./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ --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 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:03:35,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:03:36,035 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:03:36,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:03:36,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:03:36,083 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:03:36,084 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:03:36,084 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:03:36,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:03:36,090 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:03:36,091 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:03:36,092 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:03:36,093 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:03:36,094 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:03:36,095 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:03:36,095 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:03:36,096 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:03:36,096 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:03:36,096 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:03:36,097 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:03:36,099 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:03:36,099 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:03:36,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:03:36,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:03:36,101 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:03:36,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:03:36,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:03:36,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:03:36,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:03:36,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:03:36,104 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:03:36,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:03:36,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:03:36,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:03:36,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:03:36,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:03:36,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:03:36,106 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:03:36,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:03:36,107 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:03:36,107 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:03:36,107 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:03:36,108 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_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 [2023-11-19 05:03:36,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:03:36,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:03:36,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:03:36,520 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:03:36,521 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:03:36,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-19 05:03:39,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:03:40,106 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:03:40,108 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-19 05:03:40,161 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/data/63d45de8d/2f435dbc487e4b1e9bc3ad8772e4a909/FLAG99b3497ba [2023-11-19 05:03:40,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/data/63d45de8d/2f435dbc487e4b1e9bc3ad8772e4a909 [2023-11-19 05:03:40,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:03:40,188 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:03:40,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:03:40,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:03:40,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:03:40,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:40" (1/1) ... [2023-11-19 05:03:40,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13da05d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:40, skipping insertion in model container [2023-11-19 05:03:40,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:03:40" (1/1) ... [2023-11-19 05:03:40,310 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:03:41,905 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_2133dde9-fd07-4445-a507-277231816420/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2023-11-19 05:03:41,929 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:03:41,965 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:03:42,334 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_2133dde9-fd07-4445-a507-277231816420/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i[185985,185998] [2023-11-19 05:03:42,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:03:42,439 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:03:42,448 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:03:42,448 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42 WrapperNode [2023-11-19 05:03:42,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:03:42,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:03:42,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:03:42,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:03:42,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (1/1) ... [2023-11-19 05:03:42,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (1/1) ... [2023-11-19 05:03:42,727 INFO L138 Inliner]: procedures = 159, calls = 1260, calls flagged for inlining = 71, calls inlined = 71, statements flattened = 3369 [2023-11-19 05:03:42,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:03:42,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:03:42,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:03:42,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:03:42,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (1/1) ... [2023-11-19 05:03:42,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (1/1) ... [2023-11-19 05:03:42,786 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (1/1) ... [2023-11-19 05:03:42,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (1/1) ... [2023-11-19 05:03:42,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (1/1) ... [2023-11-19 05:03:42,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (1/1) ... [2023-11-19 05:03:42,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (1/1) ... [2023-11-19 05:03:42,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (1/1) ... [2023-11-19 05:03:42,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:03:42,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:03:42,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:03:42,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:03:42,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (1/1) ... [2023-11-19 05:03:42,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:03:43,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:03:43,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:03:43,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2133dde9-fd07-4445-a507-277231816420/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:03:43,104 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2023-11-19 05:03:43,105 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2023-11-19 05:03:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:03:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:03:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:03:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:03:43,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:03:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:03:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:03:43,106 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:03:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2023-11-19 05:03:43,106 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2023-11-19 05:03:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2023-11-19 05:03:43,106 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2023-11-19 05:03:43,107 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2023-11-19 05:03:43,107 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2023-11-19 05:03:43,107 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2023-11-19 05:03:43,107 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2023-11-19 05:03:43,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:03:43,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:03:43,107 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-19 05:03:43,109 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-19 05:03:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:03:43,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:03:43,109 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2023-11-19 05:03:43,109 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2023-11-19 05:03:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2023-11-19 05:03:43,110 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2023-11-19 05:03:43,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2023-11-19 05:03:43,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2023-11-19 05:03:43,113 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:03:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:03:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 05:03:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 05:03:43,114 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2023-11-19 05:03:43,114 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2023-11-19 05:03:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:03:43,115 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:03:43,116 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:03:43,116 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 05:03:43,120 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 05:03:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-19 05:03:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-19 05:03:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:03:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:03:43,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2023-11-19 05:03:43,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2023-11-19 05:03:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2023-11-19 05:03:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2023-11-19 05:03:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:03:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:03:43,122 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2023-11-19 05:03:43,122 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2023-11-19 05:03:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 05:03:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 05:03:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:03:43,123 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:03:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:03:43,123 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2023-11-19 05:03:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2023-11-19 05:03:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2023-11-19 05:03:43,124 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2023-11-19 05:03:43,124 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2023-11-19 05:03:43,125 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2023-11-19 05:03:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2023-11-19 05:03:43,127 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2023-11-19 05:03:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:03:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:03:43,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:03:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:03:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2023-11-19 05:03:43,128 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2023-11-19 05:03:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:03:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2023-11-19 05:03:43,130 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2023-11-19 05:03:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-19 05:03:43,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-19 05:03:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2023-11-19 05:03:43,131 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2023-11-19 05:03:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2023-11-19 05:03:43,131 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2023-11-19 05:03:43,131 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2023-11-19 05:03:43,131 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2023-11-19 05:03:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2023-11-19 05:03:43,132 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2023-11-19 05:03:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:03:43,132 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 05:03:43,132 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 05:03:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:03:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:03:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2023-11-19 05:03:43,133 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2023-11-19 05:03:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 05:03:43,133 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 05:03:43,133 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2023-11-19 05:03:43,133 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2023-11-19 05:03:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:03:43,134 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:03:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2023-11-19 05:03:43,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2023-11-19 05:03:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 05:03:43,134 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 05:03:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 05:03:43,134 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 05:03:43,134 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 05:03:43,134 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 05:03:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:03:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2023-11-19 05:03:43,135 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2023-11-19 05:03:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2023-11-19 05:03:43,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2023-11-19 05:03:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2023-11-19 05:03:43,135 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2023-11-19 05:03:43,135 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2023-11-19 05:03:43,136 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2023-11-19 05:03:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2023-11-19 05:03:43,136 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2023-11-19 05:03:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2023-11-19 05:03:43,136 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2023-11-19 05:03:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:03:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-19 05:03:43,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:03:43,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:03:43,701 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:03:43,709 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:03:44,163 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:03:49,563 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:03:51,928 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:03:51,929 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:03:51,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:51 BoogieIcfgContainer [2023-11-19 05:03:51,947 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:03:51,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:03:51,951 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:03:51,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:03:51,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:03:40" (1/3) ... [2023-11-19 05:03:51,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ce8762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:03:51, skipping insertion in model container [2023-11-19 05:03:51,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:03:42" (2/3) ... [2023-11-19 05:03:51,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ce8762 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:03:51, skipping insertion in model container [2023-11-19 05:03:51,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:03:51" (3/3) ... [2023-11-19 05:03:51,961 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-064368f-1-111_1a-drivers--media--radio--si4713-i2c.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-19 05:03:51,986 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:03:51,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:03:52,095 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:03:52,105 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;@705bba7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:03:52,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:03:52,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 921 states, 618 states have (on average 1.3996763754045307) internal successors, (865), 634 states have internal predecessors, (865), 249 states have call successors, (249), 53 states have call predecessors, (249), 52 states have return successors, (241), 241 states have call predecessors, (241), 241 states have call successors, (241) [2023-11-19 05:03:52,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-19 05:03:52,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:52,167 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:52,170 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:52,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:52,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1207511870, now seen corresponding path program 1 times [2023-11-19 05:03:52,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:52,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031063600] [2023-11-19 05:03:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:52,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:03:52,998 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 05:03:52,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:03:52,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031063600] [2023-11-19 05:03:53,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031063600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:03:53,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:03:53,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:03:53,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900755960] [2023-11-19 05:03:53,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:03:53,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:03:53,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:03:53,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:03:53,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:53,046 INFO L87 Difference]: Start difference. First operand has 921 states, 618 states have (on average 1.3996763754045307) internal successors, (865), 634 states have internal predecessors, (865), 249 states have call successors, (249), 53 states have call predecessors, (249), 52 states have return successors, (241), 241 states have call predecessors, (241), 241 states have call successors, (241) Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 05:03:55,619 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 [] [2023-11-19 05:03:57,630 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 [] [2023-11-19 05:03:59,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:03:59,026 INFO L93 Difference]: Finished difference Result 2265 states and 3320 transitions. [2023-11-19 05:03:59,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:03:59,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2023-11-19 05:03:59,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:03:59,071 INFO L225 Difference]: With dead ends: 2265 [2023-11-19 05:03:59,071 INFO L226 Difference]: Without dead ends: 1333 [2023-11-19 05:03:59,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:03:59,086 INFO L413 NwaCegarLoop]: 1215 mSDtfsCounter, 623 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-19 05:03:59,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 2401 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 291 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2023-11-19 05:03:59,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-11-19 05:03:59,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1332. [2023-11-19 05:03:59,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1332 states, 902 states have (on average 1.376940133037694) internal successors, (1242), 914 states have internal predecessors, (1242), 345 states have call successors, (345), 84 states have call predecessors, (345), 84 states have return successors, (345), 344 states have call predecessors, (345), 345 states have call successors, (345) [2023-11-19 05:03:59,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1932 transitions. [2023-11-19 05:03:59,253 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1932 transitions. Word has length 73 [2023-11-19 05:03:59,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:03:59,254 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 1932 transitions. [2023-11-19 05:03:59,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-19 05:03:59,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1932 transitions. [2023-11-19 05:03:59,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-19 05:03:59,267 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:03:59,267 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:03:59,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:03:59,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:03:59,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:03:59,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1001929149, now seen corresponding path program 1 times [2023-11-19 05:03:59,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:03:59,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959582133] [2023-11-19 05:03:59,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:03:59,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:03:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:04:01,152 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2023-11-19 05:04:01,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:04:01,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959582133] [2023-11-19 05:04:01,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959582133] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:04:01,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:04:01,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-19 05:04:01,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642506429] [2023-11-19 05:04:01,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:04:01,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-19 05:04:01,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:04:01,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-19 05:04:01,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:04:01,160 INFO L87 Difference]: Start difference. First operand 1332 states and 1932 transitions. Second operand has 9 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-19 05:04:09,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:11,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:12,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:17,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:19,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:21,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:23,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:25,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:27,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:29,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:04:31,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []