./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-08_1a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 40ab708e219f84bb7ba4362e0569b71b9ae13cfa586a42c01067e9be1995b8da --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:19:16,353 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:19:16,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:19:16,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:19:16,429 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:19:16,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:19:16,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:19:16,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:19:16,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:19:16,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:19:16,461 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:19:16,461 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:19:16,462 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:19:16,463 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:19:16,463 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:19:16,464 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:19:16,465 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:19:16,465 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:19:16,466 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:19:16,466 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:19:16,467 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:19:16,468 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:19:16,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:19:16,469 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:19:16,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:19:16,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:19:16,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:19:16,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:19:16,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:19:16,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:19:16,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:19:16,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:19:16,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:19:16,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:19:16,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:16,475 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:19:16,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:19:16,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:19:16,477 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:19:16,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:19:16,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:19:16,478 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:19:16,479 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:19:16,479 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:19:16,480 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_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40ab708e219f84bb7ba4362e0569b71b9ae13cfa586a42c01067e9be1995b8da [2023-11-23 21:19:16,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:19:16,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:19:16,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:19:16,808 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:19:16,808 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:19:16,810 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2023-11-23 21:19:19,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:19:20,601 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:19:20,601 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2023-11-23 21:19:20,659 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/data/66083d7c8/3622db51f44142d7a1c60f4875a4eb85/FLAGea1adccbf [2023-11-23 21:19:20,678 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/data/66083d7c8/3622db51f44142d7a1c60f4875a4eb85 [2023-11-23 21:19:20,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:19:20,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:19:20,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:20,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:19:20,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:19:20,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:20" (1/1) ... [2023-11-23 21:19:20,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736f0016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:20, skipping insertion in model container [2023-11-23 21:19:20,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:20" (1/1) ... [2023-11-23 21:19:20,875 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:19:23,693 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[302849,302862] [2023-11-23 21:19:23,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:23,873 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:19:23,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3521] [2023-11-23 21:19:23,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3523] [2023-11-23 21:19:23,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3546] [2023-11-23 21:19:23,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3548] [2023-11-23 21:19:23,998 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"); [3558-3559] [2023-11-23 21:19:24,003 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; addl %1,%0": "+m" (v->counter): "ir" (i)); [3664] [2023-11-23 21:19:24,004 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; subl %1,%0": "+m" (v->counter): "ir" (i)); [3671] [2023-11-23 21:19:24,004 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3679-3680] [2023-11-23 21:19:24,005 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; incl %0": "+m" (v->counter)); [3687] [2023-11-23 21:19:24,005 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; decl %0": "+m" (v->counter)); [3694] [2023-11-23 21:19:24,006 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3705-3706] [2023-11-23 21:19:24,006 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3709-3710] [2023-11-23 21:19:24,008 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3713-3714] [2023-11-23 21:19:24,009 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3717-3718] [2023-11-23 21:19:24,010 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; cmpxchgb %2,%1": "=a" (__ret), "+m" (*__ptr): "q" (__new), "0" (__old): "memory"); [3742-3743] [2023-11-23 21:19:24,011 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; cmpxchgw %2,%1": "=a" (__ret), "+m" (*__ptr___0): "r" (__new), "0" (__old): "memory"); [3747-3748] [2023-11-23 21:19:24,012 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; cmpxchgl %2,%1": "=a" (__ret), "+m" (*__ptr___1): "r" (__new), "0" (__old): "memory"); [3752-3753] [2023-11-23 21:19:24,012 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; cmpxchgq %2,%1": "=a" (__ret), "+m" (*__ptr___2): "r" (__new), "0" (__old): "memory"); [3757-3758] [2023-11-23 21:19:24,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [3810] [2023-11-23 21:19:24,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [3813] [2023-11-23 21:19:24,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (val)); [3815] [2023-11-23 21:19:24,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [3820] [2023-11-23 21:19:24,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [3823] [2023-11-23 21:19:24,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [3825] [2023-11-23 21:19:24,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [3830] [2023-11-23 21:19:24,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [3833] [2023-11-23 21:19:24,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [3835] [2023-11-23 21:19:24,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [3840] [2023-11-23 21:19:24,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [3843] [2023-11-23 21:19:24,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (val)); [3845] [2023-11-23 21:19:24,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [3863] [2023-11-23 21:19:24,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [3866] [2023-11-23 21:19:24,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [3868] [2023-11-23 21:19:24,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [3873] [2023-11-23 21:19:24,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [3876] [2023-11-23 21:19:24,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [3878] [2023-11-23 21:19:24,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [3883] [2023-11-23 21:19:24,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [3886] [2023-11-23 21:19:24,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [3888] [2023-11-23 21:19:24,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [3893] [2023-11-23 21:19:24,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [3896] [2023-11-23 21:19:24,028 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [3898] [2023-11-23 21:19:24,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3941] [2023-11-23 21:19:24,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3948] [2023-11-23 21:19:24,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4185] [2023-11-23 21:19:24,386 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7407] [2023-11-23 21:19:24,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8927] [2023-11-23 21:19:24,593 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[302849,302862] [2023-11-23 21:19:24,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:24,790 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:24,791 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:24,791 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:24,791 WARN L675 CHandler]: The function __cmpxchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:24,792 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:24,792 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:24,800 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:19:24,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24 WrapperNode [2023-11-23 21:19:24,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:24,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:24,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:19:24,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:19:24,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (1/1) ... [2023-11-23 21:19:24,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (1/1) ... [2023-11-23 21:19:25,250 INFO L138 Inliner]: procedures = 318, calls = 3906, calls flagged for inlining = 123, calls inlined = 81, statements flattened = 4858 [2023-11-23 21:19:25,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:25,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:19:25,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:19:25,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:19:25,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (1/1) ... [2023-11-23 21:19:25,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (1/1) ... [2023-11-23 21:19:25,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (1/1) ... [2023-11-23 21:19:25,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (1/1) ... [2023-11-23 21:19:25,517 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (1/1) ... [2023-11-23 21:19:25,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (1/1) ... [2023-11-23 21:19:25,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (1/1) ... [2023-11-23 21:19:25,635 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (1/1) ... [2023-11-23 21:19:25,692 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:19:25,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:19:25,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:19:25,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:19:25,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (1/1) ... [2023-11-23 21:19:25,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:25,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:19:25,735 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:19:25,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2ae43f3-5fda-417f-8359-f03175a02a5f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:19:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2023-11-23 21:19:25,787 INFO L130 BoogieDeclarations]: Found specification of procedure smi_stats_proc_open [2023-11-23 21:19:25,788 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_stats_proc_open [2023-11-23 21:19:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-23 21:19:25,788 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-23 21:19:25,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:19:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2023-11-23 21:19:25,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2023-11-23 21:19:25,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:19:25,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:19:25,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:19:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:19:25,791 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:19:25,791 INFO L130 BoogieDeclarations]: Found specification of procedure intf_find_seq [2023-11-23 21:19:25,791 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_find_seq [2023-11-23 21:19:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-23 21:19:25,792 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-23 21:19:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:19:25,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:19:25,792 INFO L130 BoogieDeclarations]: Found specification of procedure handle_read_event_rsp [2023-11-23 21:19:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_read_event_rsp [2023-11-23 21:19:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2023-11-23 21:19:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2023-11-23 21:19:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_cmd [2023-11-23 21:19:25,793 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_cmd [2023-11-23 21:19:25,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2023-11-23 21:19:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2023-11-23 21:19:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_poll [2023-11-23 21:19:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_poll [2023-11-23 21:19:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_cmd [2023-11-23 21:19:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_cmd [2023-11-23 21:19:25,794 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmc_rsp [2023-11-23 21:19:25,794 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmc_rsp [2023-11-23 21:19:25,795 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:19:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:19:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:19:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:19:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure __write_once_size [2023-11-23 21:19:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure __write_once_size [2023-11-23 21:19:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure format_lan_msg [2023-11-23 21:19:25,796 INFO L138 BoogieDeclarations]: Found implementation of procedure format_lan_msg [2023-11-23 21:19:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-23 21:19:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-23 21:19:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:19:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:19:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2023-11-23 21:19:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2023-11-23 21:19:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure copy_event_into_recv_msg [2023-11-23 21:19:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_event_into_recv_msg [2023-11-23 21:19:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_panic_request_and_wait [2023-11-23 21:19:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_panic_request_and_wait [2023-11-23 21:19:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:19:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:19:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-11-23 21:19:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-11-23 21:19:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure handle_oem_get_msg_cmd [2023-11-23 21:19:25,799 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_oem_get_msg_cmd [2023-11-23 21:19:25,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:19:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:19:25,800 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:19:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2023-11-23 21:19:25,800 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2023-11-23 21:19:25,800 INFO L130 BoogieDeclarations]: Found specification of procedure need_waiter [2023-11-23 21:19:25,801 INFO L138 BoogieDeclarations]: Found implementation of procedure need_waiter [2023-11-23 21:19:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:19:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:19:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:19:25,802 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:19:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure smi_send [2023-11-23 21:19:25,802 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_send [2023-11-23 21:19:25,802 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-23 21:19:25,803 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-23 21:19:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure smi_add_send_msg [2023-11-23 21:19:25,804 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_add_send_msg [2023-11-23 21:19:25,804 INFO L130 BoogieDeclarations]: Found specification of procedure intf_next_seq [2023-11-23 21:19:25,804 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_next_seq [2023-11-23 21:19:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:19:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:19:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure find_cmd_rcvr [2023-11-23 21:19:25,805 INFO L138 BoogieDeclarations]: Found implementation of procedure find_cmd_rcvr [2023-11-23 21:19:25,805 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2023-11-23 21:19:25,805 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2023-11-23 21:19:25,806 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:19:25,807 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:19:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 21:19:25,807 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 21:19:25,807 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:19:25,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:19:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:19:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:19:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure i_ipmi_request [2023-11-23 21:19:25,808 INFO L138 BoogieDeclarations]: Found implementation of procedure i_ipmi_request [2023-11-23 21:19:25,808 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_init_msghandler [2023-11-23 21:19:25,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_init_msghandler [2023-11-23 21:19:25,810 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:19:25,813 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:19:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:19:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2023-11-23 21:19:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2023-11-23 21:19:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-23 21:19:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-23 21:19:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:19:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2023-11-23 21:19:25,816 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2023-11-23 21:19:25,821 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2023-11-23 21:19:25,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2023-11-23 21:19:25,822 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-23 21:19:25,822 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-23 21:19:25,822 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-11-23 21:19:25,822 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-11-23 21:19:25,822 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_recv_msg [2023-11-23 21:19:25,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_recv_msg [2023-11-23 21:19:25,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:19:25,822 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_rsp [2023-11-23 21:19:25,823 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_rsp [2023-11-23 21:19:25,823 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_err_response [2023-11-23 21:19:25,823 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_err_response [2023-11-23 21:19:25,823 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2023-11-23 21:19:25,826 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2023-11-23 21:19:25,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:19:25,826 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:19:25,826 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-11-23 21:19:25,826 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-11-23 21:19:25,826 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2023-11-23 21:19:25,827 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2023-11-23 21:19:25,827 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-11-23 21:19:25,827 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-11-23 21:19:25,827 INFO L130 BoogieDeclarations]: Found specification of procedure smi_ipmb_proc_open [2023-11-23 21:19:25,827 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_ipmb_proc_open [2023-11-23 21:19:25,827 INFO L130 BoogieDeclarations]: Found specification of procedure maintenance_mode_update [2023-11-23 21:19:25,827 INFO L138 BoogieDeclarations]: Found implementation of procedure maintenance_mode_update [2023-11-23 21:19:25,827 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:19:25,828 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:19:25,828 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-23 21:19:25,828 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-23 21:19:25,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:19:25,829 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-23 21:19:25,829 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-11-23 21:19:25,829 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 21:19:25,829 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 21:19:25,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:19:25,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:19:25,830 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-23 21:19:25,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-23 21:19:25,830 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_addr [2023-11-23 21:19:25,830 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_addr [2023-11-23 21:19:25,830 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2023-11-23 21:19:25,830 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2023-11-23 21:19:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:19:25,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:19:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:19:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_rsp [2023-11-23 21:19:25,831 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_rsp [2023-11-23 21:19:25,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:19:25,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:19:25,832 INFO L130 BoogieDeclarations]: Found specification of procedure smi_version_proc_open [2023-11-23 21:19:25,832 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_version_proc_open [2023-11-23 21:19:25,832 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2023-11-23 21:19:25,832 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2023-11-23 21:19:25,832 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_bcast_addr [2023-11-23 21:19:25,832 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_bcast_addr [2023-11-23 21:19:25,833 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-23 21:19:25,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-23 21:19:25,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:19:25,833 INFO L130 BoogieDeclarations]: Found specification of procedure send_channel_info_cmd [2023-11-23 21:19:25,833 INFO L138 BoogieDeclarations]: Found implementation of procedure send_channel_info_cmd [2023-11-23 21:19:25,833 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-23 21:19:25,833 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-23 21:19:25,833 INFO L130 BoogieDeclarations]: Found specification of procedure format_ipmb_msg [2023-11-23 21:19:25,834 INFO L138 BoogieDeclarations]: Found implementation of procedure format_ipmb_msg [2023-11-23 21:19:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:19:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-11-23 21:19:25,834 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-11-23 21:19:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2023-11-23 21:19:25,834 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2023-11-23 21:19:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:19:25,834 INFO L130 BoogieDeclarations]: Found specification of procedure handle_one_recv_msg [2023-11-23 21:19:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_one_recv_msg [2023-11-23 21:19:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure intf_err_seq [2023-11-23 21:19:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_err_seq [2023-11-23 21:19:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:19:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:19:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-23 21:19:25,835 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-23 21:19:25,835 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-23 21:19:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-23 21:19:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:19:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:19:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_timeout [2023-11-23 21:19:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_timeout [2023-11-23 21:19:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_smi_msg [2023-11-23 21:19:25,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_smi_msg [2023-11-23 21:19:25,836 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:19:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:19:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2023-11-23 21:19:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2023-11-23 21:19:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2023-11-23 21:19:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2023-11-23 21:19:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure is_lan_addr [2023-11-23 21:19:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lan_addr [2023-11-23 21:19:25,837 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:19:25,837 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:19:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2023-11-23 21:19:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2023-11-23 21:19:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure smi_recv_tasklet [2023-11-23 21:19:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_recv_tasklet [2023-11-23 21:19:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure ipmb_checksum [2023-11-23 21:19:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmb_checksum [2023-11-23 21:19:25,838 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2023-11-23 21:19:25,838 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2023-11-23 21:19:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2023-11-23 21:19:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2023-11-23 21:19:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:19:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:19:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:19:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2023-11-23 21:19:25,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2023-11-23 21:19:25,839 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-23 21:19:25,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:19:25,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:19:26,872 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:19:26,878 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:19:27,638 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:19:39,491 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:19:41,639 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:19:41,639 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:19:41,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:41 BoogieIcfgContainer [2023-11-23 21:19:41,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:19:41,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:19:41,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:19:41,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:19:41,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:19:20" (1/3) ... [2023-11-23 21:19:41,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49edd96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:41, skipping insertion in model container [2023-11-23 21:19:41,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:24" (2/3) ... [2023-11-23 21:19:41,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49edd96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:41, skipping insertion in model container [2023-11-23 21:19:41,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:41" (3/3) ... [2023-11-23 21:19:41,659 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2023-11-23 21:19:41,683 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:19:41,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:19:41,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:19:41,810 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34c7948e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:19:41,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:19:41,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 1495 states, 919 states have (on average 1.3928182807399347) internal successors, (1280), 1005 states have internal predecessors, (1280), 475 states have call successors, (475), 100 states have call predecessors, (475), 99 states have return successors, (457), 437 states have call predecessors, (457), 457 states have call successors, (457) [2023-11-23 21:19:41,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2023-11-23 21:19:41,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:41,878 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:41,879 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:41,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:41,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1247538232, now seen corresponding path program 1 times [2023-11-23 21:19:41,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:41,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699795836] [2023-11-23 21:19:41,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:41,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:44,951 INFO L134 CoverageAnalysis]: Checked inductivity of 7965 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7965 trivial. 0 not checked. [2023-11-23 21:19:44,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:44,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699795836] [2023-11-23 21:19:44,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699795836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:44,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:44,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:19:44,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082022830] [2023-11-23 21:19:44,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:44,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:19:44,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:45,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:19:45,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:45,017 INFO L87 Difference]: Start difference. First operand has 1495 states, 919 states have (on average 1.3928182807399347) internal successors, (1280), 1005 states have internal predecessors, (1280), 475 states have call successors, (475), 100 states have call predecessors, (475), 99 states have return successors, (457), 437 states have call predecessors, (457), 457 states have call successors, (457) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-11-23 21:19:46,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:47,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:51,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:51,121 INFO L93 Difference]: Finished difference Result 4198 states and 6220 transitions. [2023-11-23 21:19:51,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:19:51,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 551 [2023-11-23 21:19:51,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:51,181 INFO L225 Difference]: With dead ends: 4198 [2023-11-23 21:19:51,182 INFO L226 Difference]: Without dead ends: 2769 [2023-11-23 21:19:51,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:19:51,201 INFO L413 NwaCegarLoop]: 2025 mSDtfsCounter, 1983 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1983 SdHoareTripleChecker+Valid, 4007 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:51,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1983 Valid, 4007 Invalid, 373 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-23 21:19:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2023-11-23 21:19:51,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2023-11-23 21:19:51,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 1739 states have (on average 1.3852788959171938) internal successors, (2409), 1870 states have internal predecessors, (2409), 838 states have call successors, (838), 192 states have call predecessors, (838), 191 states have return successors, (837), 797 states have call predecessors, (837), 837 states have call successors, (837) [2023-11-23 21:19:51,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4084 transitions. [2023-11-23 21:19:51,550 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4084 transitions. Word has length 551 [2023-11-23 21:19:51,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:51,564 INFO L495 AbstractCegarLoop]: Abstraction has 2769 states and 4084 transitions. [2023-11-23 21:19:51,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-11-23 21:19:51,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4084 transitions. [2023-11-23 21:19:51,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-11-23 21:19:51,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:51,592 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:51,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:19:51,592 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:51,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:51,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1747714566, now seen corresponding path program 1 times [2023-11-23 21:19:51,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:51,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89573620] [2023-11-23 21:19:51,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:51,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:52,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:53,897 INFO L134 CoverageAnalysis]: Checked inductivity of 7965 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7965 trivial. 0 not checked. [2023-11-23 21:19:53,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:53,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89573620] [2023-11-23 21:19:53,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89573620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:53,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:53,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:19:53,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204294876] [2023-11-23 21:19:53,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:53,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:19:53,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:53,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:19:53,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:19:53,906 INFO L87 Difference]: Start difference. First operand 2769 states and 4084 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2023-11-23 21:19:56,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:58,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []