31,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:31,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 21:19:31,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:31,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 21:19:31,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:19:31,718 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)