./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--bluetooth--btmrvl_sdio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--bluetooth--btmrvl_sdio.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2 --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 b0eb7f7856f720fe7809d2ae074eca6d5f8f52698134da2a3e5898955e84f487 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:37:08,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:37:08,915 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:37:08,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:37:08,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:37:08,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:37:08,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:37:08,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:37:08,965 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:37:08,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:37:08,968 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:37:08,969 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:37:08,969 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:37:08,971 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:37:08,972 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:37:08,972 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:37:08,972 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:37:08,973 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:37:08,973 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:37:08,974 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:37:08,976 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:37:08,976 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:37:08,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:37:08,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:37:08,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:37:08,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:37:08,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:37:08,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:37:08,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:37:08,979 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:37:08,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:37:08,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:37:08,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:37:08,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:37:08,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:37:08,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:08,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:37:08,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:37:08,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:37:08,982 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:37:08,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:37:08,986 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:37:08,986 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:37:08,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:37:08,987 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_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0eb7f7856f720fe7809d2ae074eca6d5f8f52698134da2a3e5898955e84f487 [2024-11-02 12:37:09,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:37:09,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:37:09,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:37:09,346 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:37:09,347 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:37:09,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--bluetooth--btmrvl_sdio.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-02 12:37:11,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:37:11,940 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:37:11,943 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--bluetooth--btmrvl_sdio.ko-entry_point.cil.out.i [2024-11-02 12:37:11,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/data/88fad08aa/0ebe99c9d8ae4eb7b503aacd76146a81/FLAG9e7101bba [2024-11-02 12:37:12,017 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/data/88fad08aa/0ebe99c9d8ae4eb7b503aacd76146a81 [2024-11-02 12:37:12,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:37:12,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:37:12,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:12,023 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:37:12,029 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:37:12,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:37:12" (1/1) ... [2024-11-02 12:37:12,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7faf9373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:12, skipping insertion in model container [2024-11-02 12:37:12,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:37:12" (1/1) ... [2024-11-02 12:37:12,158 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:37:12,895 WARN L1334 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5840] [2024-11-02 12:37:12,896 WARN L1334 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5841-5842] [2024-11-02 12:37:13,016 WARN L251 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_cc28ad0c-77ed-4911-8eaa-0786658d648a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--bluetooth--btmrvl_sdio.ko-entry_point.cil.out.i[172993,173006] [2024-11-02 12:37:13,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:13,887 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:37:14,162 WARN L1334 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5840] [2024-11-02 12:37:14,164 WARN L1334 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5841-5842] [2024-11-02 12:37:14,174 WARN L251 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_cc28ad0c-77ed-4911-8eaa-0786658d648a/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--bluetooth--btmrvl_sdio.ko-entry_point.cil.out.i[172993,173006] [2024-11-02 12:37:14,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:14,535 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:37:14,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14 WrapperNode [2024-11-02 12:37:14,536 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:14,538 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:14,538 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:37:14,538 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:37:14,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (1/1) ... [2024-11-02 12:37:14,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (1/1) ... [2024-11-02 12:37:14,823 INFO L138 Inliner]: procedures = 156, calls = 1285, calls flagged for inlining = 66, calls inlined = 60, statements flattened = 3283 [2024-11-02 12:37:14,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:14,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:37:14,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:37:14,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:37:14,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (1/1) ... [2024-11-02 12:37:14,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (1/1) ... [2024-11-02 12:37:14,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (1/1) ... [2024-11-02 12:37:14,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (1/1) ... [2024-11-02 12:37:14,982 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (1/1) ... [2024-11-02 12:37:15,007 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (1/1) ... [2024-11-02 12:37:15,033 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (1/1) ... [2024-11-02 12:37:15,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (1/1) ... [2024-11-02 12:37:15,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:37:15,087 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:37:15,087 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:37:15,087 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:37:15,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (1/1) ... [2024-11-02 12:37:15,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:15,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:15,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:37:15,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc28ad0c-77ed-4911-8eaa-0786658d648a/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:37:15,176 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-02 12:37:15,177 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-02 12:37:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:37:15,178 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_release_host [2024-11-02 12:37:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_release_host [2024-11-02 12:37:15,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-02 12:37:15,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:37:15,179 INFO L130 BoogieDeclarations]: Found specification of procedure btmrvl_sdio_unregister_dev [2024-11-02 12:37:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure btmrvl_sdio_unregister_dev [2024-11-02 12:37:15,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-02 12:37:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-02 12:37:15,180 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:37:15,180 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_get_host_pm_caps [2024-11-02 12:37:15,180 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_get_host_pm_caps [2024-11-02 12:37:15,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-02 12:37:15,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-02 12:37:15,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-02 12:37:15,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-02 12:37:15,180 INFO L130 BoogieDeclarations]: Found specification of procedure bt_err [2024-11-02 12:37:15,181 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_err [2024-11-02 12:37:15,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-02 12:37:15,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-02 12:37:15,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-02 12:37:15,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-02 12:37:15,242 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-02 12:37:15,242 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-02 12:37:15,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:37:15,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-02 12:37:15,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-02 12:37:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-02 12:37:15,243 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-02 12:37:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-11-02 12:37:15,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-11-02 12:37:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-02 12:37:15,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-02 12:37:15,243 INFO L130 BoogieDeclarations]: Found specification of procedure btmrvl_sdio_disable_host_int [2024-11-02 12:37:15,243 INFO L138 BoogieDeclarations]: Found implementation of procedure btmrvl_sdio_disable_host_int [2024-11-02 12:37:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:37:15,244 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:37:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_writesb [2024-11-02 12:37:15,244 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_writesb [2024-11-02 12:37:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_writeb [2024-11-02 12:37:15,244 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_writeb [2024-11-02 12:37:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:37:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:37:15,244 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_release_irq [2024-11-02 12:37:15,244 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_release_irq [2024-11-02 12:37:15,245 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_disable_func [2024-11-02 12:37:15,245 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_disable_func [2024-11-02 12:37:15,246 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-02 12:37:15,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-02 12:37:15,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:37:15,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:37:15,247 INFO L130 BoogieDeclarations]: Found specification of procedure btmrvl_sdio_resume [2024-11-02 12:37:15,247 INFO L138 BoogieDeclarations]: Found implementation of procedure btmrvl_sdio_resume [2024-11-02 12:37:15,248 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_claim_host [2024-11-02 12:37:15,248 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_claim_host [2024-11-02 12:37:15,248 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-02 12:37:15,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-02 12:37:15,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:37:15,249 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-02 12:37:15,250 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-02 12:37:15,250 INFO L130 BoogieDeclarations]: Found specification of procedure hci_recv_frame [2024-11-02 12:37:15,250 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_recv_frame [2024-11-02 12:37:15,250 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_readsb [2024-11-02 12:37:15,250 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_readsb [2024-11-02 12:37:15,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:37:15,250 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-02 12:37:15,250 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-02 12:37:15,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:37:15,251 INFO L130 BoogieDeclarations]: Found specification of procedure btmrvl_sdio_verify_fw_download [2024-11-02 12:37:15,251 INFO L138 BoogieDeclarations]: Found implementation of procedure btmrvl_sdio_verify_fw_download [2024-11-02 12:37:15,251 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2024-11-02 12:37:15,251 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2024-11-02 12:37:15,251 INFO L130 BoogieDeclarations]: Found specification of procedure btmrvl_sdio_suspend [2024-11-02 12:37:15,251 INFO L138 BoogieDeclarations]: Found implementation of procedure btmrvl_sdio_suspend [2024-11-02 12:37:15,251 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-02 12:37:15,251 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-02 12:37:15,251 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-02 12:37:15,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-02 12:37:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2024-11-02 12:37:15,252 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2024-11-02 12:37:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2024-11-02 12:37:15,252 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2024-11-02 12:37:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure btmrvl_sdio_poll_card_status [2024-11-02 12:37:15,252 INFO L138 BoogieDeclarations]: Found implementation of procedure btmrvl_sdio_poll_card_status [2024-11-02 12:37:15,252 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2024-11-02 12:37:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2024-11-02 12:37:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:37:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-02 12:37:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-02 12:37:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-02 12:37:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:37:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:37:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure sdio_readb [2024-11-02 12:37:15,253 INFO L138 BoogieDeclarations]: Found implementation of procedure sdio_readb [2024-11-02 12:37:15,847 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:37:15,851 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:37:16,479 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-02 12:37:22,953 INFO L? ?]: Removed 824 outVars from TransFormulas that were not future-live. [2024-11-02 12:37:22,953 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:37:23,708 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:37:23,708 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:37:23,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:23 BoogieIcfgContainer [2024-11-02 12:37:23,709 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:37:23,711 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:37:23,711 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:37:23,716 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:37:23,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:37:12" (1/3) ... [2024-11-02 12:37:23,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d46fa59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:23, skipping insertion in model container [2024-11-02 12:37:23,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:14" (2/3) ... [2024-11-02 12:37:23,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d46fa59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:23, skipping insertion in model container [2024-11-02 12:37:23,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:23" (3/3) ... [2024-11-02 12:37:23,720 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--bluetooth--btmrvl_sdio.ko-entry_point.cil.out.i [2024-11-02 12:37:23,740 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:37:23,741 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:37:23,846 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:37:23,853 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c808ab4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:37:23,853 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:37:23,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 668 states, 431 states have (on average 1.345707656612529) internal successors, (580), 439 states have internal predecessors, (580), 196 states have call successors, (196), 40 states have call predecessors, (196), 39 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-02 12:37:23,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-02 12:37:23,900 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:23,901 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:23,901 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:37:23,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:23,910 INFO L85 PathProgramCache]: Analyzing trace with hash 183146374, now seen corresponding path program 1 times [2024-11-02 12:37:23,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:23,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25613139] [2024-11-02 12:37:23,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:23,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:26,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:37:26,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:26,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25613139] [2024-11-02 12:37:26,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25613139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:26,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:26,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:37:26,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589675031] [2024-11-02 12:37:26,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:26,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:37:26,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:26,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:37:26,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:26,916 INFO L87 Difference]: Start difference. First operand has 668 states, 431 states have (on average 1.345707656612529) internal successors, (580), 439 states have internal predecessors, (580), 196 states have call successors, (196), 40 states have call predecessors, (196), 39 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-02 12:37:28,984 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 [] [2024-11-02 12:37:31,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:31,413 INFO L93 Difference]: Finished difference Result 1634 states and 2368 transitions. [2024-11-02 12:37:31,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:37:31,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 70 [2024-11-02 12:37:31,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:31,440 INFO L225 Difference]: With dead ends: 1634 [2024-11-02 12:37:31,440 INFO L226 Difference]: Without dead ends: 956 [2024-11-02 12:37:31,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:31,454 INFO L432 NwaCegarLoop]: 867 mSDtfsCounter, 421 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:31,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1721 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 216 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-02 12:37:31,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2024-11-02 12:37:31,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 952. [2024-11-02 12:37:31,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 621 states have (on average 1.3333333333333333) internal successors, (828), 625 states have internal predecessors, (828), 268 states have call successors, (268), 63 states have call predecessors, (268), 62 states have return successors, (267), 266 states have call predecessors, (267), 267 states have call successors, (267) [2024-11-02 12:37:31,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1363 transitions. [2024-11-02 12:37:31,668 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1363 transitions. Word has length 70 [2024-11-02 12:37:31,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:31,669 INFO L471 AbstractCegarLoop]: Abstraction has 952 states and 1363 transitions. [2024-11-02 12:37:31,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-02 12:37:31,670 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1363 transitions. [2024-11-02 12:37:31,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-02 12:37:31,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:31,680 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-02 12:37:31,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:37:31,680 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:37:31,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:31,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1948743052, now seen corresponding path program 1 times [2024-11-02 12:37:31,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:31,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804653955] [2024-11-02 12:37:31,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:31,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-02 12:37:34,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:34,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804653955] [2024-11-02 12:37:34,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804653955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:34,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:34,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:37:34,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605617516] [2024-11-02 12:37:34,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:34,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:37:34,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:34,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:37:34,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:34,217 INFO L87 Difference]: Start difference. First operand 952 states and 1363 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-02 12:37:36,270 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 [] [2024-11-02 12:37:39,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:39,345 INFO L93 Difference]: Finished difference Result 2343 states and 3352 transitions. [2024-11-02 12:37:39,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:37:39,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 71 [2024-11-02 12:37:39,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:39,358 INFO L225 Difference]: With dead ends: 2343 [2024-11-02 12:37:39,359 INFO L226 Difference]: Without dead ends: 1394 [2024-11-02 12:37:39,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:39,368 INFO L432 NwaCegarLoop]: 1346 mSDtfsCounter, 592 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:39,370 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 2188 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 267 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-11-02 12:37:39,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-11-02 12:37:39,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1391. [2024-11-02 12:37:39,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 915 states have (on average 1.3333333333333333) internal successors, (1220), 920 states have internal predecessors, (1220), 385 states have call successors, (385), 91 states have call predecessors, (385), 90 states have return successors, (384), 383 states have call predecessors, (384), 384 states have call successors, (384) [2024-11-02 12:37:39,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1989 transitions. [2024-11-02 12:37:39,487 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1989 transitions. Word has length 71 [2024-11-02 12:37:39,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:39,487 INFO L471 AbstractCegarLoop]: Abstraction has 1391 states and 1989 transitions. [2024-11-02 12:37:39,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-02 12:37:39,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1989 transitions. [2024-11-02 12:37:39,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-02 12:37:39,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:39,496 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:39,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:37:39,497 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:37:39,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:39,498 INFO L85 PathProgramCache]: Analyzing trace with hash -797838594, now seen corresponding path program 1 times [2024-11-02 12:37:39,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:39,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138796141] [2024-11-02 12:37:39,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:39,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms