./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/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_7c0a16d6-ff15-4055-a029-68a0b93a1a74/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/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_7c0a16d6-ff15-4055-a029-68a0b93a1a74/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 47dd253b5f3df7f1cb7a76abc50644bd8a8e5826cdc82454c7f23fb12c64e63b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:35:27,768 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:35:27,853 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 06:35:27,860 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:35:27,861 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:35:27,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:35:27,902 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:35:27,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:35:27,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:35:27,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:35:27,905 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:35:27,905 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:35:27,906 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:35:27,907 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:35:27,909 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:35:27,909 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:35:27,910 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:35:27,910 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:35:27,910 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:35:27,911 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:35:27,911 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:35:27,915 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:35:27,916 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:35:27,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:35:27,916 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:35:27,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:35:27,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:35:27,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:35:27,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:35:27,918 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:35:27,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:35:27,918 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:35:27,919 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:35:27,919 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:35:27,919 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:35:27,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:35:27,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:35:27,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:35:27,920 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:35:27,921 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:35:27,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:35:27,923 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:35:27,924 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:35:27,924 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:35:27,924 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_7c0a16d6-ff15-4055-a029-68a0b93a1a74/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47dd253b5f3df7f1cb7a76abc50644bd8a8e5826cdc82454c7f23fb12c64e63b [2024-11-09 06:35:28,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:35:28,248 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:35:28,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:35:28,252 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:35:28,252 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:35:28,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i Unable to find full path for "g++" [2024-11-09 06:35:30,183 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:35:30,930 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:35:30,930 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2024-11-09 06:35:31,004 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/bin/utaipan-verify-YMUCfTKeje/data/59b35446f/85b318ca07f44362b34090128638bc8a/FLAG76c0bf508 [2024-11-09 06:35:31,022 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/bin/utaipan-verify-YMUCfTKeje/data/59b35446f/85b318ca07f44362b34090128638bc8a [2024-11-09 06:35:31,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:35:31,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:35:31,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:35:31,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:35:31,036 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:35:31,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:35:31" (1/1) ... [2024-11-09 06:35:31,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@799035a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:31, skipping insertion in model container [2024-11-09 06:35:31,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:35:31" (1/1) ... [2024-11-09 06:35:31,220 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:35:34,213 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_7c0a16d6-ff15-4055-a029-68a0b93a1a74/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2024-11-09 06:35:34,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:35:34,415 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:35:34,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5195] [2024-11-09 06:35:34,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5202] [2024-11-09 06:35:34,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5209-5210] [2024-11-09 06:35:34,538 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)); [5223-5224] [2024-11-09 06:35:34,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5253] [2024-11-09 06:35:34,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5256] [2024-11-09 06:35:34,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5259] [2024-11-09 06:35:34,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5262] [2024-11-09 06:35:34,541 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/zakharov_benchmarks/bench/cpa/inst/current/envs/linux-3.8-rc1/linux-3.8-rc1/arch/x86/include/asm/paravirt.h"), "i" (825), "i" (12UL)); [5294-5295] [2024-11-09 06:35:34,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5300-5302] [2024-11-09 06:35:34,545 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5430] [2024-11-09 06:35:34,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5437] [2024-11-09 06:35:34,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5444] [2024-11-09 06:35:34,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5451] [2024-11-09 06:35:34,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___10->state): : "memory", "cc"); [7940-7941] [2024-11-09 06:35:34,742 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___11->state): : "memory", "cc"); [7945-7946] [2024-11-09 06:35:34,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___12->state): : "memory", "cc"); [7950-7951] [2024-11-09 06:35:34,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___13->state): : "memory", "cc"); [7955-7956] [2024-11-09 06:35:34,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___17->state): : "memory", "cc"); [7981-7982] [2024-11-09 06:35:34,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___18->state): : "memory", "cc"); [7986-7987] [2024-11-09 06:35:34,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___19->state): : "memory", "cc"); [7991-7992] [2024-11-09 06:35:34,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___20->state): : "memory", "cc"); [7996-7997] [2024-11-09 06:35:34,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___1), "+m" (tmp___30->state): : "memory", "cc"); [8068-8069] [2024-11-09 06:35:34,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___1), "+m" (tmp___31->state): : "memory", "cc"); [8073-8074] [2024-11-09 06:35:34,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___1), "+m" (tmp___32->state): : "memory", "cc"); [8078-8079] [2024-11-09 06:35:34,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___1), "+m" (tmp___33->state): : "memory", "cc"); [8083-8084] [2024-11-09 06:35:34,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [8108] [2024-11-09 06:35:34,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [8111] [2024-11-09 06:35:34,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [8114] [2024-11-09 06:35:34,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [8117] [2024-11-09 06:35:34,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (mask_ptr): "ebx"); [8120] [2024-11-09 06:35:34,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [8171-8172] [2024-11-09 06:35:34,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [8176-8177] [2024-11-09 06:35:34,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [8181-8182] [2024-11-09 06:35:34,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [8186-8187] [2024-11-09 06:35:34,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___8->state): : "memory", "cc"); [8210-8211] [2024-11-09 06:35:34,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___9->state): : "memory", "cc"); [8215-8216] [2024-11-09 06:35:34,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___10->state): : "memory", "cc"); [8220-8221] [2024-11-09 06:35:34,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___11->state): : "memory", "cc"); [8225-8226] [2024-11-09 06:35:34,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___1), "+m" (tmp___12->state): : "memory", "cc"); [8251-8252] [2024-11-09 06:35:34,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___1), "+m" (tmp___13->state): : "memory", "cc"); [8256-8257] [2024-11-09 06:35:34,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___1), "+m" (tmp___14->state): : "memory", "cc"); [8261-8262] [2024-11-09 06:35:34,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___1), "+m" (tmp___15->state): : "memory", "cc"); [8266-8267] [2024-11-09 06:35:34,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [8837-8838] [2024-11-09 06:35:34,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [8842-8843] [2024-11-09 06:35:34,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [8847-8848] [2024-11-09 06:35:34,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [8852-8853] [2024-11-09 06:35:34,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___9->state): : "memory", "cc"); [8895-8896] [2024-11-09 06:35:34,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___10->state): : "memory", "cc"); [8900-8901] [2024-11-09 06:35:34,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___11->state): : "memory", "cc"); [8905-8906] [2024-11-09 06:35:34,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___12->state): : "memory", "cc"); [8910-8911] [2024-11-09 06:35:35,102 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_7c0a16d6-ff15-4055-a029-68a0b93a1a74/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2024-11-09 06:35:35,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:35:35,361 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:35:35,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35 WrapperNode [2024-11-09 06:35:35,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:35:35,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:35:35,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:35:35,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:35:35,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (1/1) ... [2024-11-09 06:35:35,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (1/1) ... [2024-11-09 06:35:35,848 INFO L138 Inliner]: procedures = 395, calls = 4272, calls flagged for inlining = 201, calls inlined = 148, statements flattened = 8820 [2024-11-09 06:35:35,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:35:35,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:35:35,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:35:35,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:35:35,867 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (1/1) ... [2024-11-09 06:35:35,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (1/1) ... [2024-11-09 06:35:35,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (1/1) ... [2024-11-09 06:35:35,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (1/1) ... [2024-11-09 06:35:36,221 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (1/1) ... [2024-11-09 06:35:36,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (1/1) ... [2024-11-09 06:35:36,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (1/1) ... [2024-11-09 06:35:36,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (1/1) ... [2024-11-09 06:35:36,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:35:36,519 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:35:36,519 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:35:36,524 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:35:36,525 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (1/1) ... [2024-11-09 06:35:36,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:35:36,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:35:36,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:35:36,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0a16d6-ff15-4055-a029-68a0b93a1a74/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:35:36,656 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_wait_until_sent [2024-11-09 06:35:36,659 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_wait_until_sent [2024-11-09 06:35:36,659 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2024-11-09 06:35:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __xchg_wrong_size [2024-11-09 06:35:36,660 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 06:35:36,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 06:35:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_start [2024-11-09 06:35:36,664 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_start [2024-11-09 06:35:36,664 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_txidle [2024-11-09 06:35:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_txidle [2024-11-09 06:35:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2024-11-09 06:35:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2024-11-09 06:35:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 06:35:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 06:35:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopback_frame [2024-11-09 06:35:36,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopback_frame [2024-11-09 06:35:36,665 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2024-11-09 06:35:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2024-11-09 06:35:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_receiver [2024-11-09 06:35:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_receiver [2024-11-09 06:35:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_serial_signals [2024-11-09 06:35:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_serial_signals [2024-11-09 06:35:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_trace_block [2024-11-09 06:35:36,666 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_trace_block [2024-11-09 06:35:36,666 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2024-11-09 06:35:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2024-11-09 06:35:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-09 06:35:36,667 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-09 06:35:36,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mgsl_ops_disconnect_2 [2024-11-09 06:35:36,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mgsl_ops_disconnect_2 [2024-11-09 06:35:36,669 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2024-11-09 06:35:36,669 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2024-11-09 06:35:36,672 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-09 06:35:36,672 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-09 06:35:36,672 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2024-11-09 06:35:36,673 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2024-11-09 06:35:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure load_next_tx_holding_buffer [2024-11-09 06:35:36,673 INFO L138 BoogieDeclarations]: Found implementation of procedure load_next_tx_holding_buffer [2024-11-09 06:35:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 06:35:36,673 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 06:35:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2024-11-09 06:35:36,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2024-11-09 06:35:36,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:35:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2024-11-09 06:35:36,674 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2024-11-09 06:35:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-11-09 06:35:36,674 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-11-09 06:35:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-09 06:35:36,674 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-09 06:35:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2024-11-09 06:35:36,674 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2024-11-09 06:35:36,674 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 06:35:36,675 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 06:35:36,675 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2024-11-09 06:35:36,675 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2024-11-09 06:35:36,675 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutDmaReg [2024-11-09 06:35:36,677 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutDmaReg [2024-11-09 06:35:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 06:35:36,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 06:35:36,681 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_cancel_transmit [2024-11-09 06:35:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_cancel_transmit [2024-11-09 06:35:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure usc_load_txfifo [2024-11-09 06:35:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_load_txfifo [2024-11-09 06:35:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2024-11-09 06:35:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2024-11-09 06:35:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2024-11-09 06:35:36,682 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2024-11-09 06:35:36,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 06:35:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-09 06:35:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-09 06:35:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-09 06:35:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-09 06:35:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-09 06:35:36,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-09 06:35:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 06:35:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:35:36,683 INFO L130 BoogieDeclarations]: Found specification of procedure usc_reset [2024-11-09 06:35:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_reset [2024-11-09 06:35:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_free_frame_memory [2024-11-09 06:35:36,684 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_free_frame_memory [2024-11-09 06:35:36,684 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InReg [2024-11-09 06:35:36,685 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InReg [2024-11-09 06:35:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2024-11-09 06:35:36,689 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2024-11-09 06:35:36,689 INFO L130 BoogieDeclarations]: Found specification of procedure usc_enable_loopback [2024-11-09 06:35:36,690 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_enable_loopback [2024-11-09 06:35:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_load_tx_dma_buffer [2024-11-09 06:35:36,690 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_load_tx_dma_buffer [2024-11-09 06:35:36,690 INFO L130 BoogieDeclarations]: Found specification of procedure usc_DmaCmd [2024-11-09 06:35:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_DmaCmd [2024-11-09 06:35:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_buffer [2024-11-09 06:35:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_buffer [2024-11-09 06:35:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-09 06:35:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-09 06:35:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2024-11-09 06:35:36,691 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2024-11-09 06:35:36,691 INFO L130 BoogieDeclarations]: Found specification of procedure usc_RTCmd [2024-11-09 06:35:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_RTCmd [2024-11-09 06:35:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:35:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_sdlc_mode [2024-11-09 06:35:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_sdlc_mode [2024-11-09 06:35:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_receiver [2024-11-09 06:35:36,692 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_receiver [2024-11-09 06:35:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:35:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:35:36,692 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-11-09 06:35:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-11-09 06:35:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_add_device [2024-11-09 06:35:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_add_device [2024-11-09 06:35:36,693 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_unthrottle [2024-11-09 06:35:36,693 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_unthrottle [2024-11-09 06:35:36,698 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_throttle [2024-11-09 06:35:36,698 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_throttle [2024-11-09 06:35:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutReg [2024-11-09 06:35:36,699 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutReg [2024-11-09 06:35:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 06:35:36,699 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 06:35:36,699 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2024-11-09 06:35:36,700 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2024-11-09 06:35:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_set_termios [2024-11-09 06:35:36,700 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_set_termios [2024-11-09 06:35:36,700 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2024-11-09 06:35:36,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2024-11-09 06:35:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-09 06:35:36,701 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-09 06:35:36,701 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_transmitter [2024-11-09 06:35:36,702 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_transmitter [2024-11-09 06:35:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:35:36,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:35:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2024-11-09 06:35:36,702 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2024-11-09 06:35:36,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 06:35:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 06:35:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_chars [2024-11-09 06:35:36,703 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_chars [2024-11-09 06:35:36,703 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-09 06:35:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-09 06:35:36,707 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-11-09 06:35:36,707 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-11-09 06:35:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_send_xchar [2024-11-09 06:35:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_send_xchar [2024-11-09 06:35:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_change_params [2024-11-09 06:35:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_change_params [2024-11-09 06:35:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 06:35:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 06:35:36,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 06:35:36,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 06:35:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure usc_get_serial_signals [2024-11-09 06:35:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_get_serial_signals [2024-11-09 06:35:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_reset_rx_dma_buffers [2024-11-09 06:35:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_reset_rx_dma_buffers [2024-11-09 06:35:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 06:35:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 06:35:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 06:35:36,709 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 06:35:36,709 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_transmitter [2024-11-09 06:35:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_transmitter [2024-11-09 06:35:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-09 06:35:36,710 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-09 06:35:36,710 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2024-11-09 06:35:36,712 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2024-11-09 06:35:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-09 06:35:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-09 06:35:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_paranoia_check [2024-11-09 06:35:36,713 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_paranoia_check [2024-11-09 06:35:36,713 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InDmaReg [2024-11-09 06:35:36,717 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InDmaReg [2024-11-09 06:35:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:35:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:35:36,717 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_active [2024-11-09 06:35:36,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_active [2024-11-09 06:35:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_stop [2024-11-09 06:35:36,718 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_stop [2024-11-09 06:35:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2024-11-09 06:35:36,718 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2024-11-09 06:35:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 06:35:36,718 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_remove_one [2024-11-09 06:35:36,718 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_remove_one [2024-11-09 06:35:36,719 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-09 06:35:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-09 06:35:36,719 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_cleanup [2024-11-09 06:35:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_cleanup [2024-11-09 06:35:36,719 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 06:35:36,719 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 06:35:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2024-11-09 06:35:36,722 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2024-11-09 06:35:36,722 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-09 06:35:36,722 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-09 06:35:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-09 06:35:36,723 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-09 06:35:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-09 06:35:36,723 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-09 06:35:36,723 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2024-11-09 06:35:36,727 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2024-11-09 06:35:36,727 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_write_room [2024-11-09 06:35:36,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_write_room [2024-11-09 06:35:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_break [2024-11-09 06:35:36,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_break [2024-11-09 06:35:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_allocate_device [2024-11-09 06:35:36,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_allocate_device [2024-11-09 06:35:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2024-11-09 06:35:36,728 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2024-11-09 06:35:36,728 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_install [2024-11-09 06:35:36,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_install [2024-11-09 06:35:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2024-11-09 06:35:36,729 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2024-11-09 06:35:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_release_resources [2024-11-09 06:35:36,729 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_release_resources [2024-11-09 06:35:36,729 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2024-11-09 06:35:36,730 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2024-11-09 06:35:36,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 06:35:36,731 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 06:35:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-09 06:35:36,731 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-09 06:35:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_send_done [2024-11-09 06:35:36,731 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_send_done [2024-11-09 06:35:36,731 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 06:35:36,732 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 06:35:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-09 06:35:36,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-09 06:35:36,732 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 06:35:36,733 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 06:35:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_ioctl [2024-11-09 06:35:36,736 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_ioctl [2024-11-09 06:35:36,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2024-11-09 06:35:36,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2024-11-09 06:35:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:35:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 06:35:36,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 06:35:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure msgl_get_icount [2024-11-09 06:35:36,737 INFO L138 BoogieDeclarations]: Found implementation of procedure msgl_get_icount [2024-11-09 06:35:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_chars_in_buffer [2024-11-09 06:35:36,737 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_chars_in_buffer [2024-11-09 06:35:36,737 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-09 06:35:36,738 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-09 06:35:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2024-11-09 06:35:36,738 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2024-11-09 06:35:36,738 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-09 06:35:36,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-09 06:35:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_put_char [2024-11-09 06:35:36,741 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_put_char [2024-11-09 06:35:36,741 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_program_hw [2024-11-09 06:35:36,741 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_program_hw [2024-11-09 06:35:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2024-11-09 06:35:36,742 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2024-11-09 06:35:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_hangup [2024-11-09 06:35:36,742 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_hangup [2024-11-09 06:35:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2024-11-09 06:35:36,746 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2024-11-09 06:35:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2024-11-09 06:35:36,746 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2024-11-09 06:35:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2024-11-09 06:35:36,747 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2024-11-09 06:35:36,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:35:36,747 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_alloc_frame_memory [2024-11-09 06:35:36,747 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_alloc_frame_memory [2024-11-09 06:35:36,747 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-09 06:35:36,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-09 06:35:36,747 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2024-11-09 06:35:36,747 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2024-11-09 06:35:37,981 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:35:37,985 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:36:12,702 INFO L? ?]: Removed 3079 outVars from TransFormulas that were not future-live. [2024-11-09 06:36:12,702 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:36:22,097 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:36:22,098 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:36:22,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:36:22 BoogieIcfgContainer [2024-11-09 06:36:22,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:36:22,102 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:36:22,103 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:36:22,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:36:22,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:35:31" (1/3) ... [2024-11-09 06:36:22,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b763c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:36:22, skipping insertion in model container [2024-11-09 06:36:22,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:35:35" (2/3) ... [2024-11-09 06:36:22,109 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b763c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:36:22, skipping insertion in model container [2024-11-09 06:36:22,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:36:22" (3/3) ... [2024-11-09 06:36:22,110 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2024-11-09 06:36:22,130 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:36:22,130 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:36:22,295 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:36:22,302 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;@14b04adf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:36:22,302 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:36:22,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 2828 states, 1701 states have (on average 1.3398001175778953) internal successors, (2279), 1773 states have internal predecessors, (2279), 1003 states have call successors, (1003), 122 states have call predecessors, (1003), 122 states have return successors, (1003), 992 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-09 06:36:22,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 06:36:22,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:22,353 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] [2024-11-09 06:36:22,353 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:36:22,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:22,362 INFO L85 PathProgramCache]: Analyzing trace with hash 96652756, now seen corresponding path program 1 times [2024-11-09 06:36:22,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:36:22,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027034794] [2024-11-09 06:36:22,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:22,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:36:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:36:28,121 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 06:36:28,122 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:36:28,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027034794] [2024-11-09 06:36:28,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027034794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:36:28,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:36:28,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:36:28,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057168861] [2024-11-09 06:36:28,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:36:28,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:36:28,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:36:28,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:36:28,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:36:28,164 INFO L87 Difference]: Start difference. First operand has 2828 states, 1701 states have (on average 1.3398001175778953) internal successors, (2279), 1773 states have internal predecessors, (2279), 1003 states have call successors, (1003), 122 states have call predecessors, (1003), 122 states have return successors, (1003), 992 states have call predecessors, (1003), 1003 states have call successors, (1003) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:36:30,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:36:33,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:36:35,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:36:37,559 WARN L539 Checker$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 06:36:40,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:36:42,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:36:45,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:36:48,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:36:50,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:36:53,261 WARN L539 Checker$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 06:36:55,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:36:58,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:36:58,739 INFO L93 Difference]: Finished difference Result 8430 states and 12800 transitions. [2024-11-09 06:36:58,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:36:58,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-11-09 06:36:58,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:36:58,810 INFO L225 Difference]: With dead ends: 8430 [2024-11-09 06:36:58,811 INFO L226 Difference]: Without dead ends: 5599 [2024-11-09 06:36:58,838 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 06:36:58,841 INFO L432 NwaCegarLoop]: 4007 mSDtfsCounter, 4248 mSDsluCounter, 3834 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 3 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4248 SdHoareTripleChecker+Valid, 7841 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:36:58,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4248 Valid, 7841 Invalid, 806 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 794 Invalid, 9 Unknown, 0 Unchecked, 30.0s Time] [2024-11-09 06:36:58,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5599 states. [2024-11-09 06:36:59,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5599 to 5595. [2024-11-09 06:36:59,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5595 states, 3365 states have (on average 1.337295690936107) internal successors, (4500), 3499 states have internal predecessors, (4500), 1987 states have call successors, (1987), 243 states have call predecessors, (1987), 242 states have return successors, (1981), 1959 states have call predecessors, (1981), 1981 states have call successors, (1981) [2024-11-09 06:36:59,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 8468 transitions. [2024-11-09 06:36:59,663 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 8468 transitions. Word has length 23 [2024-11-09 06:36:59,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:36:59,664 INFO L471 AbstractCegarLoop]: Abstraction has 5595 states and 8468 transitions. [2024-11-09 06:36:59,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 06:36:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 8468 transitions. [2024-11-09 06:36:59,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 06:36:59,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:36:59,678 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] [2024-11-09 06:36:59,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:36:59,679 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:36:59,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:36:59,682 INFO L85 PathProgramCache]: Analyzing trace with hash -94538499, now seen corresponding path program 1 times [2024-11-09 06:36:59,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:36:59,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364242558] [2024-11-09 06:36:59,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:36:59,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:05,025 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 06:37:05,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:37:05,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364242558] [2024-11-09 06:37:05,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364242558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:05,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:05,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:37:05,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180510264] [2024-11-09 06:37:05,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:05,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:37:05,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:37:05,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:37:05,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:37:05,035 INFO L87 Difference]: Start difference. First operand 5595 states and 8468 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:37:07,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:37:09,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:37:11,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:37:15,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:37:17,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:37:19,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:37:21,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:37:23,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:37:27,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:37:29,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:37:31,169 WARN L539 Checker$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 06:37:35,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:37:39,391 WARN L539 Checker$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 06:37:41,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:37:43,415 WARN L539 Checker$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 06:37:48,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:37:48,375 INFO L93 Difference]: Finished difference Result 8606 states and 12982 transitions. [2024-11-09 06:37:48,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:37:48,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-11-09 06:37:48,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:37:48,436 INFO L225 Difference]: With dead ends: 8606 [2024-11-09 06:37:48,436 INFO L226 Difference]: Without dead ends: 5599 [2024-11-09 06:37:48,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:37:48,467 INFO L432 NwaCegarLoop]: 3884 mSDtfsCounter, 1 mSDsluCounter, 7761 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 0 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11645 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:37:48,468 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11645 Invalid, 1176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1163 Invalid, 13 Unknown, 0 Unchecked, 42.9s Time] [2024-11-09 06:37:48,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5599 states. [2024-11-09 06:37:48,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5599 to 5597. [2024-11-09 06:37:48,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5597 states, 3367 states have (on average 1.3370953370953371) internal successors, (4502), 3501 states have internal predecessors, (4502), 1987 states have call successors, (1987), 243 states have call predecessors, (1987), 242 states have return successors, (1981), 1959 states have call predecessors, (1981), 1981 states have call successors, (1981) [2024-11-09 06:37:48,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 8470 transitions. [2024-11-09 06:37:49,005 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 8470 transitions. Word has length 34 [2024-11-09 06:37:49,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:37:49,007 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 8470 transitions. [2024-11-09 06:37:49,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 06:37:49,007 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 8470 transitions. [2024-11-09 06:37:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 06:37:49,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:37:49,015 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:37:49,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:37:49,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:37:49,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:37:49,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1956165911, now seen corresponding path program 1 times [2024-11-09 06:37:49,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:37:49,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444382047] [2024-11-09 06:37:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:37:49,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:37:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:37:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:37:55,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:37:55,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444382047] [2024-11-09 06:37:55,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444382047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:37:55,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:37:55,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:37:55,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331133964] [2024-11-09 06:37:55,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:37:55,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:37:55,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:37:55,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:37:55,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:37:55,271 INFO L87 Difference]: Start difference. First operand 5597 states and 8470 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:37:57,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:37:59,505 WARN L539 Checker$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 06:38:03,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:05,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:07,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:38:10,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:38:12,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:38:17,673 WARN L539 Checker$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 06:38:19,683 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 06:38:22,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:38:22,856 INFO L93 Difference]: Finished difference Result 5621 states and 8499 transitions. [2024-11-09 06:38:22,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:38:22,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2024-11-09 06:38:22,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:38:22,957 INFO L225 Difference]: With dead ends: 5621 [2024-11-09 06:38:22,958 INFO L226 Difference]: Without dead ends: 5610 [2024-11-09 06:38:22,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:38:22,964 INFO L432 NwaCegarLoop]: 3898 mSDtfsCounter, 4271 mSDsluCounter, 3909 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4271 SdHoareTripleChecker+Valid, 7807 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:38:22,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4271 Valid, 7807 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 771 Invalid, 8 Unknown, 0 Unchecked, 27.3s Time] [2024-11-09 06:38:22,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2024-11-09 06:38:23,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 5599. [2024-11-09 06:38:23,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5599 states, 3369 states have (on average 1.3368952211338676) internal successors, (4504), 3503 states have internal predecessors, (4504), 1987 states have call successors, (1987), 243 states have call predecessors, (1987), 242 states have return successors, (1981), 1959 states have call predecessors, (1981), 1981 states have call successors, (1981) [2024-11-09 06:38:23,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5599 states to 5599 states and 8472 transitions. [2024-11-09 06:38:23,373 INFO L78 Accepts]: Start accepts. Automaton has 5599 states and 8472 transitions. Word has length 39 [2024-11-09 06:38:23,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:38:23,374 INFO L471 AbstractCegarLoop]: Abstraction has 5599 states and 8472 transitions. [2024-11-09 06:38:23,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 06:38:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5599 states and 8472 transitions. [2024-11-09 06:38:23,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 06:38:23,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:38:23,383 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] [2024-11-09 06:38:23,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:38:23,384 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:38:23,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:38:23,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1656239679, now seen corresponding path program 1 times [2024-11-09 06:38:23,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:38:23,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855306244] [2024-11-09 06:38:23,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:38:23,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:38:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:38:27,181 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 06:38:27,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:38:27,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855306244] [2024-11-09 06:38:27,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855306244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:38:27,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:38:27,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:38:27,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980372620] [2024-11-09 06:38:27,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:38:27,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:38:27,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:38:27,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:38:27,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:38:27,185 INFO L87 Difference]: Start difference. First operand 5599 states and 8472 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:38:29,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:38:32,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:38:34,204 WARN L539 Checker$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 06:38:36,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:38:38,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:40,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:42,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:38:44,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:38:48,725 WARN L539 Checker$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 06:38:51,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:38:56,716 WARN L539 Checker$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 06:38:58,724 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 06:39:02,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:02,229 INFO L93 Difference]: Finished difference Result 11508 states and 17262 transitions. [2024-11-09 06:39:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:39:02,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2024-11-09 06:39:02,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:02,280 INFO L225 Difference]: With dead ends: 11508 [2024-11-09 06:39:02,280 INFO L226 Difference]: Without dead ends: 5910 [2024-11-09 06:39:02,318 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 06:39:02,323 INFO L432 NwaCegarLoop]: 4739 mSDtfsCounter, 2167 mSDsluCounter, 3608 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 8347 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:02,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 8347 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1136 Invalid, 11 Unknown, 0 Unchecked, 34.7s Time] [2024-11-09 06:39:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2024-11-09 06:39:02,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5895. [2024-11-09 06:39:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5895 states, 3467 states have (on average 1.3037207960773003) internal successors, (4520), 3584 states have internal predecessors, (4520), 2129 states have call successors, (2129), 299 states have call predecessors, (2129), 298 states have return successors, (2123), 2096 states have call predecessors, (2123), 2123 states have call successors, (2123) [2024-11-09 06:39:02,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5895 states to 5895 states and 8772 transitions. [2024-11-09 06:39:02,994 INFO L78 Accepts]: Start accepts. Automaton has 5895 states and 8772 transitions. Word has length 39 [2024-11-09 06:39:02,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:02,994 INFO L471 AbstractCegarLoop]: Abstraction has 5895 states and 8772 transitions. [2024-11-09 06:39:02,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 06:39:02,994 INFO L276 IsEmpty]: Start isEmpty. Operand 5895 states and 8772 transitions. [2024-11-09 06:39:02,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 06:39:02,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:03,000 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:03,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:39:03,000 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:03,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:03,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1593845358, now seen corresponding path program 1 times [2024-11-09 06:39:03,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:03,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988651821] [2024-11-09 06:39:03,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:03,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:07,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:39:07,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:07,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988651821] [2024-11-09 06:39:07,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988651821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:07,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:07,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:39:07,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586650492] [2024-11-09 06:39:07,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:07,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:39:07,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:07,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:39:07,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:39:07,047 INFO L87 Difference]: Start difference. First operand 5895 states and 8772 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 06:39:09,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:39:12,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:39:15,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:39:17,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:39:20,390 WARN L539 Checker$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 06:39:21,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:21,811 INFO L93 Difference]: Finished difference Result 5897 states and 8773 transitions. [2024-11-09 06:39:21,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:39:21,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-11-09 06:39:21,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:21,855 INFO L225 Difference]: With dead ends: 5897 [2024-11-09 06:39:21,856 INFO L226 Difference]: Without dead ends: 5894 [2024-11-09 06:39:21,861 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 06:39:21,862 INFO L432 NwaCegarLoop]: 3884 mSDtfsCounter, 4245 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4245 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:21,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4245 Valid, 3884 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 4 Unknown, 0 Unchecked, 14.5s Time] [2024-11-09 06:39:21,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5894 states. [2024-11-09 06:39:22,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5894 to 5894. [2024-11-09 06:39:22,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5894 states, 3467 states have (on average 1.3034323622728583) internal successors, (4519), 3583 states have internal predecessors, (4519), 2128 states have call successors, (2128), 299 states have call predecessors, (2128), 298 states have return successors, (2123), 2096 states have call predecessors, (2123), 2123 states have call successors, (2123) [2024-11-09 06:39:22,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 8770 transitions. [2024-11-09 06:39:22,301 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 8770 transitions. Word has length 45 [2024-11-09 06:39:22,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:22,302 INFO L471 AbstractCegarLoop]: Abstraction has 5894 states and 8770 transitions. [2024-11-09 06:39:22,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 06:39:22,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 8770 transitions. [2024-11-09 06:39:22,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 06:39:22,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:22,306 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:22,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:39:22,306 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:22,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:22,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2128666864, now seen corresponding path program 1 times [2024-11-09 06:39:22,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:22,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490169908] [2024-11-09 06:39:22,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:22,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:26,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:39:26,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:26,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490169908] [2024-11-09 06:39:26,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490169908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:26,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:26,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:39:26,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219596015] [2024-11-09 06:39:26,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:26,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:39:26,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:26,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:39:26,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:39:26,950 INFO L87 Difference]: Start difference. First operand 5894 states and 8770 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 06:39:29,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:39:30,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:39:32,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:39:34,167 WARN L539 Checker$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 06:39:36,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:39:40,614 WARN L539 Checker$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 06:39:42,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:39:42,138 INFO L93 Difference]: Finished difference Result 5896 states and 8771 transitions. [2024-11-09 06:39:42,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:39:42,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-11-09 06:39:42,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:39:42,167 INFO L225 Difference]: With dead ends: 5896 [2024-11-09 06:39:42,167 INFO L226 Difference]: Without dead ends: 5893 [2024-11-09 06:39:42,171 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 06:39:42,172 INFO L432 NwaCegarLoop]: 3882 mSDtfsCounter, 4242 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4242 SdHoareTripleChecker+Valid, 3882 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:39:42,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4242 Valid, 3882 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 4 Unknown, 0 Unchecked, 14.9s Time] [2024-11-09 06:39:42,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2024-11-09 06:39:42,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5893. [2024-11-09 06:39:42,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5893 states, 3467 states have (on average 1.3031439284684165) internal successors, (4518), 3582 states have internal predecessors, (4518), 2127 states have call successors, (2127), 299 states have call predecessors, (2127), 298 states have return successors, (2123), 2096 states have call predecessors, (2123), 2123 states have call successors, (2123) [2024-11-09 06:39:42,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5893 states to 5893 states and 8768 transitions. [2024-11-09 06:39:42,653 INFO L78 Accepts]: Start accepts. Automaton has 5893 states and 8768 transitions. Word has length 46 [2024-11-09 06:39:42,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:39:42,654 INFO L471 AbstractCegarLoop]: Abstraction has 5893 states and 8768 transitions. [2024-11-09 06:39:42,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 06:39:42,654 INFO L276 IsEmpty]: Start isEmpty. Operand 5893 states and 8768 transitions. [2024-11-09 06:39:42,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 06:39:42,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:39:42,658 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:39:42,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:39:42,658 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:39:42,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:39:42,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1562433621, now seen corresponding path program 1 times [2024-11-09 06:39:42,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:39:42,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583708445] [2024-11-09 06:39:42,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:39:42,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:39:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:39:46,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:39:46,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:39:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583708445] [2024-11-09 06:39:46,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583708445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:39:46,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:39:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:39:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686289654] [2024-11-09 06:39:46,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:39:46,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:39:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:39:46,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:39:46,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:39:46,418 INFO L87 Difference]: Start difference. First operand 5893 states and 8768 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 06:39:48,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:39:50,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:39:53,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:39:55,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:39:59,842 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 06:40:01,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:01,453 INFO L93 Difference]: Finished difference Result 5895 states and 8769 transitions. [2024-11-09 06:40:01,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:40:01,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-11-09 06:40:01,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:01,489 INFO L225 Difference]: With dead ends: 5895 [2024-11-09 06:40:01,489 INFO L226 Difference]: Without dead ends: 5892 [2024-11-09 06:40:01,493 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 06:40:01,494 INFO L432 NwaCegarLoop]: 3880 mSDtfsCounter, 4239 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4239 SdHoareTripleChecker+Valid, 3880 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:01,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4239 Valid, 3880 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 4 Unknown, 0 Unchecked, 14.7s Time] [2024-11-09 06:40:01,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2024-11-09 06:40:01,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2024-11-09 06:40:01,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 3467 states have (on average 1.3028554946639745) internal successors, (4517), 3581 states have internal predecessors, (4517), 2126 states have call successors, (2126), 299 states have call predecessors, (2126), 298 states have return successors, (2123), 2096 states have call predecessors, (2123), 2123 states have call successors, (2123) [2024-11-09 06:40:01,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8766 transitions. [2024-11-09 06:40:02,001 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8766 transitions. Word has length 47 [2024-11-09 06:40:02,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:02,003 INFO L471 AbstractCegarLoop]: Abstraction has 5892 states and 8766 transitions. [2024-11-09 06:40:02,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 06:40:02,003 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8766 transitions. [2024-11-09 06:40:02,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 06:40:02,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:02,006 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:40:02,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:40:02,007 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:40:02,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:02,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1189077139, now seen corresponding path program 1 times [2024-11-09 06:40:02,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:40:02,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529038253] [2024-11-09 06:40:02,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:02,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:40:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:06,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:40:06,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:40:06,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529038253] [2024-11-09 06:40:06,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529038253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:06,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:40:06,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:40:06,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396164061] [2024-11-09 06:40:06,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:06,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:40:06,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:40:06,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:40:06,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:40:06,049 INFO L87 Difference]: Start difference. First operand 5892 states and 8766 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 06:40:08,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:40:11,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:40:13,754 WARN L539 Checker$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 06:40:16,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:40:20,775 WARN L539 Checker$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 06:40:22,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:40:24,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:40:27,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:40:27,705 INFO L93 Difference]: Finished difference Result 6597 states and 9774 transitions. [2024-11-09 06:40:27,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:40:27,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2024-11-09 06:40:27,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:40:27,756 INFO L225 Difference]: With dead ends: 6597 [2024-11-09 06:40:27,757 INFO L226 Difference]: Without dead ends: 6549 [2024-11-09 06:40:27,769 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 06:40:27,769 INFO L432 NwaCegarLoop]: 3917 mSDtfsCounter, 4170 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4170 SdHoareTripleChecker+Valid, 4852 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:40:27,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4170 Valid, 4852 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 520 Invalid, 7 Unknown, 0 Unchecked, 21.3s Time] [2024-11-09 06:40:27,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6549 states. [2024-11-09 06:40:28,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6549 to 6547. [2024-11-09 06:40:28,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6547 states, 3813 states have (on average 1.2918961447678994) internal successors, (4926), 3933 states have internal predecessors, (4926), 2390 states have call successors, (2390), 344 states have call predecessors, (2390), 343 states have return successors, (2389), 2359 states have call predecessors, (2389), 2389 states have call successors, (2389) [2024-11-09 06:40:28,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6547 states to 6547 states and 9705 transitions. [2024-11-09 06:40:28,373 INFO L78 Accepts]: Start accepts. Automaton has 6547 states and 9705 transitions. Word has length 48 [2024-11-09 06:40:28,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:40:28,374 INFO L471 AbstractCegarLoop]: Abstraction has 6547 states and 9705 transitions. [2024-11-09 06:40:28,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 06:40:28,374 INFO L276 IsEmpty]: Start isEmpty. Operand 6547 states and 9705 transitions. [2024-11-09 06:40:28,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-09 06:40:28,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:40:28,389 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:40:28,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 06:40:28,390 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:40:28,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:40:28,390 INFO L85 PathProgramCache]: Analyzing trace with hash -247050437, now seen corresponding path program 1 times [2024-11-09 06:40:28,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:40:28,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101894965] [2024-11-09 06:40:28,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:40:28,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:40:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:40:33,868 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 06:40:33,868 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:40:33,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101894965] [2024-11-09 06:40:33,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101894965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:40:33,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:40:33,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:40:33,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877662254] [2024-11-09 06:40:33,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:40:33,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:40:33,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:40:33,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:40:33,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:40:33,872 INFO L87 Difference]: Start difference. First operand 6547 states and 9705 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:40:35,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:40:38,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:40:40,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:40:44,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:40:46,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:40:48,841 WARN L539 Checker$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 06:40:50,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:40:52,860 WARN L539 Checker$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 06:40:58,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:41:00,189 WARN L539 Checker$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 06:41:02,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:41:04,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:41:06,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:41:08,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:41:10,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:41:14,556 WARN L539 Checker$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 06:41:20,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:41:23,805 WARN L539 Checker$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 06:41:28,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:41:30,789 WARN L539 Checker$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 06:41:32,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:41:34,862 WARN L539 Checker$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 06:41:36,869 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 06:41:42,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:41:42,155 INFO L93 Difference]: Finished difference Result 14921 states and 22114 transitions. [2024-11-09 06:41:42,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:41:42,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92 [2024-11-09 06:41:42,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:41:42,223 INFO L225 Difference]: With dead ends: 14921 [2024-11-09 06:41:42,223 INFO L226 Difference]: Without dead ends: 9614 [2024-11-09 06:41:42,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:41:42,264 INFO L432 NwaCegarLoop]: 5205 mSDtfsCounter, 3555 mSDsluCounter, 8756 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 128 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3555 SdHoareTripleChecker+Valid, 13961 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:41:42,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3555 Valid, 13961 Invalid, 2098 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [128 Valid, 1949 Invalid, 21 Unknown, 0 Unchecked, 67.6s Time] [2024-11-09 06:41:42,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9614 states. [2024-11-09 06:41:43,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9614 to 9609. [2024-11-09 06:41:43,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9609 states, 5623 states have (on average 1.2845456162191) internal successors, (7223), 5809 states have internal predecessors, (7223), 3477 states have call successors, (3477), 509 states have call predecessors, (3477), 508 states have return successors, (3476), 3433 states have call predecessors, (3476), 3476 states have call successors, (3476) [2024-11-09 06:41:43,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9609 states to 9609 states and 14176 transitions. [2024-11-09 06:41:43,198 INFO L78 Accepts]: Start accepts. Automaton has 9609 states and 14176 transitions. Word has length 92 [2024-11-09 06:41:43,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:41:43,198 INFO L471 AbstractCegarLoop]: Abstraction has 9609 states and 14176 transitions. [2024-11-09 06:41:43,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:41:43,199 INFO L276 IsEmpty]: Start isEmpty. Operand 9609 states and 14176 transitions. [2024-11-09 06:41:43,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-09 06:41:43,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:41:43,220 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:41:43,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:41:43,220 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:41:43,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:41:43,221 INFO L85 PathProgramCache]: Analyzing trace with hash 682141687, now seen corresponding path program 1 times [2024-11-09 06:41:43,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:41:43,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176672164] [2024-11-09 06:41:43,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:41:43,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:41:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:41:47,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 06:41:47,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:41:47,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176672164] [2024-11-09 06:41:47,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176672164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:41:47,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:41:47,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:41:47,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679755549] [2024-11-09 06:41:47,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:41:47,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:41:47,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:41:47,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:41:47,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:41:47,816 INFO L87 Difference]: Start difference. First operand 9609 states and 14176 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:41:49,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:41:52,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:41:57,357 WARN L539 Checker$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 06:41:59,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:42:01,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:42:03,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:42:10,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 06:42:12,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:42:14,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:42:18,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:42:18,659 INFO L93 Difference]: Finished difference Result 9609 states and 14176 transitions. [2024-11-09 06:42:18,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:42:18,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 91 [2024-11-09 06:42:18,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:42:18,670 INFO L225 Difference]: With dead ends: 9609 [2024-11-09 06:42:18,670 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 06:42:18,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 06:42:18,698 INFO L432 NwaCegarLoop]: 4703 mSDtfsCounter, 1059 mSDsluCounter, 3810 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 8513 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:42:18,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 8513 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 885 Invalid, 9 Unknown, 0 Unchecked, 30.3s Time] [2024-11-09 06:42:18,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 06:42:18,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 06:42:18,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:42:18,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 06:42:18,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2024-11-09 06:42:18,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:42:18,706 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 06:42:18,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-09 06:42:18,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 06:42:18,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 06:42:18,709 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:42:18,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:42:18,713 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:42:18,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.