./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/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_b475b620-ac2f-49ca-a961-69b807701db2/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/bin/utaipan-verify-mE87zJ7Ire/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_b475b620-ac2f-49ca-a961-69b807701db2/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_b475b620-ac2f-49ca-a961-69b807701db2/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 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:39:35,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:39:35,649 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:39:35,655 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:39:35,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:39:35,703 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:39:35,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:39:35,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:39:35,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:39:35,710 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:39:35,711 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:39:35,712 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:39:35,712 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:39:35,714 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:39:35,715 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:39:35,715 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:39:35,716 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:39:35,716 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:39:35,717 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:39:35,717 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:39:35,717 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:39:35,718 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:39:35,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:39:35,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:39:35,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:39:35,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:39:35,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:39:35,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:39:35,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:39:35,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:39:35,724 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:39:35,724 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:39:35,725 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:39:35,725 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:39:35,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:39:35,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:39:35,726 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:39:35,727 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:39:35,727 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:39:35,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:39:35,727 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:39:35,728 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:39:35,728 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:39:35,728 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:39:35,729 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_b475b620-ac2f-49ca-a961-69b807701db2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 271771768c3380f5979c29c79a53c5e282857dcb6c4c2b744d0fa4e6e2c0dd66 [2023-11-23 20:39:36,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:39:36,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:39:36,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:39:36,079 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:39:36,080 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:39:36,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/bin/utaipan-verify-mE87zJ7Ire/../../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 [2023-11-23 20:39:39,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:39:39,744 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:39:39,745 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/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 [2023-11-23 20:39:39,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/bin/utaipan-verify-mE87zJ7Ire/data/364499782/47accc1b606d46449d732f0bfc068765/FLAGe814ae1ce [2023-11-23 20:39:39,817 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/bin/utaipan-verify-mE87zJ7Ire/data/364499782/47accc1b606d46449d732f0bfc068765 [2023-11-23 20:39:39,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:39:39,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:39:39,832 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:39:39,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:39:39,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:39:39,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:39:39" (1/1) ... [2023-11-23 20:39:39,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b07ce6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:39, skipping insertion in model container [2023-11-23 20:39:39,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:39:39" (1/1) ... [2023-11-23 20:39:39,966 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:39:41,409 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_b475b620-ac2f-49ca-a961-69b807701db2/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] [2023-11-23 20:39:41,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:39:41,480 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:39:41,904 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_b475b620-ac2f-49ca-a961-69b807701db2/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] [2023-11-23 20:39:41,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:39:42,025 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:39:42,034 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:39:42,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42 WrapperNode [2023-11-23 20:39:42,035 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:39:42,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:39:42,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:39:42,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:39:42,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (1/1) ... [2023-11-23 20:39:42,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (1/1) ... [2023-11-23 20:39:42,269 INFO L138 Inliner]: procedures = 159, calls = 1260, calls flagged for inlining = 71, calls inlined = 71, statements flattened = 3369 [2023-11-23 20:39:42,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:39:42,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:39:42,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:39:42,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:39:42,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (1/1) ... [2023-11-23 20:39:42,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (1/1) ... [2023-11-23 20:39:42,301 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (1/1) ... [2023-11-23 20:39:42,301 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (1/1) ... [2023-11-23 20:39:42,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (1/1) ... [2023-11-23 20:39:42,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (1/1) ... [2023-11-23 20:39:42,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (1/1) ... [2023-11-23 20:39:42,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (1/1) ... [2023-11-23 20:39:42,571 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:39:42,573 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:39:42,574 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:39:42,574 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:39:42,575 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (1/1) ... [2023-11-23 20:39:42,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:39:42,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:39:42,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:39:42,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b475b620-ac2f-49ca-a961-69b807701db2/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:39:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_radio_text [2023-11-23 20:39:42,655 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_radio_text [2023-11-23 20:39:42,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:39:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:39:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:39:42,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:39:42,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:39:42,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:39:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:39:42,659 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:39:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2023-11-23 20:39:42,659 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2023-11-23 20:39:42,659 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_wait_stc [2023-11-23 20:39:42,660 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_wait_stc [2023-11-23 20:39:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_usecs [2023-11-23 20:39:42,660 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_usecs [2023-11-23 20:39:42,660 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_mute [2023-11-23 20:39:42,661 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_mute [2023-11-23 20:39:42,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:39:42,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:39:42,662 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2023-11-23 20:39:42,662 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2023-11-23 20:39:42,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:39:42,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:39:42,664 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_power_state [2023-11-23 20:39:42,664 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_power_state [2023-11-23 20:39:42,664 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_choose_econtrol_action [2023-11-23 20:39:42,665 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_choose_econtrol_action [2023-11-23 20:39:42,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_len [2023-11-23 20:39:42,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_len [2023-11-23 20:39:42,666 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:39:42,666 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:39:42,666 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 20:39:42,666 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 20:39:42,667 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_tune [2023-11-23 20:39:42,667 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_tune [2023-11-23 20:39:42,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:39:42,667 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:39:42,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:39:42,668 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 20:39:42,668 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 20:39:42,668 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-11-23 20:39:42,668 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-11-23 20:39:42,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:39:42,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:39:42,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_strlen [2023-11-23 20:39:42,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_strlen [2023-11-23 20:39:42,669 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2023-11-23 20:39:42,669 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2023-11-23 20:39:42,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 20:39:42,669 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 20:39:42,670 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_rds_buff [2023-11-23 20:39:42,670 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_rds_buff [2023-11-23 20:39:42,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 20:39:42,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 20:39:42,670 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:39:42,670 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:39:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:39:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_query_fill [2023-11-23 20:39:42,671 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_query_fill [2023-11-23 20:39:42,672 INFO L130 BoogieDeclarations]: Found specification of procedure validate_range [2023-11-23 20:39:42,672 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_range [2023-11-23 20:39:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_free [2023-11-23 20:39:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_free [2023-11-23 20:39:42,674 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_econtrol_integers [2023-11-23 20:39:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_econtrol_integers [2023-11-23 20:39:42,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:39:42,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:39:42,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:39:42,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:39:42,675 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_bulk_disable [2023-11-23 20:39:42,675 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_bulk_disable [2023-11-23 20:39:42,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:39:42,676 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_free [2023-11-23 20:39:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_free [2023-11-23 20:39:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-23 20:39:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-23 20:39:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_send_command [2023-11-23 20:39:42,677 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_send_command [2023-11-23 20:39:42,677 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_get_subdevdata [2023-11-23 20:39:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_get_subdevdata [2023-11-23 20:39:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2023-11-23 20:39:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2023-11-23 20:39:42,678 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_write_property [2023-11-23 20:39:42,678 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_write_property [2023-11-23 20:39:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:39:42,679 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-23 20:39:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-23 20:39:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:39:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:39:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_read_property [2023-11-23 20:39:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_read_property [2023-11-23 20:39:42,680 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 20:39:42,680 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 20:39:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_frequency [2023-11-23 20:39:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_frequency [2023-11-23 20:39:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:39:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:39:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_copy_from_user_7 [2023-11-23 20:39:42,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_copy_from_user_7 [2023-11-23 20:39:42,681 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:39:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:39:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 20:39:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 20:39:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 20:39:42,682 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 20:39:42,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:39:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_tx_tune_status [2023-11-23 20:39:42,683 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_tx_tune_status [2023-11-23 20:39:42,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_ret_val [2023-11-23 20:39:42,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_ret_val [2023-11-23 20:39:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_update_tune_status [2023-11-23 20:39:42,684 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_update_tune_status [2023-11-23 20:39:42,684 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_set_rds_ps_name [2023-11-23 20:39:42,685 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_set_rds_ps_name [2023-11-23 20:39:42,685 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_queryctrl [2023-11-23 20:39:42,685 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_queryctrl [2023-11-23 20:39:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure si4713_s_modulator [2023-11-23 20:39:42,686 INFO L138 BoogieDeclarations]: Found implementation of procedure si4713_s_modulator [2023-11-23 20:39:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:39:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-23 20:39:42,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:39:42,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:39:43,289 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:39:43,295 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:39:43,764 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:39:47,651 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:39:49,617 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:39:49,617 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:39:49,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:39:49 BoogieIcfgContainer [2023-11-23 20:39:49,620 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:39:49,624 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:39:49,624 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:39:49,629 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:39:49,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:39:39" (1/3) ... [2023-11-23 20:39:49,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc5e129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:39:49, skipping insertion in model container [2023-11-23 20:39:49,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:39:42" (2/3) ... [2023-11-23 20:39:49,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fc5e129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:39:49, skipping insertion in model container [2023-11-23 20:39:49,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:39:49" (3/3) ... [2023-11-23 20:39:49,635 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 [2023-11-23 20:39:49,659 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:39:49,659 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:39:49,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:39:49,784 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;@489bd12e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:39:49,784 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:39:49,799 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) [2023-11-23 20:39:49,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 20:39:49,862 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:39:49,864 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] [2023-11-23 20:39:49,865 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:39:49,871 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:39:49,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1406712601, now seen corresponding path program 1 times [2023-11-23 20:39:49,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:39:49,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456208376] [2023-11-23 20:39:49,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:39:49,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:39:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:39:50,806 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-23 20:39:50,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:39:50,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456208376] [2023-11-23 20:39:50,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456208376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:39:50,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:39:50,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:39:50,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117553584] [2023-11-23 20:39:50,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:39:50,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:39:50,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:39:50,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:39:50,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:39:50,874 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) [2023-11-23 20:39:53,538 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 20:39:55,575 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 20:39:57,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:39:57,247 INFO L93 Difference]: Finished difference Result 2265 states and 3320 transitions. [2023-11-23 20:39:57,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:39:57,251 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 [2023-11-23 20:39:57,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:39:57,288 INFO L225 Difference]: With dead ends: 2265 [2023-11-23 20:39:57,288 INFO L226 Difference]: Without dead ends: 1333 [2023-11-23 20:39:57,306 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 [2023-11-23 20:39:57,309 INFO L413 NwaCegarLoop]: 1215 mSDtfsCounter, 623 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s 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, 6.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:39:57,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 2401 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 291 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2023-11-23 20:39:57,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2023-11-23 20:39:57,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1332. [2023-11-23 20:39:57,504 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) [2023-11-23 20:39:57,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1332 states to 1332 states and 1932 transitions. [2023-11-23 20:39:57,523 INFO L78 Accepts]: Start accepts. Automaton has 1332 states and 1932 transitions. Word has length 73 [2023-11-23 20:39:57,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:39:57,524 INFO L495 AbstractCegarLoop]: Abstraction has 1332 states and 1932 transitions. [2023-11-23 20:39:57,524 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) [2023-11-23 20:39:57,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1332 states and 1932 transitions. [2023-11-23 20:39:57,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-23 20:39:57,545 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:39:57,546 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] [2023-11-23 20:39:57,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:39:57,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_lenErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:39:57,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:39:57,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1756490012, now seen corresponding path program 1 times [2023-11-23 20:39:57,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:39:57,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134680649] [2023-11-23 20:39:57,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:39:57,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:39:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:39:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2023-11-23 20:39:59,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:39:59,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134680649] [2023-11-23 20:39:59,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134680649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:39:59,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:39:59,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 20:39:59,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790295691] [2023-11-23 20:39:59,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:39:59,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 20:39:59,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:39:59,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 20:39:59,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-23 20:39:59,718 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) [2023-11-23 20:40:08,663 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 20:40:09,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:11,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:14,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:18,982 WARN L539 Checker$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 20:40:21,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:23,066 WARN L539 Checker$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 20:40:25,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:27,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:29,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:40:31,255 WARN L539 Checker$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 20:40:33,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []