./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje --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 2172e032e9cb68a2b0e155b37c2b059fdf8161b13e80793b149e9bd68636779e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:32:27,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:32:27,669 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 04:32:27,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:32:27,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:32:27,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:32:27,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:32:27,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:32:27,714 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:32:27,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:32:27,715 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:32:27,716 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:32:27,717 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:32:27,718 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:32:27,718 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:32:27,719 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:32:27,719 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:32:27,719 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:32:27,720 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:32:27,722 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:32:27,723 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:32:27,723 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:32:27,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:32:27,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:32:27,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:32:27,725 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:32:27,725 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:32:27,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:32:27,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:32:27,726 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:32:27,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:32:27,726 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:32:27,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:32:27,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:32:27,732 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:32:27,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:32:27,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:32:27,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:32:27,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:32:27,733 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:32:27,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:32:27,733 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:32:27,733 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:32:27,734 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:32:27,734 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_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2172e032e9cb68a2b0e155b37c2b059fdf8161b13e80793b149e9bd68636779e [2024-11-09 04:32:28,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:32:28,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:32:28,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:32:28,068 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:32:28,069 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:32:28,070 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i Unable to find full path for "g++" [2024-11-09 04:32:30,018 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:32:30,897 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:32:30,898 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i [2024-11-09 04:32:30,980 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/data/9a47685c2/2570d3fc09d34852ac5c8d7be3cddfa2/FLAG54fef092b [2024-11-09 04:32:31,000 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/data/9a47685c2/2570d3fc09d34852ac5c8d7be3cddfa2 [2024-11-09 04:32:31,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:32:31,005 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:32:31,007 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:32:31,008 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:32:31,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:32:31,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:32:31" (1/1) ... [2024-11-09 04:32:31,025 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc70844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:31, skipping insertion in model container [2024-11-09 04:32:31,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:32:31" (1/1) ... [2024-11-09 04:32:31,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:32:38,307 WARN L250 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_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i[705142,705155] [2024-11-09 04:32:38,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:32:38,801 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:32:38,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [3326] [2024-11-09 04:32:38,919 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [3333] [2024-11-09 04:32:38,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3379] [2024-11-09 04:32:38,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3382] [2024-11-09 04:32:38,923 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3385] [2024-11-09 04:32:38,923 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3388] [2024-11-09 04:32:39,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/exper_fp/work/current--X--drivers--X--defaultlinux-3.10-rc1.tar--X--32_7a--X--cpachecker/linux-3.10-rc1.tar/csd_deg_dscv/874/dscv_tempdir/dscv/ri/32_7a/drivers/mtd/ubi/vtbl.c.prepared"), "i" (953), "i" (12UL)); [4540-4541] [2024-11-09 04:32:39,316 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((int32_t *)argp), "i" (4UL)); [8700-8701] [2024-11-09 04:32:39,318 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" ((int32_t *)argp), "i" (4UL)); [8751-8752] [2024-11-09 04:32:39,319 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___1), "=r" (__val_gu___1): "0" ((int32_t *)argp), "i" (4UL)); [8764-8765] [2024-11-09 04:32:39,388 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int32_t *)argp): "ebx"); [9242] [2024-11-09 04:32:39,389 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int32_t *)argp): "ebx"); [9245] [2024-11-09 04:32:39,389 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int32_t *)argp): "ebx"); [9248] [2024-11-09 04:32:39,389 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int32_t *)argp): "ebx"); [9251] [2024-11-09 04:32:39,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int32_t *)argp): "ebx"); [9254] [2024-11-09 04:32:39,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((int32_t *)argp), "i" (4UL)); [9279-9280] [2024-11-09 04:32:39,401 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int32_t *)argp): "ebx"); [9464] [2024-11-09 04:32:39,401 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int32_t *)argp): "ebx"); [9467] [2024-11-09 04:32:39,402 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int32_t *)argp): "ebx"); [9470] [2024-11-09 04:32:39,402 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int32_t *)argp): "ebx"); [9473] [2024-11-09 04:32:39,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int32_t *)argp): "ebx"); [9476] [2024-11-09 04:32:39,408 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((int32_t *)argp), "i" (4UL)); [9498-9499] [2024-11-09 04:32:39,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [12662-12663] [2024-11-09 04:32:39,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [16843-16844] [2024-11-09 04:32:39,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [16848-16849] [2024-11-09 04:32:39,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [16853-16854] [2024-11-09 04:32:39,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___6->state): : "memory", "cc"); [16858-16859] [2024-11-09 04:32:39,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/work/ldvuser/exper_fp/work/current--X--drivers--X--defaultlinux-3.10-rc1.tar--X--32_7a--X--cpachecker/linux-3.10-rc1.tar/csd_deg_dscv/874/dscv_tempdir/dscv/ri/32_7a/drivers/mtd/ubi/attach.c.prepared"), "i" (219), "i" (12UL)); [17623-17624] [2024-11-09 04:32:40,249 WARN L250 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_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i[705142,705155] [2024-11-09 04:32:40,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:32:40,909 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:32:40,909 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40 WrapperNode [2024-11-09 04:32:40,909 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:32:40,911 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:32:40,911 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:32:40,911 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:32:40,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (1/1) ... [2024-11-09 04:32:41,297 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (1/1) ... [2024-11-09 04:32:42,230 INFO L138 Inliner]: procedures = 644, calls = 14360, calls flagged for inlining = 235, calls inlined = 208, statements flattened = 29952 [2024-11-09 04:32:42,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:32:42,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:32:42,232 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:32:42,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:32:42,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (1/1) ... [2024-11-09 04:32:42,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (1/1) ... [2024-11-09 04:32:42,557 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (1/1) ... [2024-11-09 04:32:42,558 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (1/1) ... [2024-11-09 04:32:43,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (1/1) ... [2024-11-09 04:32:43,666 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (1/1) ... [2024-11-09 04:32:43,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (1/1) ... [2024-11-09 04:32:43,960 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (1/1) ... [2024-11-09 04:32:44,139 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:32:44,141 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:32:44,141 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:32:44,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:32:44,142 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (1/1) ... [2024-11-09 04:32:44,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:32:44,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:44,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:32:44,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42846949-0f61-4e8f-a1fe-1b0b0c54f55f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:32:44,235 INFO L130 BoogieDeclarations]: Found specification of procedure volume_sysfs_init [2024-11-09 04:32:44,236 INFO L138 BoogieDeclarations]: Found implementation of procedure volume_sysfs_init [2024-11-09 04:32:44,236 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_ec_hdr [2024-11-09 04:32:44,236 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_ec_hdr [2024-11-09 04:32:44,236 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_unmap_leb [2024-11-09 04:32:44,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_unmap_leb [2024-11-09 04:32:44,237 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2024-11-09 04:32:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2024-11-09 04:32:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2024-11-09 04:32:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2024-11-09 04:32:44,238 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_resize_volume [2024-11-09 04:32:44,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_resize_volume [2024-11-09 04:32:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_free_internal_volumes [2024-11-09 04:32:44,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_free_internal_volumes [2024-11-09 04:32:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure __schedule_ubi_work [2024-11-09 04:32:44,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __schedule_ubi_work [2024-11-09 04:32:44,239 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_volume_notify [2024-11-09 04:32:44,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_volume_notify [2024-11-09 04:32:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 04:32:44,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 04:32:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_detach_mtd_dev [2024-11-09 04:32:44,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_detach_mtd_dev [2024-11-09 04:32:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure put_mtd_device [2024-11-09 04:32:44,240 INFO L138 BoogieDeclarations]: Found implementation of procedure put_mtd_device [2024-11-09 04:32:44,240 INFO L130 BoogieDeclarations]: Found specification of procedure erase_block [2024-11-09 04:32:44,241 INFO L138 BoogieDeclarations]: Found implementation of procedure erase_block [2024-11-09 04:32:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_pending [2024-11-09 04:32:44,241 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_pending [2024-11-09 04:32:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2024-11-09 04:32:44,241 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2024-11-09 04:32:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2024-11-09 04:32:44,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2024-11-09 04:32:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2024-11-09 04:32:44,241 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2024-11-09 04:32:44,241 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_read_leb [2024-11-09 04:32:44,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_read_leb [2024-11-09 04:32:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_do_get_device_info [2024-11-09 04:32:44,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_do_get_device_info [2024-11-09 04:32:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_cdev_ioctl [2024-11-09 04:32:44,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_cdev_ioctl [2024-11-09 04:32:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ckvol_mutex_of_ubi_device [2024-11-09 04:32:44,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ckvol_mutex_of_ubi_device [2024-11-09 04:32:44,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2024-11-09 04:32:44,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2024-11-09 04:32:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_sysfs_close [2024-11-09 04:32:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_sysfs_close [2024-11-09 04:32:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure vtbl_check [2024-11-09 04:32:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure vtbl_check [2024-11-09 04:32:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_vid_hdr [2024-11-09 04:32:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_vid_hdr [2024-11-09 04:32:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_cdev_ioctl [2024-11-09 04:32:44,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_cdev_ioctl [2024-11-09 04:32:44,296 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2024-11-09 04:32:44,297 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2024-11-09 04:32:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_compare_lebs [2024-11-09 04:32:44,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_compare_lebs [2024-11-09 04:32:44,297 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_get_fm_peb [2024-11-09 04:32:44,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_get_fm_peb [2024-11-09 04:32:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-09 04:32:44,302 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-09 04:32:44,302 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2024-11-09 04:32:44,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2024-11-09 04:32:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure vol_cdev_ioctl [2024-11-09 04:32:44,303 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_cdev_ioctl [2024-11-09 04:32:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_update_fastmap [2024-11-09 04:32:44,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_update_fastmap [2024-11-09 04:32:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure is_error_sane [2024-11-09 04:32:44,303 INFO L138 BoogieDeclarations]: Found implementation of procedure is_error_sane [2024-11-09 04:32:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_vid_hdr [2024-11-09 04:32:44,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_vid_hdr [2024-11-09 04:32:44,303 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vid_hdr [2024-11-09 04:32:44,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vid_hdr [2024-11-09 04:32:44,304 INFO L130 BoogieDeclarations]: Found specification of procedure rb_next [2024-11-09 04:32:44,304 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_next [2024-11-09 04:32:44,308 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_check_volume [2024-11-09 04:32:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_check_volume [2024-11-09 04:32:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_calc_data_len [2024-11-09 04:32:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_calc_data_len [2024-11-09 04:32:44,312 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_data [2024-11-09 04:32:44,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_data [2024-11-09 04:32:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_close [2024-11-09 04:32:44,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_close [2024-11-09 04:32:44,313 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_free_vid_hdr [2024-11-09 04:32:44,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_free_vid_hdr [2024-11-09 04:32:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:32:44,314 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-09 04:32:44,314 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-09 04:32:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure rb_link_node [2024-11-09 04:32:44,315 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_link_node [2024-11-09 04:32:44,315 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_find_av [2024-11-09 04:32:44,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_find_av [2024-11-09 04:32:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-09 04:32:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-09 04:32:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2024-11-09 04:32:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2024-11-09 04:32:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 04:32:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 04:32:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_ubi_work [2024-11-09 04:32:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_ubi_work [2024-11-09 04:32:44,316 INFO L130 BoogieDeclarations]: Found specification of procedure do_sync_erase___0 [2024-11-09 04:32:44,316 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sync_erase___0 [2024-11-09 04:32:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 04:32:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 04:32:44,317 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2024-11-09 04:32:44,317 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2024-11-09 04:32:44,322 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_ec_hdr [2024-11-09 04:32:44,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_ec_hdr [2024-11-09 04:32:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 04:32:44,327 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_not_bad [2024-11-09 04:32:44,327 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_not_bad [2024-11-09 04:32:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-09 04:32:44,328 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-09 04:32:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_div_by_eb [2024-11-09 04:32:44,328 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_div_by_eb [2024-11-09 04:32:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-09 04:32:44,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-09 04:32:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_calculate_reserved [2024-11-09 04:32:44,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_calculate_reserved [2024-11-09 04:32:44,328 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_debugfs_exit_dev [2024-11-09 04:32:44,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_debugfs_exit_dev [2024-11-09 04:32:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 04:32:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure validate_vid_hdr [2024-11-09 04:32:44,329 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_vid_hdr [2024-11-09 04:32:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_buf_mutex_of_ubi_device [2024-11-09 04:32:44,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_buf_mutex_of_ubi_device [2024-11-09 04:32:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure find_mean_wl_entry [2024-11-09 04:32:44,329 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mean_wl_entry [2024-11-09 04:32:44,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2024-11-09 04:32:44,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2024-11-09 04:32:44,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:32:44,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_move_mutex_of_ubi_device [2024-11-09 04:32:44,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_move_mutex_of_ubi_device [2024-11-09 04:32:44,330 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2024-11-09 04:32:44,332 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2024-11-09 04:32:44,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 04:32:44,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 04:32:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_data [2024-11-09 04:32:44,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_data [2024-11-09 04:32:44,337 INFO L130 BoogieDeclarations]: Found specification of procedure prot_queue_add [2024-11-09 04:32:44,338 INFO L138 BoogieDeclarations]: Found implementation of procedure prot_queue_add [2024-11-09 04:32:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2024-11-09 04:32:44,338 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2024-11-09 04:32:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2024-11-09 04:32:44,338 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2024-11-09 04:32:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_write [2024-11-09 04:32:44,338 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_write [2024-11-09 04:32:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-09 04:32:44,338 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-09 04:32:44,338 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2024-11-09 04:32:44,339 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2024-11-09 04:32:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2024-11-09 04:32:44,339 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2024-11-09 04:32:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure new_fm_vhdr [2024-11-09 04:32:44,339 INFO L138 BoogieDeclarations]: Found implementation of procedure new_fm_vhdr [2024-11-09 04:32:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure yield [2024-11-09 04:32:44,339 INFO L138 BoogieDeclarations]: Found implementation of procedure yield [2024-11-09 04:32:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2024-11-09 04:32:44,339 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2024-11-09 04:32:44,339 INFO L130 BoogieDeclarations]: Found specification of procedure find_wl_entry [2024-11-09 04:32:44,339 INFO L138 BoogieDeclarations]: Found implementation of procedure find_wl_entry [2024-11-09 04:32:44,340 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_chk_io [2024-11-09 04:32:44,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_chk_io [2024-11-09 04:32:44,340 INFO L130 BoogieDeclarations]: Found specification of procedure __vmalloc [2024-11-09 04:32:44,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __vmalloc [2024-11-09 04:32:44,343 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_is_bad [2024-11-09 04:32:44,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_is_bad [2024-11-09 04:32:44,343 INFO L130 BoogieDeclarations]: Found specification of procedure vol_id2idx [2024-11-09 04:32:44,343 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_id2idx [2024-11-09 04:32:44,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_mutex_of_ubi_device [2024-11-09 04:32:44,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_mutex_of_ubi_device [2024-11-09 04:32:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2024-11-09 04:32:44,344 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2024-11-09 04:32:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:32:44,344 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_update_reserved [2024-11-09 04:32:44,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_update_reserved [2024-11-09 04:32:44,345 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_put_fm_peb [2024-11-09 04:32:44,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_put_fm_peb [2024-11-09 04:32:44,345 INFO L130 BoogieDeclarations]: Found specification of procedure in_wl_tree [2024-11-09 04:32:44,345 INFO L138 BoogieDeclarations]: Found implementation of procedure in_wl_tree [2024-11-09 04:32:44,345 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_ai [2024-11-09 04:32:44,345 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_ai [2024-11-09 04:32:44,345 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2024-11-09 04:32:44,346 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2024-11-09 04:32:44,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_move_mutex_of_ubi_device [2024-11-09 04:32:44,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_move_mutex_of_ubi_device [2024-11-09 04:32:44,346 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_get_peb [2024-11-09 04:32:44,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_get_peb [2024-11-09 04:32:44,346 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-11-09 04:32:44,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-11-09 04:32:44,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:32:44,347 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_ai [2024-11-09 04:32:44,347 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_ai [2024-11-09 04:32:44,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 04:32:44,347 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_aeb [2024-11-09 04:32:44,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_aeb [2024-11-09 04:32:44,348 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_av [2024-11-09 04:32:44,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_av [2024-11-09 04:32:44,348 INFO L130 BoogieDeclarations]: Found specification of procedure write_leb [2024-11-09 04:32:44,348 INFO L138 BoogieDeclarations]: Found implementation of procedure write_leb [2024-11-09 04:32:44,348 INFO L130 BoogieDeclarations]: Found specification of procedure rb_erase [2024-11-09 04:32:44,348 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_erase [2024-11-09 04:32:44,348 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2024-11-09 04:32:44,349 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2024-11-09 04:32:44,349 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_erase [2024-11-09 04:32:44,349 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_erase [2024-11-09 04:32:44,349 INFO L130 BoogieDeclarations]: Found specification of procedure prot_queue_del [2024-11-09 04:32:44,349 INFO L138 BoogieDeclarations]: Found implementation of procedure prot_queue_del [2024-11-09 04:32:44,349 INFO L130 BoogieDeclarations]: Found specification of procedure validate_ec_hdr [2024-11-09 04:32:44,350 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_ec_hdr [2024-11-09 04:32:44,350 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_compat [2024-11-09 04:32:44,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_compat [2024-11-09 04:32:44,350 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_chk_gen [2024-11-09 04:32:44,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_chk_gen [2024-11-09 04:32:44,350 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_remove_av [2024-11-09 04:32:44,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_remove_av [2024-11-09 04:32:44,351 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2024-11-09 04:32:44,351 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2024-11-09 04:32:44,351 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_device [2024-11-09 04:32:44,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_device [2024-11-09 04:32:44,351 INFO L130 BoogieDeclarations]: Found specification of procedure rb_first [2024-11-09 04:32:44,351 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_first [2024-11-09 04:32:44,351 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_vid_hdr [2024-11-09 04:32:44,352 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_vid_hdr [2024-11-09 04:32:44,352 INFO L130 BoogieDeclarations]: Found specification of procedure device_unregister [2024-11-09 04:32:44,352 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unregister [2024-11-09 04:32:44,352 INFO L130 BoogieDeclarations]: Found specification of procedure leb_write_lock [2024-11-09 04:32:44,352 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_write_lock [2024-11-09 04:32:44,352 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-11-09 04:32:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-11-09 04:32:44,353 INFO L130 BoogieDeclarations]: Found specification of procedure rb_insert_color [2024-11-09 04:32:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_insert_color [2024-11-09 04:32:44,353 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read [2024-11-09 04:32:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read [2024-11-09 04:32:44,353 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_change_vtbl_record [2024-11-09 04:32:44,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_change_vtbl_record [2024-11-09 04:32:44,354 INFO L130 BoogieDeclarations]: Found specification of procedure uif_close [2024-11-09 04:32:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure uif_close [2024-11-09 04:32:44,354 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2024-11-09 04:32:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2024-11-09 04:32:44,354 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_atomic_leb_change [2024-11-09 04:32:44,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_atomic_leb_change [2024-11-09 04:32:44,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:32:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:32:44,355 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-09 04:32:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-09 04:32:44,355 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_ro_mode [2024-11-09 04:32:44,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_ro_mode [2024-11-09 04:32:44,356 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2024-11-09 04:32:44,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2024-11-09 04:32:44,358 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_name [2024-11-09 04:32:44,361 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_name [2024-11-09 04:32:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2024-11-09 04:32:44,362 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2024-11-09 04:32:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 04:32:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fm_mutex_of_ubi_device [2024-11-09 04:32:44,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fm_mutex_of_ubi_device [2024-11-09 04:32:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 04:32:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_buf_mutex_of_ubi_device [2024-11-09 04:32:44,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_buf_mutex_of_ubi_device [2024-11-09 04:32:44,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ubi_devices_mutex [2024-11-09 04:32:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ubi_devices_mutex [2024-11-09 04:32:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-09 04:32:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-09 04:32:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure scan_all [2024-11-09 04:32:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_all [2024-11-09 04:32:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_flash [2024-11-09 04:32:44,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_flash [2024-11-09 04:32:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_zalloc_vid_hdr [2024-11-09 04:32:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_zalloc_vid_hdr [2024-11-09 04:32:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_is_fm_block [2024-11-09 04:32:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_is_fm_block [2024-11-09 04:32:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure leb_write_unlock [2024-11-09 04:32:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_write_unlock [2024-11-09 04:32:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_mutex_of_ubi_device [2024-11-09 04:32:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_mutex_of_ubi_device [2024-11-09 04:32:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure device_register [2024-11-09 04:32:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure device_register [2024-11-09 04:32:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_sync_erase [2024-11-09 04:32:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_sync_erase [2024-11-09 04:32:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 04:32:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 04:32:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 04:32:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 04:32:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure idx2vol_id [2024-11-09 04:32:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure idx2vol_id [2024-11-09 04:32:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2024-11-09 04:32:44,365 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2024-11-09 04:32:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure free [2024-11-09 04:32:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_peb_ec_hdr [2024-11-09 04:32:44,366 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_peb_ec_hdr [2024-11-09 04:32:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vol_info [2024-11-09 04:32:44,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vol_info [2024-11-09 04:32:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 04:32:44,366 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 04:32:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure get_peb_for_wl [2024-11-09 04:32:44,366 INFO L138 BoogieDeclarations]: Found implementation of procedure get_peb_for_wl [2024-11-09 04:32:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2024-11-09 04:32:44,367 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2024-11-09 04:32:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-09 04:32:44,367 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-09 04:32:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure blocking_notifier_call_chain [2024-11-09 04:32:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure blocking_notifier_call_chain [2024-11-09 04:32:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure create_vtbl [2024-11-09 04:32:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure create_vtbl [2024-11-09 04:32:44,371 INFO L130 BoogieDeclarations]: Found specification of procedure prandom_u32 [2024-11-09 04:32:44,371 INFO L138 BoogieDeclarations]: Found implementation of procedure prandom_u32 [2024-11-09 04:32:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2024-11-09 04:32:44,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2024-11-09 04:32:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2024-11-09 04:32:44,372 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2024-11-09 04:32:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:32:44,372 INFO L130 BoogieDeclarations]: Found specification of procedure do_work [2024-11-09 04:32:44,372 INFO L138 BoogieDeclarations]: Found implementation of procedure do_work [2024-11-09 04:32:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-09 04:32:44,373 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-09 04:32:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_in_wl_tree [2024-11-09 04:32:44,373 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_in_wl_tree [2024-11-09 04:32:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_open_volume [2024-11-09 04:32:44,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_open_volume [2024-11-09 04:32:44,373 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_check_pattern [2024-11-09 04:32:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_check_pattern [2024-11-09 04:32:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_bitflip [2024-11-09 04:32:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_bitflip [2024-11-09 04:32:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_write_leb [2024-11-09 04:32:44,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_write_leb [2024-11-09 04:32:44,374 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2024-11-09 04:32:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2024-11-09 04:32:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2024-11-09 04:32:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2024-11-09 04:32:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 04:32:44,375 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_put_device [2024-11-09 04:32:44,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_put_device [2024-11-09 04:32:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure assign_aeb_to_av [2024-11-09 04:32:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure assign_aeb_to_av [2024-11-09 04:32:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2024-11-09 04:32:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2024-11-09 04:32:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure clear_update_marker [2024-11-09 04:32:44,376 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_update_marker [2024-11-09 04:32:44,376 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2024-11-09 04:32:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2024-11-09 04:32:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure scan_peb [2024-11-09 04:32:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_peb [2024-11-09 04:32:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-09 04:32:44,377 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-09 04:32:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure validate_vid_hdr___0 [2024-11-09 04:32:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_vid_hdr___0 [2024-11-09 04:32:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 04:32:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-09 04:32:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-09 04:32:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 04:32:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 04:32:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_self_check_all_ff [2024-11-09 04:32:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_self_check_all_ff [2024-11-09 04:32:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2024-11-09 04:32:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2024-11-09 04:32:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_eccerr [2024-11-09 04:32:44,379 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_eccerr [2024-11-09 04:32:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_close_volume [2024-11-09 04:32:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_close_volume [2024-11-09 04:32:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_put_peb [2024-11-09 04:32:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_put_peb [2024-11-09 04:32:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2024-11-09 04:32:44,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2024-11-09 04:32:44,380 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2024-11-09 04:32:44,381 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2024-11-09 04:32:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-09 04:32:44,381 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-09 04:32:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-11-09 04:32:44,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-11-09 04:32:44,381 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_wear_leveling [2024-11-09 04:32:44,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_wear_leveling [2024-11-09 04:32:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure leb_read_unlock [2024-11-09 04:32:44,382 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_read_unlock [2024-11-09 04:32:44,382 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_next_sqnum [2024-11-09 04:32:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_next_sqnum [2024-11-09 04:32:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ubi_devices_mutex [2024-11-09 04:32:44,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ubi_devices_mutex [2024-11-09 04:32:44,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2024-11-09 04:32:44,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2024-11-09 04:32:44,385 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_ec_hdr [2024-11-09 04:32:44,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_ec_hdr [2024-11-09 04:32:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure ltree_add_entry [2024-11-09 04:32:44,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ltree_add_entry [2024-11-09 04:32:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure volume_sysfs_close [2024-11-09 04:32:44,386 INFO L138 BoogieDeclarations]: Found implementation of procedure volume_sysfs_close [2024-11-09 04:32:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure revoke_exclusive [2024-11-09 04:32:44,386 INFO L138 BoogieDeclarations]: Found implementation of procedure revoke_exclusive [2024-11-09 04:32:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure return_unused_pool_pebs [2024-11-09 04:32:44,386 INFO L138 BoogieDeclarations]: Found implementation of procedure return_unused_pool_pebs [2024-11-09 04:32:44,386 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-11-09 04:32:44,386 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-11-09 04:32:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vtbl_record [2024-11-09 04:32:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vtbl_record [2024-11-09 04:32:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure erase_worker [2024-11-09 04:32:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure erase_worker [2024-11-09 04:32:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure do_sync_erase [2024-11-09 04:32:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sync_erase [2024-11-09 04:32:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_add_to_av [2024-11-09 04:32:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_add_to_av [2024-11-09 04:32:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2024-11-09 04:32:44,387 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2024-11-09 04:32:44,387 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2024-11-09 04:32:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2024-11-09 04:32:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 04:32:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 04:32:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2024-11-09 04:32:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2024-11-09 04:32:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:32:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2024-11-09 04:32:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2024-11-09 04:32:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-11-09 04:32:44,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-11-09 04:32:44,388 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_remove_volume [2024-11-09 04:32:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_remove_volume [2024-11-09 04:32:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 04:32:44,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 04:32:44,389 INFO L130 BoogieDeclarations]: Found specification of procedure ltree_lookup [2024-11-09 04:32:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ltree_lookup [2024-11-09 04:32:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2024-11-09 04:32:44,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2024-11-09 04:32:44,393 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2024-11-09 04:32:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2024-11-09 04:32:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-09 04:32:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-09 04:32:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_flush [2024-11-09 04:32:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_flush [2024-11-09 04:32:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_list [2024-11-09 04:32:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_list [2024-11-09 04:32:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_volumes [2024-11-09 04:32:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_volumes [2024-11-09 04:32:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure kill_volumes [2024-11-09 04:32:44,394 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_volumes [2024-11-09 04:32:44,394 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_is_bgt_disabled [2024-11-09 04:32:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_is_bgt_disabled [2024-11-09 04:32:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_notify_all [2024-11-09 04:32:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_notify_all [2024-11-09 04:32:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2024-11-09 04:32:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2024-11-09 04:32:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write [2024-11-09 04:32:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write [2024-11-09 04:32:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure imajor [2024-11-09 04:32:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure imajor [2024-11-09 04:32:44,395 INFO L130 BoogieDeclarations]: Found specification of procedure scan_pool [2024-11-09 04:32:44,395 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_pool [2024-11-09 04:32:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-09 04:32:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-09 04:32:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure add_aeb [2024-11-09 04:32:44,396 INFO L138 BoogieDeclarations]: Found implementation of procedure add_aeb [2024-11-09 04:32:44,396 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read [2024-11-09 04:32:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read [2024-11-09 04:32:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure get_exclusive [2024-11-09 04:32:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure get_exclusive [2024-11-09 04:32:44,398 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_major2num [2024-11-09 04:32:44,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_major2num [2024-11-09 04:32:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_do_get_volume_info [2024-11-09 04:32:44,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_do_get_volume_info [2024-11-09 04:32:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_fm_mutex_of_ubi_device [2024-11-09 04:32:44,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_fm_mutex_of_ubi_device [2024-11-09 04:32:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2024-11-09 04:32:44,399 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2024-11-09 04:32:44,399 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 04:32:44,399 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 04:32:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure tree_destroy [2024-11-09 04:32:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_destroy [2024-11-09 04:32:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:32:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_ec_hdr [2024-11-09 04:32:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_ec_hdr [2024-11-09 04:32:44,400 INFO L130 BoogieDeclarations]: Found specification of procedure find_anchor_wl_entry [2024-11-09 04:32:44,400 INFO L138 BoogieDeclarations]: Found implementation of procedure find_anchor_wl_entry [2024-11-09 04:32:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 04:32:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 04:32:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-11-09 04:32:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-11-09 04:32:44,401 INFO L130 BoogieDeclarations]: Found specification of procedure wl_tree_add [2024-11-09 04:32:44,401 INFO L138 BoogieDeclarations]: Found implementation of procedure wl_tree_add [2024-11-09 04:32:47,054 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:32:47,059 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:34:35,099 INFO L? ?]: Removed 7297 outVars from TransFormulas that were not future-live. [2024-11-09 04:34:35,099 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:34:42,236 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:34:42,236 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 04:34:42,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:34:42 BoogieIcfgContainer [2024-11-09 04:34:42,237 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:34:42,239 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:34:42,239 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:34:42,242 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:34:42,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:32:31" (1/3) ... [2024-11-09 04:34:42,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e5d2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:34:42, skipping insertion in model container [2024-11-09 04:34:42,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:32:40" (2/3) ... [2024-11-09 04:34:42,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e5d2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:34:42, skipping insertion in model container [2024-11-09 04:34:42,244 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:34:42" (3/3) ... [2024-11-09 04:34:42,245 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i [2024-11-09 04:34:42,260 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:34:42,261 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:34:42,498 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:34:42,504 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;@139a912, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:34:42,504 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:34:42,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 8358 states, 4978 states have (on average 1.3089594214543994) internal successors, (6516), 5230 states have internal predecessors, (6516), 3149 states have call successors, (3149), 229 states have call predecessors, (3149), 229 states have return successors, (3149), 3099 states have call predecessors, (3149), 3149 states have call successors, (3149) [2024-11-09 04:34:42,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 04:34:42,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:34:42,540 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:34:42,541 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:34:42,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:34:42,546 INFO L85 PathProgramCache]: Analyzing trace with hash 292948568, now seen corresponding path program 1 times [2024-11-09 04:34:42,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:34:42,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544222898] [2024-11-09 04:34:42,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:34:42,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:35:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:35:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:35:07,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:35:07,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544222898] [2024-11-09 04:35:07,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544222898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:35:07,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:35:07,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:35:07,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603256680] [2024-11-09 04:35:07,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:35:07,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:35:07,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:35:07,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:35:07,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:35:07,502 INFO L87 Difference]: Start difference. First operand has 8358 states, 4978 states have (on average 1.3089594214543994) internal successors, (6516), 5230 states have internal predecessors, (6516), 3149 states have call successors, (3149), 229 states have call predecessors, (3149), 229 states have return successors, (3149), 3099 states have call predecessors, (3149), 3149 states have call successors, (3149) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:35:09,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:35:12,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:35:15,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:35:22,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:35:29,315 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 [] [2024-11-09 04:35:29,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:35:29,817 INFO L93 Difference]: Finished difference Result 19752 states and 30360 transitions. [2024-11-09 04:35:29,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:35:29,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-11-09 04:35:29,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:35:29,938 INFO L225 Difference]: With dead ends: 19752 [2024-11-09 04:35:29,938 INFO L226 Difference]: Without dead ends: 11390 [2024-11-09 04:35:30,021 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 [2024-11-09 04:35:30,025 INFO L432 NwaCegarLoop]: 12553 mSDtfsCounter, 12664 mSDsluCounter, 4500 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12664 SdHoareTripleChecker+Valid, 17053 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:35:30,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12664 Valid, 17053 Invalid, 722 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 717 Invalid, 3 Unknown, 0 Unchecked, 21.4s Time] [2024-11-09 04:35:30,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11390 states. [2024-11-09 04:35:31,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11390 to 11382. [2024-11-09 04:35:31,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11382 states, 6735 states have (on average 1.2981440237564958) internal successors, (8743), 7091 states have internal predecessors, (8743), 4298 states have call successors, (4298), 350 states have call predecessors, (4298), 348 states have return successors, (4273), 4198 states have call predecessors, (4273), 4273 states have call successors, (4273) [2024-11-09 04:35:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11382 states to 11382 states and 17314 transitions. [2024-11-09 04:35:31,606 INFO L78 Accepts]: Start accepts. Automaton has 11382 states and 17314 transitions. Word has length 10 [2024-11-09 04:35:31,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:35:31,607 INFO L471 AbstractCegarLoop]: Abstraction has 11382 states and 17314 transitions. [2024-11-09 04:35:31,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:35:31,609 INFO L276 IsEmpty]: Start isEmpty. Operand 11382 states and 17314 transitions. [2024-11-09 04:35:31,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 04:35:31,609 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:35:31,609 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:35:31,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:35:31,610 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:35:31,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:35:31,612 INFO L85 PathProgramCache]: Analyzing trace with hash 485237562, now seen corresponding path program 1 times [2024-11-09 04:35:31,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:35:31,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967804302] [2024-11-09 04:35:31,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:35:31,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:35:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:35:55,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:35:55,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:35:55,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967804302] [2024-11-09 04:35:55,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967804302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:35:55,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:35:55,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:35:55,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368244798] [2024-11-09 04:35:55,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:35:55,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:35:55,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:35:55,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:35:55,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:35:55,171 INFO L87 Difference]: Start difference. First operand 11382 states and 17314 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:35:57,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:35:59,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:36:11,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:36:11,142 INFO L93 Difference]: Finished difference Result 13327 states and 20141 transitions. [2024-11-09 04:36:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:36:11,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-09 04:36:11,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:36:11,257 INFO L225 Difference]: With dead ends: 13327 [2024-11-09 04:36:11,257 INFO L226 Difference]: Without dead ends: 13323 [2024-11-09 04:36:11,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:36:11,271 INFO L432 NwaCegarLoop]: 12293 mSDtfsCounter, 12436 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12436 SdHoareTripleChecker+Valid, 13990 SdHoareTripleChecker+Invalid, 620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:36:11,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12436 Valid, 13990 Invalid, 620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 616 Invalid, 2 Unknown, 0 Unchecked, 15.4s Time] [2024-11-09 04:36:11,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13323 states. [2024-11-09 04:36:12,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13323 to 13321. [2024-11-09 04:36:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13321 states, 7858 states have (on average 1.291295495036905) internal successors, (10147), 8278 states have internal predecessors, (10147), 5005 states have call successors, (5005), 459 states have call predecessors, (5005), 457 states have return successors, (4982), 4885 states have call predecessors, (4982), 4982 states have call successors, (4982) [2024-11-09 04:36:12,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13321 states to 13321 states and 20134 transitions. [2024-11-09 04:36:12,783 INFO L78 Accepts]: Start accepts. Automaton has 13321 states and 20134 transitions. Word has length 11 [2024-11-09 04:36:12,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:36:12,784 INFO L471 AbstractCegarLoop]: Abstraction has 13321 states and 20134 transitions. [2024-11-09 04:36:12,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:36:12,784 INFO L276 IsEmpty]: Start isEmpty. Operand 13321 states and 20134 transitions. [2024-11-09 04:36:12,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 04:36:12,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:36:12,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:36:12,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:36:12,786 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:36:12,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:36:12,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2143733349, now seen corresponding path program 1 times [2024-11-09 04:36:12,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:36:12,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294802806] [2024-11-09 04:36:12,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:36:12,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:36:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:36:35,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:36:35,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:36:35,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294802806] [2024-11-09 04:36:35,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294802806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:36:35,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:36:35,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:36:35,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202245689] [2024-11-09 04:36:35,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:36:35,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:36:35,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:36:35,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:36:35,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:36:35,592 INFO L87 Difference]: Start difference. First operand 13321 states and 20134 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:36:37,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:36:40,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:36:43,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:36:49,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:36:53,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:36:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:36:54,021 INFO L93 Difference]: Finished difference Result 14208 states and 21399 transitions. [2024-11-09 04:36:54,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:36:54,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-09 04:36:54,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:36:54,118 INFO L225 Difference]: With dead ends: 14208 [2024-11-09 04:36:54,119 INFO L226 Difference]: Without dead ends: 14204 [2024-11-09 04:36:54,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:36:54,135 INFO L432 NwaCegarLoop]: 12285 mSDtfsCounter, 12730 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12730 SdHoareTripleChecker+Valid, 13510 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:36:54,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12730 Valid, 13510 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 612 Invalid, 3 Unknown, 0 Unchecked, 17.9s Time] [2024-11-09 04:36:54,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14204 states. [2024-11-09 04:36:55,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14204 to 14202. [2024-11-09 04:36:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14202 states, 8373 states have (on average 1.290099128150006) internal successors, (10802), 8824 states have internal predecessors, (10802), 5306 states have call successors, (5306), 524 states have call predecessors, (5306), 522 states have return successors, (5285), 5183 states have call predecessors, (5285), 5285 states have call successors, (5285) [2024-11-09 04:36:55,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14202 states to 14202 states and 21393 transitions. [2024-11-09 04:36:55,732 INFO L78 Accepts]: Start accepts. Automaton has 14202 states and 21393 transitions. Word has length 12 [2024-11-09 04:36:55,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:36:55,732 INFO L471 AbstractCegarLoop]: Abstraction has 14202 states and 21393 transitions. [2024-11-09 04:36:55,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:36:55,733 INFO L276 IsEmpty]: Start isEmpty. Operand 14202 states and 21393 transitions. [2024-11-09 04:36:55,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 04:36:55,733 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:36:55,733 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:36:55,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:36:55,734 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:36:55,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:36:55,735 INFO L85 PathProgramCache]: Analyzing trace with hash -2037448099, now seen corresponding path program 1 times [2024-11-09 04:36:55,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:36:55,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385913627] [2024-11-09 04:36:55,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:36:55,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:37:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:37:17,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:37:17,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:37:17,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385913627] [2024-11-09 04:37:17,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385913627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:37:17,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:37:17,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:37:17,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875522009] [2024-11-09 04:37:17,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:37:17,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:37:17,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:37:17,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:37:17,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:37:17,340 INFO L87 Difference]: Start difference. First operand 14202 states and 21393 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:37:19,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:37:21,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:37:24,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:37:29,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:37:33,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:37:37,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:37:37,678 INFO L93 Difference]: Finished difference Result 18903 states and 28386 transitions. [2024-11-09 04:37:37,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:37:37,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-11-09 04:37:37,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:37:37,790 INFO L225 Difference]: With dead ends: 18903 [2024-11-09 04:37:37,790 INFO L226 Difference]: Without dead ends: 18899 [2024-11-09 04:37:37,809 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 [2024-11-09 04:37:37,810 INFO L432 NwaCegarLoop]: 12906 mSDtfsCounter, 12315 mSDsluCounter, 5816 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12315 SdHoareTripleChecker+Valid, 18722 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:37:37,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12315 Valid, 18722 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 795 Invalid, 2 Unknown, 0 Unchecked, 19.6s Time] [2024-11-09 04:37:37,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18899 states. [2024-11-09 04:37:39,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18899 to 18892. [2024-11-09 04:37:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18892 states, 11097 states have (on average 1.2850319906280976) internal successors, (14260), 11696 states have internal predecessors, (14260), 7067 states have call successors, (7067), 729 states have call predecessors, (7067), 727 states have return successors, (7048), 6909 states have call predecessors, (7048), 7048 states have call successors, (7048) [2024-11-09 04:37:39,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18892 states to 18892 states and 28375 transitions. [2024-11-09 04:37:39,753 INFO L78 Accepts]: Start accepts. Automaton has 18892 states and 28375 transitions. Word has length 13 [2024-11-09 04:37:39,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:37:39,753 INFO L471 AbstractCegarLoop]: Abstraction has 18892 states and 28375 transitions. [2024-11-09 04:37:39,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:37:39,754 INFO L276 IsEmpty]: Start isEmpty. Operand 18892 states and 28375 transitions. [2024-11-09 04:37:39,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 04:37:39,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:37:39,755 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:37:39,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:37:39,756 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:37:39,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:37:39,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1257399518, now seen corresponding path program 1 times [2024-11-09 04:37:39,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:37:39,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156734101] [2024-11-09 04:37:39,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:37:39,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:02,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:02,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:02,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156734101] [2024-11-09 04:38:02,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156734101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:02,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:02,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:38:02,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128303130] [2024-11-09 04:38:02,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:02,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:38:02,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:02,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:38:02,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:02,257 INFO L87 Difference]: Start difference. First operand 18892 states and 28375 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:38:04,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:38:06,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:38:09,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:38:20,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:20,940 INFO L93 Difference]: Finished difference Result 26423 states and 39429 transitions. [2024-11-09 04:38:20,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:38:20,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-11-09 04:38:20,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:21,071 INFO L225 Difference]: With dead ends: 26423 [2024-11-09 04:38:21,071 INFO L226 Difference]: Without dead ends: 26419 [2024-11-09 04:38:21,086 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 [2024-11-09 04:38:21,087 INFO L432 NwaCegarLoop]: 12645 mSDtfsCounter, 10898 mSDsluCounter, 5145 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10898 SdHoareTripleChecker+Valid, 17790 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:21,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10898 Valid, 17790 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 776 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time] [2024-11-09 04:38:21,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26419 states. [2024-11-09 04:38:23,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26419 to 26414. [2024-11-09 04:38:23,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26414 states, 15454 states have (on average 1.278698071696648) internal successors, (19761), 16310 states have internal predecessors, (19761), 9837 states have call successors, (9837), 1124 states have call predecessors, (9837), 1122 states have return successors, (9820), 9602 states have call predecessors, (9820), 9820 states have call successors, (9820) [2024-11-09 04:38:23,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26414 states to 26414 states and 39418 transitions. [2024-11-09 04:38:23,691 INFO L78 Accepts]: Start accepts. Automaton has 26414 states and 39418 transitions. Word has length 14 [2024-11-09 04:38:23,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:38:23,691 INFO L471 AbstractCegarLoop]: Abstraction has 26414 states and 39418 transitions. [2024-11-09 04:38:23,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:38:23,692 INFO L276 IsEmpty]: Start isEmpty. Operand 26414 states and 39418 transitions. [2024-11-09 04:38:23,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 04:38:23,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:23,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:38:23,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:38:23,694 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:38:23,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:23,696 INFO L85 PathProgramCache]: Analyzing trace with hash 318465408, now seen corresponding path program 1 times [2024-11-09 04:38:23,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:23,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944199893] [2024-11-09 04:38:23,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:23,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:45,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:46,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:38:46,618 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:46,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944199893] [2024-11-09 04:38:46,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944199893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:46,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:46,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:38:46,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420313123] [2024-11-09 04:38:46,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:46,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:38:46,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:46,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:38:46,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:46,621 INFO L87 Difference]: Start difference. First operand 26414 states and 39418 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:38:48,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:38:51,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:38:54,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:39:04,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:04,317 INFO L93 Difference]: Finished difference Result 30288 states and 45141 transitions. [2024-11-09 04:39:04,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:39:04,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-11-09 04:39:04,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:04,478 INFO L225 Difference]: With dead ends: 30288 [2024-11-09 04:39:04,478 INFO L226 Difference]: Without dead ends: 30284 [2024-11-09 04:39:04,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:39:04,495 INFO L432 NwaCegarLoop]: 13677 mSDtfsCounter, 12699 mSDsluCounter, 4219 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12699 SdHoareTripleChecker+Valid, 17896 SdHoareTripleChecker+Invalid, 778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:04,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12699 Valid, 17896 Invalid, 778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 774 Invalid, 2 Unknown, 0 Unchecked, 16.4s Time] [2024-11-09 04:39:04,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30284 states. [2024-11-09 04:39:06,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30284 to 30278. [2024-11-09 04:39:06,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30278 states, 17695 states have (on average 1.2766318168974287) internal successors, (22590), 18681 states have internal predecessors, (22590), 11278 states have call successors, (11278), 1306 states have call predecessors, (11278), 1304 states have return successors, (11263), 11010 states have call predecessors, (11263), 11263 states have call successors, (11263) [2024-11-09 04:39:06,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30278 states to 30278 states and 45131 transitions. [2024-11-09 04:39:06,790 INFO L78 Accepts]: Start accepts. Automaton has 30278 states and 45131 transitions. Word has length 15 [2024-11-09 04:39:06,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:06,790 INFO L471 AbstractCegarLoop]: Abstraction has 30278 states and 45131 transitions. [2024-11-09 04:39:06,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:39:06,790 INFO L276 IsEmpty]: Start isEmpty. Operand 30278 states and 45131 transitions. [2024-11-09 04:39:06,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 04:39:06,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:06,794 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:06,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 04:39:06,794 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:06,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:06,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1276283937, now seen corresponding path program 1 times [2024-11-09 04:39:06,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:06,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202337824] [2024-11-09 04:39:06,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:06,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:29,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:39:29,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:29,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202337824] [2024-11-09 04:39:29,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202337824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:29,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:29,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:39:29,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370761476] [2024-11-09 04:39:29,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:29,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:39:29,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:29,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:39:29,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:39:29,866 INFO L87 Difference]: Start difference. First operand 30278 states and 45131 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:39:32,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:39:34,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:39:44,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:44,823 INFO L93 Difference]: Finished difference Result 30280 states and 45132 transitions. [2024-11-09 04:39:44,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:39:44,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-09 04:39:44,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:44,994 INFO L225 Difference]: With dead ends: 30280 [2024-11-09 04:39:44,994 INFO L226 Difference]: Without dead ends: 30277 [2024-11-09 04:39:45,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:39:45,023 INFO L432 NwaCegarLoop]: 12203 mSDtfsCounter, 12737 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12737 SdHoareTripleChecker+Valid, 12204 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:45,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12737 Valid, 12204 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 546 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2024-11-09 04:39:45,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30277 states. [2024-11-09 04:39:47,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30277 to 30277. [2024-11-09 04:39:47,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30277 states, 17695 states have (on average 1.2765753037581238) internal successors, (22589), 18680 states have internal predecessors, (22589), 11277 states have call successors, (11277), 1306 states have call predecessors, (11277), 1304 states have return successors, (11263), 11010 states have call predecessors, (11263), 11263 states have call successors, (11263) [2024-11-09 04:39:47,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30277 states to 30277 states and 45129 transitions. [2024-11-09 04:39:47,361 INFO L78 Accepts]: Start accepts. Automaton has 30277 states and 45129 transitions. Word has length 16 [2024-11-09 04:39:47,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:47,361 INFO L471 AbstractCegarLoop]: Abstraction has 30277 states and 45129 transitions. [2024-11-09 04:39:47,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:39:47,362 INFO L276 IsEmpty]: Start isEmpty. Operand 30277 states and 45129 transitions. [2024-11-09 04:39:47,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 04:39:47,363 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:47,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:47,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 04:39:47,364 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:39:47,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:47,364 INFO L85 PathProgramCache]: Analyzing trace with hash 903892131, now seen corresponding path program 1 times [2024-11-09 04:39:47,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:47,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240381518] [2024-11-09 04:39:47,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:47,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:10,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:40:10,194 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:10,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240381518] [2024-11-09 04:40:10,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240381518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:10,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:10,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:40:10,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970868670] [2024-11-09 04:40:10,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:10,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:40:10,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:10,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:40:10,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:40:10,196 INFO L87 Difference]: Start difference. First operand 30277 states and 45129 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:40:12,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:40:14,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:40:27,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:40:27,659 INFO L93 Difference]: Finished difference Result 44771 states and 66363 transitions. [2024-11-09 04:40:27,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:40:27,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-11-09 04:40:27,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:40:27,890 INFO L225 Difference]: With dead ends: 44771 [2024-11-09 04:40:27,891 INFO L226 Difference]: Without dead ends: 44767 [2024-11-09 04:40:27,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:40:27,922 INFO L432 NwaCegarLoop]: 12288 mSDtfsCounter, 12028 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12028 SdHoareTripleChecker+Valid, 15462 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2024-11-09 04:40:27,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12028 Valid, 15462 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 663 Invalid, 2 Unknown, 0 Unchecked, 15.5s Time] [2024-11-09 04:40:27,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44767 states. [2024-11-09 04:40:31,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44767 to 44764. [2024-11-09 04:40:31,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44764 states, 26119 states have (on average 1.2720241969447528) internal successors, (33224), 27587 states have internal predecessors, (33224), 16569 states have call successors, (16569), 2077 states have call predecessors, (16569), 2075 states have return successors, (16557), 16152 states have call predecessors, (16557), 16557 states have call successors, (16557) [2024-11-09 04:40:31,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44764 states to 44764 states and 66350 transitions. [2024-11-09 04:40:31,301 INFO L78 Accepts]: Start accepts. Automaton has 44764 states and 66350 transitions. Word has length 17 [2024-11-09 04:40:31,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:40:31,302 INFO L471 AbstractCegarLoop]: Abstraction has 44764 states and 66350 transitions. [2024-11-09 04:40:31,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:40:31,302 INFO L276 IsEmpty]: Start isEmpty. Operand 44764 states and 66350 transitions. [2024-11-09 04:40:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 04:40:31,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:40:31,303 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:40:31,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 04:40:31,303 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:40:31,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:40:31,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2050314396, now seen corresponding path program 1 times [2024-11-09 04:40:31,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:40:31,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405076461] [2024-11-09 04:40:31,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:40:31,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:40:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:40:53,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:40:53,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:40:53,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405076461] [2024-11-09 04:40:53,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405076461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:40:53,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:40:53,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:40:53,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128874187] [2024-11-09 04:40:53,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:40:53,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:40:53,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:40:53,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:40:53,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:40:53,793 INFO L87 Difference]: Start difference. First operand 44764 states and 66350 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:40:56,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:40:58,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:41:09,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:41:10,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:41:10,354 INFO L93 Difference]: Finished difference Result 44766 states and 66351 transitions. [2024-11-09 04:41:10,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:41:10,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-11-09 04:41:10,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:41:10,560 INFO L225 Difference]: With dead ends: 44766 [2024-11-09 04:41:10,560 INFO L226 Difference]: Without dead ends: 44763 [2024-11-09 04:41:10,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:41:10,596 INFO L432 NwaCegarLoop]: 12197 mSDtfsCounter, 12729 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12729 SdHoareTripleChecker+Valid, 12198 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:41:10,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12729 Valid, 12198 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 546 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2024-11-09 04:41:10,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44763 states. [2024-11-09 04:41:13,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44763 to 44763. [2024-11-09 04:41:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44763 states, 26119 states have (on average 1.2719859106397642) internal successors, (33223), 27586 states have internal predecessors, (33223), 16568 states have call successors, (16568), 2077 states have call predecessors, (16568), 2075 states have return successors, (16557), 16152 states have call predecessors, (16557), 16557 states have call successors, (16557) [2024-11-09 04:41:13,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44763 states to 44763 states and 66348 transitions. [2024-11-09 04:41:13,990 INFO L78 Accepts]: Start accepts. Automaton has 44763 states and 66348 transitions. Word has length 18 [2024-11-09 04:41:13,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:41:13,990 INFO L471 AbstractCegarLoop]: Abstraction has 44763 states and 66348 transitions. [2024-11-09 04:41:13,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:41:13,991 INFO L276 IsEmpty]: Start isEmpty. Operand 44763 states and 66348 transitions. [2024-11-09 04:41:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 04:41:13,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:41:13,992 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:41:13,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 04:41:13,992 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:41:13,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:41:13,992 INFO L85 PathProgramCache]: Analyzing trace with hash 858568646, now seen corresponding path program 1 times [2024-11-09 04:41:13,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:41:13,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790084963] [2024-11-09 04:41:13,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:41:13,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:41:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:41:35,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:41:35,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:41:35,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790084963] [2024-11-09 04:41:35,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790084963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:41:35,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:41:35,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 04:41:35,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193220518] [2024-11-09 04:41:35,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:41:35,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:41:35,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:41:35,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:41:35,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:41:35,521 INFO L87 Difference]: Start difference. First operand 44763 states and 66348 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:41:37,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:41:40,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:41:43,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:41:53,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:41:55,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:42:02,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:42:04,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:42:04,064 INFO L93 Difference]: Finished difference Result 57093 states and 84518 transitions. [2024-11-09 04:42:04,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:42:04,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2024-11-09 04:42:04,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:42:04,278 INFO L225 Difference]: With dead ends: 57093 [2024-11-09 04:42:04,278 INFO L226 Difference]: Without dead ends: 57078 [2024-11-09 04:42:04,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:42:04,314 INFO L432 NwaCegarLoop]: 12213 mSDtfsCounter, 8434 mSDsluCounter, 9435 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8434 SdHoareTripleChecker+Valid, 21648 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:42:04,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8434 Valid, 21648 Invalid, 977 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 972 Invalid, 3 Unknown, 0 Unchecked, 26.0s Time] [2024-11-09 04:42:04,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57078 states. [2024-11-09 04:42:08,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57078 to 57072. [2024-11-09 04:42:08,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57072 states, 33253 states have (on average 1.2702011848555017) internal successors, (42238), 35138 states have internal predecessors, (42238), 21132 states have call successors, (21132), 2687 states have call predecessors, (21132), 2686 states have return successors, (21124), 20597 states have call predecessors, (21124), 21124 states have call successors, (21124) [2024-11-09 04:42:09,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57072 states to 57072 states and 84494 transitions. [2024-11-09 04:42:09,097 INFO L78 Accepts]: Start accepts. Automaton has 57072 states and 84494 transitions. Word has length 19 [2024-11-09 04:42:09,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:42:09,097 INFO L471 AbstractCegarLoop]: Abstraction has 57072 states and 84494 transitions. [2024-11-09 04:42:09,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 04:42:09,097 INFO L276 IsEmpty]: Start isEmpty. Operand 57072 states and 84494 transitions. [2024-11-09 04:42:09,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 04:42:09,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:42:09,101 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:42:09,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 04:42:09,102 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:42:09,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:42:09,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1595376036, now seen corresponding path program 1 times [2024-11-09 04:42:09,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:42:09,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464581652] [2024-11-09 04:42:09,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:42:09,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms