./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.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_99c21f2f-2721-452a-a82e-a49970b826af/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/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_99c21f2f-2721-452a-a82e-a49970b826af/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/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_99c21f2f-2721-452a-a82e-a49970b826af/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 4de76b02991c4f8780142b48e1370b1ba073d7148b74e77b2c83d6f21359d59e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:34:52,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:34:52,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:34:52,774 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:34:52,775 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:34:52,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:34:52,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:34:52,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:34:52,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:34:52,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:34:52,810 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:34:52,810 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:34:52,811 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:34:52,811 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:34:52,812 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:34:52,812 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:34:52,813 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:34:52,813 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:34:52,813 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:34:52,814 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:34:52,814 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:34:52,815 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:34:52,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:34:52,816 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:34:52,816 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:34:52,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:34:52,817 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:34:52,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:34:52,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:34:52,818 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:34:52,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:34:52,818 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:34:52,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:34:52,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:34:52,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:34:52,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:52,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:34:52,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:34:52,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:34:52,821 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:34:52,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:34:52,825 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:34:52,825 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:34:52,826 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:34:52,826 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_99c21f2f-2721-452a-a82e-a49970b826af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de76b02991c4f8780142b48e1370b1ba073d7148b74e77b2c83d6f21359d59e [2024-11-02 12:34:53,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:34:53,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:34:53,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:34:53,200 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:34:53,200 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:34:53,202 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-02 12:34:55,403 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:34:55,883 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:34:55,883 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2024-11-02 12:34:55,932 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/bin/utaipan-verify-DbMuA5NWw2/data/6626cdf30/20a6028c57d94115a4d73cdcef1335ec/FLAG9670bba8d [2024-11-02 12:34:55,956 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/bin/utaipan-verify-DbMuA5NWw2/data/6626cdf30/20a6028c57d94115a4d73cdcef1335ec [2024-11-02 12:34:55,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:34:55,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:34:55,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:55,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:34:55,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:34:55,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:55" (1/1) ... [2024-11-02 12:34:55,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@137819a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:55, skipping insertion in model container [2024-11-02 12:34:55,974 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:55" (1/1) ... [2024-11-02 12:34:56,126 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:34:58,083 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_99c21f2f-2721-452a-a82e-a49970b826af/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2024-11-02 12:34:58,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:58,331 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:34:58,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3542] [2024-11-02 12:34:58,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3549] [2024-11-02 12:34:58,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3557-3558] [2024-11-02 12:34:58,710 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_99c21f2f-2721-452a-a82e-a49970b826af/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2024-11-02 12:34:58,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:58,841 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:34:58,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58 WrapperNode [2024-11-02 12:34:58,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:58,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:58,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:34:58,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:34:58,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:58,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:59,073 INFO L138 Inliner]: procedures = 282, calls = 1556, calls flagged for inlining = 103, calls inlined = 86, statements flattened = 2929 [2024-11-02 12:34:59,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:59,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:34:59,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:34:59,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:34:59,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:59,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:59,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:59,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:59,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:59,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:59,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:59,292 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:59,315 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:34:59,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:34:59,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:34:59,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:34:59,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (1/1) ... [2024-11-02 12:34:59,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:59,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:34:59,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:34:59,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99c21f2f-2721-452a-a82e-a49970b826af/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:34:59,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-11-02 12:34:59,406 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-11-02 12:34:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2024-11-02 12:34:59,408 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2024-11-02 12:34:59,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:34:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-02 12:34:59,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-02 12:34:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-02 12:34:59,409 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-02 12:34:59,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wdm_mutex [2024-11-02 12:34:59,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wdm_mutex [2024-11-02 12:34:59,410 INFO L130 BoogieDeclarations]: Found specification of procedure recover_from_urb_loss [2024-11-02 12:34:59,410 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_from_urb_loss [2024-11-02 12:34:59,410 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2024-11-02 12:34:59,410 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2024-11-02 12:34:59,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-02 12:34:59,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-02 12:34:59,411 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2024-11-02 12:34:59,412 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2024-11-02 12:34:59,412 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2024-11-02 12:34:59,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2024-11-02 12:34:59,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2024-11-02 12:34:59,414 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2024-11-02 12:34:59,414 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_create [2024-11-02 12:34:59,414 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_create [2024-11-02 12:34:59,414 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-02 12:34:59,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-02 12:34:59,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-02 12:34:59,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-02 12:34:59,415 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_poll [2024-11-02 12:34:59,415 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_poll [2024-11-02 12:34:59,415 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-02 12:34:59,415 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-02 12:34:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:34:59,416 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:34:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-02 12:34:59,416 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-02 12:34:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-02 12:34:59,416 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-02 12:34:59,416 INFO L130 BoogieDeclarations]: Found specification of procedure clear_wdm_read_flag [2024-11-02 12:34:59,418 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_wdm_read_flag [2024-11-02 12:34:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_39 [2024-11-02 12:34:59,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_39 [2024-11-02 12:34:59,419 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_write [2024-11-02 12:34:59,419 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_write [2024-11-02 12:34:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:34:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-02 12:34:59,420 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-02 12:34:59,420 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_ioctl [2024-11-02 12:34:59,420 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_ioctl [2024-11-02 12:34:59,421 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_disconnect [2024-11-02 12:34:59,421 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_disconnect [2024-11-02 12:34:59,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:34:59,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_rlock_of_wdm_device [2024-11-02 12:34:59,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_rlock_of_wdm_device [2024-11-02 12:34:59,422 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-02 12:34:59,422 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-02 12:34:59,423 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-02 12:34:59,423 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-02 12:34:59,423 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_rxwork [2024-11-02 12:34:59,423 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_rxwork [2024-11-02 12:34:59,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:34:59,425 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2024-11-02 12:34:59,425 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2024-11-02 12:34:59,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:34:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-02 12:34:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-02 12:34:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2024-11-02 12:34:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2024-11-02 12:34:59,426 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-02 12:34:59,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-02 12:34:59,427 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-02 12:34:59,427 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-02 12:34:59,427 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2024-11-02 12:34:59,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2024-11-02 12:34:59,427 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2024-11-02 12:34:59,427 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2024-11-02 12:34:59,428 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-02 12:34:59,428 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-02 12:34:59,428 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-02 12:34:59,428 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-02 12:34:59,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wdm_mutex [2024-11-02 12:34:59,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wdm_mutex [2024-11-02 12:34:59,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wlock_of_wdm_device [2024-11-02 12:34:59,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wlock_of_wdm_device [2024-11-02 12:34:59,430 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-02 12:34:59,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-02 12:34:59,430 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2024-11-02 12:34:59,430 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2024-11-02 12:34:59,430 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2024-11-02 12:34:59,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2024-11-02 12:34:59,431 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_flush [2024-11-02 12:34:59,431 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_flush [2024-11-02 12:34:59,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wlock_of_wdm_device [2024-11-02 12:34:59,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wlock_of_wdm_device [2024-11-02 12:34:59,431 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2024-11-02 12:34:59,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2024-11-02 12:34:59,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:34:59,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2024-11-02 12:34:59,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2024-11-02 12:34:59,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:34:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-02 12:34:59,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-02 12:34:59,433 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-02 12:34:59,433 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-02 12:34:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-02 12:34:59,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-02 12:34:59,434 INFO L130 BoogieDeclarations]: Found specification of procedure kill_urbs [2024-11-02 12:34:59,435 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_urbs [2024-11-02 12:34:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2024-11-02 12:34:59,435 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2024-11-02 12:34:59,435 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-02 12:34:59,436 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-02 12:34:59,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:34:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-02 12:34:59,437 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-02 12:34:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-02 12:34:59,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-02 12:34:59,437 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2024-11-02 12:34:59,438 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2024-11-02 12:34:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-02 12:34:59,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-02 12:34:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-02 12:34:59,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-02 12:34:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_resume [2024-11-02 12:34:59,439 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_resume [2024-11-02 12:34:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:34:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-02 12:34:59,440 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-02 12:34:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-02 12:34:59,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-02 12:34:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:34:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-02 12:34:59,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-02 12:34:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:34:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2024-11-02 12:34:59,441 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2024-11-02 12:34:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-02 12:34:59,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-02 12:34:59,442 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2024-11-02 12:34:59,443 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2024-11-02 12:34:59,443 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-02 12:34:59,443 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-02 12:34:59,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_rlock_of_wdm_device [2024-11-02 12:34:59,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_rlock_of_wdm_device [2024-11-02 12:34:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2024-11-02 12:34:59,446 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2024-11-02 12:34:59,446 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device [2024-11-02 12:34:59,447 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device [2024-11-02 12:34:59,447 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-02 12:34:59,447 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-02 12:34:59,447 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-02 12:34:59,447 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-02 12:34:59,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:34:59,447 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2024-11-02 12:34:59,448 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2024-11-02 12:34:59,448 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2024-11-02 12:34:59,448 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2024-11-02 12:34:59,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:34:59,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:35:00,008 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:35:00,012 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:35:00,552 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-02 12:35:07,539 INFO L? ?]: Removed 1120 outVars from TransFormulas that were not future-live. [2024-11-02 12:35:07,539 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:35:08,379 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:35:08,379 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:35:08,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:08 BoogieIcfgContainer [2024-11-02 12:35:08,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:35:08,382 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:35:08,382 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:35:08,386 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:35:08,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:34:55" (1/3) ... [2024-11-02 12:35:08,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b95ef16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:08, skipping insertion in model container [2024-11-02 12:35:08,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:58" (2/3) ... [2024-11-02 12:35:08,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b95ef16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:08, skipping insertion in model container [2024-11-02 12:35:08,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:08" (3/3) ... [2024-11-02 12:35:08,389 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2024-11-02 12:35:08,409 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:35:08,410 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:35:08,514 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:35:08,520 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;@ab16561, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:35:08,521 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:35:08,530 INFO L276 IsEmpty]: Start isEmpty. Operand has 913 states, 523 states have (on average 1.315487571701721) internal successors, (688), 558 states have internal predecessors, (688), 316 states have call successors, (316), 73 states have call predecessors, (316), 72 states have return successors, (311), 310 states have call predecessors, (311), 311 states have call successors, (311) [2024-11-02 12:35:08,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-02 12:35:08,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:08,548 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:08,549 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:35:08,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:08,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1379282864, now seen corresponding path program 1 times [2024-11-02 12:35:08,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:08,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208568617] [2024-11-02 12:35:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:08,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:35:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:35:12,230 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-02 12:35:12,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:35:12,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208568617] [2024-11-02 12:35:12,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208568617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:35:12,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:35:12,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:35:12,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856004324] [2024-11-02 12:35:12,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:35:12,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:35:12,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:35:12,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:35:12,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:35:12,280 INFO L87 Difference]: Start difference. First operand has 913 states, 523 states have (on average 1.315487571701721) internal successors, (688), 558 states have internal predecessors, (688), 316 states have call successors, (316), 73 states have call predecessors, (316), 72 states have return successors, (311), 310 states have call predecessors, (311), 311 states have call successors, (311) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-02 12:35:14,353 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 12:35:16,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:35:20,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:35:22,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:35:24,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:35:24,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:35:24,511 INFO L93 Difference]: Finished difference Result 2643 states and 3854 transitions. [2024-11-02 12:35:24,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:35:24,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 140 [2024-11-02 12:35:24,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:35:24,562 INFO L225 Difference]: With dead ends: 2643 [2024-11-02 12:35:24,562 INFO L226 Difference]: Without dead ends: 1752 [2024-11-02 12:35:24,582 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 12:35:24,589 INFO L432 NwaCegarLoop]: 1185 mSDtfsCounter, 1212 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 2357 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2024-11-02 12:35:24,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 2357 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 242 Invalid, 5 Unknown, 0 Unchecked, 11.9s Time] [2024-11-02 12:35:24,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2024-11-02 12:35:24,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1742. [2024-11-02 12:35:24,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1011 states have (on average 1.3026706231454006) internal successors, (1317), 1054 states have internal predecessors, (1317), 589 states have call successors, (589), 142 states have call predecessors, (589), 141 states have return successors, (575), 573 states have call predecessors, (575), 575 states have call successors, (575) [2024-11-02 12:35:24,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2481 transitions. [2024-11-02 12:35:24,865 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2481 transitions. Word has length 140 [2024-11-02 12:35:24,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:35:24,867 INFO L471 AbstractCegarLoop]: Abstraction has 1742 states and 2481 transitions. [2024-11-02 12:35:24,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-02 12:35:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2481 transitions. [2024-11-02 12:35:24,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-02 12:35:24,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:35:24,877 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:24,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:35:24,877 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:35:24,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:35:24,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1822221471, now seen corresponding path program 1 times [2024-11-02 12:35:24,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:35:24,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653804880] [2024-11-02 12:35:24,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:35:24,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms