./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 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/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_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E --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 0.3.0-dev-826ab2b [2024-11-14 04:25:35,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:25:35,277 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 04:25:35,288 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:25:35,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:25:35,333 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:25:35,333 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:25:35,334 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:25:35,334 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:25:35,335 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:25:35,336 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:25:35,336 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:25:35,336 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:25:35,336 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:25:35,337 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:25:35,337 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:25:35,337 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:25:35,337 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:25:35,337 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:25:35,337 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:25:35,338 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:25:35,339 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:25:35,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:25:35,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:25:35,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:25:35,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:25:35,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:25:35,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:25:35,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:25:35,341 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:25:35,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:25:35,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:25:35,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:25:35,341 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:25:35,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:25:35,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:25:35,342 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:25:35,343 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:25:35,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:25:35,343 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:25:35,344 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:25:35,344 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:25:35,344 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:25:35,344 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:25:35,344 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E 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 [2024-11-14 04:25:35,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:25:35,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:25:35,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:25:35,831 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:25:35,831 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:25:35,833 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i Unable to find full path for "g++" [2024-11-14 04:25:38,157 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:25:39,181 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:25:39,182 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2024-11-14 04:25:39,259 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/data/2cba267e3/efd80bf62c6547d7a5a14374b3d79025/FLAG086fcdb3d [2024-11-14 04:25:39,286 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/data/2cba267e3/efd80bf62c6547d7a5a14374b3d79025 [2024-11-14 04:25:39,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:25:39,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:25:39,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:25:39,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:25:39,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:25:39,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:25:39" (1/1) ... [2024-11-14 04:25:39,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6d5d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:39, skipping insertion in model container [2024-11-14 04:25:39,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:25:39" (1/1) ... [2024-11-14 04:25:39,542 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:25:43,178 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_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2024-11-14 04:25:43,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:25:43,403 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:25:43,594 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] [2024-11-14 04:25:43,597 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] [2024-11-14 04:25:43,597 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] [2024-11-14 04:25:43,600 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] [2024-11-14 04:25:43,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5253] [2024-11-14 04:25:43,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5256] [2024-11-14 04:25:43,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5259] [2024-11-14 04:25:43,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5262] [2024-11-14 04:25:43,609 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] [2024-11-14 04:25:43,610 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] [2024-11-14 04:25:43,616 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5430] [2024-11-14 04:25:43,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5437] [2024-11-14 04:25:43,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5444] [2024-11-14 04:25:43,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5451] [2024-11-14 04:25:43,855 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] [2024-11-14 04:25:43,855 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] [2024-11-14 04:25:43,857 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] [2024-11-14 04:25:43,857 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] [2024-11-14 04:25:43,859 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] [2024-11-14 04:25:43,860 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] [2024-11-14 04:25:43,860 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] [2024-11-14 04:25:43,861 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] [2024-11-14 04:25:43,865 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] [2024-11-14 04:25:43,866 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] [2024-11-14 04:25:43,866 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] [2024-11-14 04:25:43,866 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] [2024-11-14 04:25:43,868 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] [2024-11-14 04:25:43,868 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] [2024-11-14 04:25:43,868 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] [2024-11-14 04:25:43,868 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] [2024-11-14 04:25:43,869 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] [2024-11-14 04:25:43,872 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] [2024-11-14 04:25:43,872 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] [2024-11-14 04:25:43,873 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] [2024-11-14 04:25:43,873 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] [2024-11-14 04:25:43,876 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] [2024-11-14 04:25:43,877 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] [2024-11-14 04:25:43,878 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] [2024-11-14 04:25:43,878 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] [2024-11-14 04:25:43,881 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] [2024-11-14 04:25:43,882 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] [2024-11-14 04:25:43,882 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] [2024-11-14 04:25:43,882 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] [2024-11-14 04:25:43,914 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] [2024-11-14 04:25:43,915 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] [2024-11-14 04:25:43,916 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] [2024-11-14 04:25:43,916 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] [2024-11-14 04:25:43,918 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] [2024-11-14 04:25:43,919 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] [2024-11-14 04:25:43,919 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] [2024-11-14 04:25:43,920 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] [2024-11-14 04:25:44,240 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_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2024-11-14 04:25:44,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:25:44,507 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:25:44,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44 WrapperNode [2024-11-14 04:25:44,509 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:25:44,510 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:25:44,510 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:25:44,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:25:44,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (1/1) ... [2024-11-14 04:25:44,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (1/1) ... [2024-11-14 04:25:45,140 INFO L138 Inliner]: procedures = 395, calls = 4272, calls flagged for inlining = 201, calls inlined = 148, statements flattened = 8820 [2024-11-14 04:25:45,141 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:25:45,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:25:45,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:25:45,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:25:45,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (1/1) ... [2024-11-14 04:25:45,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (1/1) ... [2024-11-14 04:25:45,234 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (1/1) ... [2024-11-14 04:25:45,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (1/1) ... [2024-11-14 04:25:45,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (1/1) ... [2024-11-14 04:25:45,708 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (1/1) ... [2024-11-14 04:25:45,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (1/1) ... [2024-11-14 04:25:45,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (1/1) ... [2024-11-14 04:25:45,880 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:25:45,881 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:25:45,882 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:25:45,882 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:25:45,883 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (1/1) ... [2024-11-14 04:25:45,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:25:45,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:25:45,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:25:45,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ead7e0e-4b78-4e4b-adbf-a372bdd10c6f/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:25:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_wait_until_sent [2024-11-14 04:25:45,971 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_wait_until_sent [2024-11-14 04:25:45,971 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2024-11-14 04:25:45,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __xchg_wrong_size [2024-11-14 04:25:45,972 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-14 04:25:45,972 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-14 04:25:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_start [2024-11-14 04:25:45,973 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_start [2024-11-14 04:25:45,973 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_txidle [2024-11-14 04:25:45,974 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_txidle [2024-11-14 04:25:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2024-11-14 04:25:45,974 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2024-11-14 04:25:45,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 04:25:45,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 04:25:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopback_frame [2024-11-14 04:25:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopback_frame [2024-11-14 04:25:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2024-11-14 04:25:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2024-11-14 04:25:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_receiver [2024-11-14 04:25:45,976 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_receiver [2024-11-14 04:25:45,976 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_serial_signals [2024-11-14 04:25:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_serial_signals [2024-11-14 04:25:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_trace_block [2024-11-14 04:25:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_trace_block [2024-11-14 04:25:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2024-11-14 04:25:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2024-11-14 04:25:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-14 04:25:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-14 04:25:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mgsl_ops_disconnect_2 [2024-11-14 04:25:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mgsl_ops_disconnect_2 [2024-11-14 04:25:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2024-11-14 04:25:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2024-11-14 04:25:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-14 04:25:45,977 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-14 04:25:45,977 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2024-11-14 04:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2024-11-14 04:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure load_next_tx_holding_buffer [2024-11-14 04:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure load_next_tx_holding_buffer [2024-11-14 04:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-14 04:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-14 04:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2024-11-14 04:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2024-11-14 04:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2024-11-14 04:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2024-11-14 04:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-11-14 04:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-11-14 04:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-14 04:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-14 04:25:45,978 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2024-11-14 04:25:45,978 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2024-11-14 04:25:45,982 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-14 04:25:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-14 04:25:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2024-11-14 04:25:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2024-11-14 04:25:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutDmaReg [2024-11-14 04:25:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutDmaReg [2024-11-14 04:25:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-14 04:25:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-14 04:25:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_cancel_transmit [2024-11-14 04:25:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_cancel_transmit [2024-11-14 04:25:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure usc_load_txfifo [2024-11-14 04:25:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_load_txfifo [2024-11-14 04:25:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2024-11-14 04:25:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2024-11-14 04:25:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2024-11-14 04:25:45,983 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2024-11-14 04:25:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-14 04:25:45,983 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-14 04:25:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-14 04:25:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-14 04:25:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-14 04:25:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-14 04:25:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-14 04:25:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 04:25:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:25:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure usc_reset [2024-11-14 04:25:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_reset [2024-11-14 04:25:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_free_frame_memory [2024-11-14 04:25:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_free_frame_memory [2024-11-14 04:25:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InReg [2024-11-14 04:25:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InReg [2024-11-14 04:25:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2024-11-14 04:25:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2024-11-14 04:25:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure usc_enable_loopback [2024-11-14 04:25:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_enable_loopback [2024-11-14 04:25:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_load_tx_dma_buffer [2024-11-14 04:25:45,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_load_tx_dma_buffer [2024-11-14 04:25:45,984 INFO L130 BoogieDeclarations]: Found specification of procedure usc_DmaCmd [2024-11-14 04:25:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_DmaCmd [2024-11-14 04:25:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_buffer [2024-11-14 04:25:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_buffer [2024-11-14 04:25:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-14 04:25:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-14 04:25:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2024-11-14 04:25:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2024-11-14 04:25:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure usc_RTCmd [2024-11-14 04:25:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_RTCmd [2024-11-14 04:25:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 04:25:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_sdlc_mode [2024-11-14 04:25:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_sdlc_mode [2024-11-14 04:25:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_receiver [2024-11-14 04:25:45,985 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_receiver [2024-11-14 04:25:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:25:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 04:25:45,985 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-11-14 04:25:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-11-14 04:25:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_add_device [2024-11-14 04:25:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_add_device [2024-11-14 04:25:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_unthrottle [2024-11-14 04:25:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_unthrottle [2024-11-14 04:25:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_throttle [2024-11-14 04:25:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_throttle [2024-11-14 04:25:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutReg [2024-11-14 04:25:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutReg [2024-11-14 04:25:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-14 04:25:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-14 04:25:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2024-11-14 04:25:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2024-11-14 04:25:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_set_termios [2024-11-14 04:25:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_set_termios [2024-11-14 04:25:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2024-11-14 04:25:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2024-11-14 04:25:45,990 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-14 04:25:45,990 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_transmitter [2024-11-14 04:25:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_transmitter [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:25:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2024-11-14 04:25:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_chars [2024-11-14 04:25:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_chars [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-14 04:25:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-11-14 04:25:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_send_xchar [2024-11-14 04:25:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_send_xchar [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_change_params [2024-11-14 04:25:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_change_params [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-14 04:25:45,991 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-14 04:25:45,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-14 04:25:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-14 04:25:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure usc_get_serial_signals [2024-11-14 04:25:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_get_serial_signals [2024-11-14 04:25:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_reset_rx_dma_buffers [2024-11-14 04:25:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_reset_rx_dma_buffers [2024-11-14 04:25:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 04:25:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 04:25:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-14 04:25:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-14 04:25:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_transmitter [2024-11-14 04:25:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_transmitter [2024-11-14 04:25:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-14 04:25:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-14 04:25:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2024-11-14 04:25:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2024-11-14 04:25:45,992 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-14 04:25:45,992 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-14 04:25:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_paranoia_check [2024-11-14 04:25:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_paranoia_check [2024-11-14 04:25:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InDmaReg [2024-11-14 04:25:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InDmaReg [2024-11-14 04:25:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:25:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 04:25:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_active [2024-11-14 04:25:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_active [2024-11-14 04:25:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_stop [2024-11-14 04:25:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_stop [2024-11-14 04:25:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2024-11-14 04:25:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2024-11-14 04:25:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-14 04:25:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_remove_one [2024-11-14 04:25:45,993 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_remove_one [2024-11-14 04:25:45,993 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-14 04:25:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-14 04:25:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_cleanup [2024-11-14 04:25:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_cleanup [2024-11-14 04:25:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-14 04:25:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-14 04:25:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2024-11-14 04:25:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2024-11-14 04:25:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-14 04:25:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-14 04:25:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-14 04:25:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-14 04:25:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-14 04:25:45,994 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-14 04:25:45,994 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2024-11-14 04:25:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2024-11-14 04:25:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_write_room [2024-11-14 04:25:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_write_room [2024-11-14 04:25:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_break [2024-11-14 04:25:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_break [2024-11-14 04:25:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_allocate_device [2024-11-14 04:25:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_allocate_device [2024-11-14 04:25:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2024-11-14 04:25:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2024-11-14 04:25:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_install [2024-11-14 04:25:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_install [2024-11-14 04:25:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2024-11-14 04:25:45,995 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2024-11-14 04:25:45,995 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_release_resources [2024-11-14 04:25:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_release_resources [2024-11-14 04:25:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2024-11-14 04:25:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2024-11-14 04:25:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-14 04:25:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-14 04:25:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-14 04:25:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-14 04:25:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_send_done [2024-11-14 04:25:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_send_done [2024-11-14 04:25:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-14 04:25:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-14 04:25:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-14 04:25:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-14 04:25:45,996 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-14 04:25:45,996 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-14 04:25:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_ioctl [2024-11-14 04:25:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_ioctl [2024-11-14 04:25:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2024-11-14 04:25:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2024-11-14 04:25:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:25:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 04:25:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 04:25:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure msgl_get_icount [2024-11-14 04:25:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure msgl_get_icount [2024-11-14 04:25:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_chars_in_buffer [2024-11-14 04:25:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_chars_in_buffer [2024-11-14 04:25:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-14 04:25:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-14 04:25:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2024-11-14 04:25:45,997 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2024-11-14 04:25:45,997 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-14 04:25:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-14 04:25:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_put_char [2024-11-14 04:25:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_put_char [2024-11-14 04:25:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_program_hw [2024-11-14 04:25:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_program_hw [2024-11-14 04:25:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2024-11-14 04:25:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2024-11-14 04:25:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_hangup [2024-11-14 04:25:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_hangup [2024-11-14 04:25:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2024-11-14 04:25:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2024-11-14 04:25:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2024-11-14 04:25:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2024-11-14 04:25:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2024-11-14 04:25:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2024-11-14 04:25:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:25:45,998 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_alloc_frame_memory [2024-11-14 04:25:45,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_alloc_frame_memory [2024-11-14 04:25:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-11-14 04:25:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-11-14 04:25:45,999 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2024-11-14 04:25:45,999 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2024-11-14 04:25:47,365 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:25:47,370 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:26:24,746 INFO L? ?]: Removed 3079 outVars from TransFormulas that were not future-live. [2024-11-14 04:26:24,747 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:26:34,698 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:26:34,698 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:26:34,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:26:34 BoogieIcfgContainer [2024-11-14 04:26:34,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:26:34,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:26:34,702 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:26:34,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:26:34,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:25:39" (1/3) ... [2024-11-14 04:26:34,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b457c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:26:34, skipping insertion in model container [2024-11-14 04:26:34,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:25:44" (2/3) ... [2024-11-14 04:26:34,717 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b457c16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:26:34, skipping insertion in model container [2024-11-14 04:26:34,717 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:26:34" (3/3) ... [2024-11-14 04:26:34,718 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2024-11-14 04:26:34,744 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:26:34,748 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i that has 123 procedures, 2828 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-14 04:26:34,934 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:26:34,954 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;@54556696, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:26:34,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:26:34,972 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) [2024-11-14 04:26:35,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 04:26:35,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:26:35,009 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] [2024-11-14 04:26:35,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:26:35,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:26:35,020 INFO L85 PathProgramCache]: Analyzing trace with hash 96652756, now seen corresponding path program 1 times [2024-11-14 04:26:35,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:26:35,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182471802] [2024-11-14 04:26:35,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:26:35,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:26:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:26:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:26:40,717 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:26:40,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182471802] [2024-11-14 04:26:40,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182471802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:26:40,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:26:40,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:26:40,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973013975] [2024-11-14 04:26:40,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:26:40,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:26:40,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:26:40,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:26:40,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:26:40,777 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) [2024-11-14 04:26:42,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:46,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:26:49,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:26:52,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:26:54,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:26:56,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:02,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:04,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:06,997 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 [] [2024-11-14 04:27:11,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:27:11,064 INFO L93 Difference]: Finished difference Result 8430 states and 12800 transitions. [2024-11-14 04:27:11,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:27:11,068 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 [2024-11-14 04:27:11,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:27:11,177 INFO L225 Difference]: With dead ends: 8430 [2024-11-14 04:27:11,177 INFO L226 Difference]: Without dead ends: 5599 [2024-11-14 04:27:11,221 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 [2024-11-14 04:27:11,226 INFO L432 NwaCegarLoop]: 4007 mSDtfsCounter, 4248 mSDsluCounter, 3834 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4248 SdHoareTripleChecker+Valid, 7841 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:27:11,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4248 Valid, 7841 Invalid, 806 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 795 Invalid, 8 Unknown, 0 Unchecked, 29.6s Time] [2024-11-14 04:27:11,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5599 states. [2024-11-14 04:27:12,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5599 to 5595. [2024-11-14 04:27:12,310 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) [2024-11-14 04:27:12,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5595 states to 5595 states and 8468 transitions. [2024-11-14 04:27:12,492 INFO L78 Accepts]: Start accepts. Automaton has 5595 states and 8468 transitions. Word has length 23 [2024-11-14 04:27:12,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:27:12,493 INFO L471 AbstractCegarLoop]: Abstraction has 5595 states and 8468 transitions. [2024-11-14 04:27:12,493 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) [2024-11-14 04:27:12,493 INFO L276 IsEmpty]: Start isEmpty. Operand 5595 states and 8468 transitions. [2024-11-14 04:27:12,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-14 04:27:12,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:27:12,518 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] [2024-11-14 04:27:12,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:27:12,518 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:27:12,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:27:12,519 INFO L85 PathProgramCache]: Analyzing trace with hash -94538499, now seen corresponding path program 1 times [2024-11-14 04:27:12,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:27:12,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661775296] [2024-11-14 04:27:12,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:27:12,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:27:18,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:27:18,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:27:18,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:27:18,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661775296] [2024-11-14 04:27:18,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661775296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:27:18,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:27:18,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:27:18,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037579756] [2024-11-14 04:27:18,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:27:18,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:27:18,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:27:18,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:27:18,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:27:18,732 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) [2024-11-14 04:27:20,819 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 [] [2024-11-14 04:27:22,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:25,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:27,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:28,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:30,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:27:32,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:27:34,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:27:37,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:39,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:43,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:45,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:47,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:54,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:56,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:27:58,287 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 [] [2024-11-14 04:28:03,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:28:03,002 INFO L93 Difference]: Finished difference Result 8606 states and 12982 transitions. [2024-11-14 04:28:03,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:28:03,003 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 [2024-11-14 04:28:03,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:28:03,062 INFO L225 Difference]: With dead ends: 8606 [2024-11-14 04:28:03,063 INFO L226 Difference]: Without dead ends: 5599 [2024-11-14 04:28:03,090 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 [2024-11-14 04:28:03,091 INFO L432 NwaCegarLoop]: 3884 mSDtfsCounter, 1 mSDsluCounter, 7761 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 0 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s 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, 43.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:28:03,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11645 Invalid, 1176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1163 Invalid, 13 Unknown, 0 Unchecked, 43.9s Time] [2024-11-14 04:28:03,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5599 states. [2024-11-14 04:28:03,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5599 to 5597. [2024-11-14 04:28:03,520 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) [2024-11-14 04:28:03,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 8470 transitions. [2024-11-14 04:28:03,577 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 8470 transitions. Word has length 34 [2024-11-14 04:28:03,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:28:03,578 INFO L471 AbstractCegarLoop]: Abstraction has 5597 states and 8470 transitions. [2024-11-14 04:28:03,578 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) [2024-11-14 04:28:03,579 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 8470 transitions. [2024-11-14 04:28:03,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 04:28:03,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:03,589 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] [2024-11-14 04:28:03,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:28:03,590 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:28:03,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:03,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1956165911, now seen corresponding path program 1 times [2024-11-14 04:28:03,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:28:03,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194434692] [2024-11-14 04:28:03,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:03,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:28:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:09,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:28:09,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:28:09,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194434692] [2024-11-14 04:28:09,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194434692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:28:09,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:28:09,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:28:09,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443468914] [2024-11-14 04:28:09,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:28:09,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:28:09,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:28:09,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:28:09,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:28:09,066 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) [2024-11-14 04:28:11,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:13,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:17,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:28:19,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:28:21,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:25,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:27,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:31,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:33,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:37,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:28:37,141 INFO L93 Difference]: Finished difference Result 5621 states and 8499 transitions. [2024-11-14 04:28:37,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:28:37,142 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 [2024-11-14 04:28:37,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:28:37,190 INFO L225 Difference]: With dead ends: 5621 [2024-11-14 04:28:37,190 INFO L226 Difference]: Without dead ends: 5610 [2024-11-14 04:28:37,196 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 [2024-11-14 04:28:37,197 INFO L432 NwaCegarLoop]: 3898 mSDtfsCounter, 4271 mSDsluCounter, 3909 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s 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, 27.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:28:37,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4271 Valid, 7807 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 771 Invalid, 8 Unknown, 0 Unchecked, 27.8s Time] [2024-11-14 04:28:37,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5610 states. [2024-11-14 04:28:37,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5610 to 5599. [2024-11-14 04:28:37,562 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) [2024-11-14 04:28:37,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5599 states to 5599 states and 8472 transitions. [2024-11-14 04:28:37,606 INFO L78 Accepts]: Start accepts. Automaton has 5599 states and 8472 transitions. Word has length 39 [2024-11-14 04:28:37,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:28:37,607 INFO L471 AbstractCegarLoop]: Abstraction has 5599 states and 8472 transitions. [2024-11-14 04:28:37,611 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) [2024-11-14 04:28:37,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5599 states and 8472 transitions. [2024-11-14 04:28:37,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-14 04:28:37,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:28:37,623 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] [2024-11-14 04:28:37,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:28:37,623 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:28:37,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:28:37,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1656239679, now seen corresponding path program 1 times [2024-11-14 04:28:37,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:28:37,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10152855] [2024-11-14 04:28:37,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:28:37,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:28:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:28:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:28:41,871 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:28:41,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10152855] [2024-11-14 04:28:41,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10152855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:28:41,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:28:41,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:28:41,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776110977] [2024-11-14 04:28:41,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:28:41,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:28:41,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:28:41,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:28:41,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:28:41,873 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) [2024-11-14 04:28:43,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:46,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:48,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:51,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:53,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:28:55,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:28:57,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:28:59,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:02,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:04,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:08,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:29:11,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:15,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:17,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:20,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:20,992 INFO L93 Difference]: Finished difference Result 11508 states and 17262 transitions. [2024-11-14 04:29:20,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:29:20,993 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 [2024-11-14 04:29:20,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:21,037 INFO L225 Difference]: With dead ends: 11508 [2024-11-14 04:29:21,037 INFO L226 Difference]: Without dead ends: 5910 [2024-11-14 04:29:21,081 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 [2024-11-14 04:29:21,084 INFO L432 NwaCegarLoop]: 4739 mSDtfsCounter, 2167 mSDsluCounter, 3608 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 1 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 8347 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:21,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 8347 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1134 Invalid, 13 Unknown, 0 Unchecked, 38.8s Time] [2024-11-14 04:29:21,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2024-11-14 04:29:21,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5895. [2024-11-14 04:29:21,529 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) [2024-11-14 04:29:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5895 states to 5895 states and 8772 transitions. [2024-11-14 04:29:21,575 INFO L78 Accepts]: Start accepts. Automaton has 5895 states and 8772 transitions. Word has length 39 [2024-11-14 04:29:21,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:21,576 INFO L471 AbstractCegarLoop]: Abstraction has 5895 states and 8772 transitions. [2024-11-14 04:29:21,577 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) [2024-11-14 04:29:21,577 INFO L276 IsEmpty]: Start isEmpty. Operand 5895 states and 8772 transitions. [2024-11-14 04:29:21,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-14 04:29:21,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:21,582 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] [2024-11-14 04:29:21,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:29:21,582 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:29:21,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:21,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1593845358, now seen corresponding path program 1 times [2024-11-14 04:29:21,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:21,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478821377] [2024-11-14 04:29:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:21,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:25,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:29:25,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:25,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478821377] [2024-11-14 04:29:25,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478821377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:25,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:25,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:29:25,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628717763] [2024-11-14 04:29:25,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:25,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:29:25,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:29:25,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:29:25,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:29:25,677 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) [2024-11-14 04:29:27,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:30,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:31,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:33,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:36,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:29:40,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:41,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:41,957 INFO L93 Difference]: Finished difference Result 5897 states and 8773 transitions. [2024-11-14 04:29:41,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:29:41,958 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 [2024-11-14 04:29:41,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:41,997 INFO L225 Difference]: With dead ends: 5897 [2024-11-14 04:29:41,997 INFO L226 Difference]: Without dead ends: 5894 [2024-11-14 04:29:42,001 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 [2024-11-14 04:29:42,002 INFO L432 NwaCegarLoop]: 3884 mSDtfsCounter, 4245 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4245 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:42,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4245 Valid, 3884 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 5 Unknown, 0 Unchecked, 16.1s Time] [2024-11-14 04:29:42,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5894 states. [2024-11-14 04:29:42,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5894 to 5894. [2024-11-14 04:29:42,417 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) [2024-11-14 04:29:42,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5894 states to 5894 states and 8770 transitions. [2024-11-14 04:29:42,459 INFO L78 Accepts]: Start accepts. Automaton has 5894 states and 8770 transitions. Word has length 45 [2024-11-14 04:29:42,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:42,460 INFO L471 AbstractCegarLoop]: Abstraction has 5894 states and 8770 transitions. [2024-11-14 04:29:42,460 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) [2024-11-14 04:29:42,460 INFO L276 IsEmpty]: Start isEmpty. Operand 5894 states and 8770 transitions. [2024-11-14 04:29:42,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-14 04:29:42,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:42,464 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] [2024-11-14 04:29:42,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:29:42,465 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:29:42,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:42,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2128666864, now seen corresponding path program 1 times [2024-11-14 04:29:42,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:42,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829865862] [2024-11-14 04:29:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:42,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:29:46,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:46,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829865862] [2024-11-14 04:29:46,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829865862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:46,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:46,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:29:46,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256853264] [2024-11-14 04:29:46,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:46,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:29:46,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:29:46,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:29:46,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:29:46,972 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) [2024-11-14 04:29:49,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:50,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:52,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:54,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:29:56,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:29:59,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:30:02,597 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 [] [2024-11-14 04:30:04,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:30:04,161 INFO L93 Difference]: Finished difference Result 5896 states and 8771 transitions. [2024-11-14 04:30:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:30:04,162 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 [2024-11-14 04:30:04,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:30:04,199 INFO L225 Difference]: With dead ends: 5896 [2024-11-14 04:30:04,199 INFO L226 Difference]: Without dead ends: 5893 [2024-11-14 04:30:04,203 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 [2024-11-14 04:30:04,204 INFO L432 NwaCegarLoop]: 3882 mSDtfsCounter, 4242 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s 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, 16.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:30:04,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4242 Valid, 3882 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 384 Invalid, 4 Unknown, 0 Unchecked, 16.8s Time] [2024-11-14 04:30:04,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2024-11-14 04:30:04,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5893. [2024-11-14 04:30:04,836 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) [2024-11-14 04:30:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5893 states to 5893 states and 8768 transitions. [2024-11-14 04:30:04,873 INFO L78 Accepts]: Start accepts. Automaton has 5893 states and 8768 transitions. Word has length 46 [2024-11-14 04:30:04,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:30:04,873 INFO L471 AbstractCegarLoop]: Abstraction has 5893 states and 8768 transitions. [2024-11-14 04:30:04,873 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) [2024-11-14 04:30:04,874 INFO L276 IsEmpty]: Start isEmpty. Operand 5893 states and 8768 transitions. [2024-11-14 04:30:04,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-14 04:30:04,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:30:04,877 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] [2024-11-14 04:30:04,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:30:04,877 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:30:04,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:30:04,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1562433621, now seen corresponding path program 1 times [2024-11-14 04:30:04,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:30:04,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890154915] [2024-11-14 04:30:04,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:30:04,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:30:09,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:30:09,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:30:09,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:30:09,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890154915] [2024-11-14 04:30:09,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890154915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:30:09,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:30:09,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:30:09,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077461910] [2024-11-14 04:30:09,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:30:09,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:30:09,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:30:09,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:30:09,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:30:09,688 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) [2024-11-14 04:30:11,771 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 [] [2024-11-14 04:30:14,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:30:17,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:30:19,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:30:22,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:30:25,373 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 [] [2024-11-14 04:30:26,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:30:26,990 INFO L93 Difference]: Finished difference Result 5895 states and 8769 transitions. [2024-11-14 04:30:26,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:30:26,991 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 [2024-11-14 04:30:26,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:30:27,046 INFO L225 Difference]: With dead ends: 5895 [2024-11-14 04:30:27,046 INFO L226 Difference]: Without dead ends: 5892 [2024-11-14 04:30:27,053 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 [2024-11-14 04:30:27,055 INFO L432 NwaCegarLoop]: 3880 mSDtfsCounter, 4239 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4239 SdHoareTripleChecker+Valid, 3880 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:30:27,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4239 Valid, 3880 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 6 Unknown, 0 Unchecked, 17.0s Time] [2024-11-14 04:30:27,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2024-11-14 04:30:27,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2024-11-14 04:30:27,624 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) [2024-11-14 04:30:27,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8766 transitions. [2024-11-14 04:30:27,671 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8766 transitions. Word has length 47 [2024-11-14 04:30:27,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:30:27,672 INFO L471 AbstractCegarLoop]: Abstraction has 5892 states and 8766 transitions. [2024-11-14 04:30:27,672 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) [2024-11-14 04:30:27,672 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8766 transitions. [2024-11-14 04:30:27,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-14 04:30:27,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:30:27,677 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] [2024-11-14 04:30:27,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 04:30:27,678 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:30:27,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:30:27,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1189077139, now seen corresponding path program 1 times [2024-11-14 04:30:27,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:30:27,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600770576] [2024-11-14 04:30:27,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:30:27,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:30:31,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:30:31,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:30:31,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:30:31,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600770576] [2024-11-14 04:30:31,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600770576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:30:31,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:30:31,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:30:31,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242501073] [2024-11-14 04:30:31,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:30:31,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:30:31,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:30:31,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:30:31,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:30:31,813 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) [2024-11-14 04:30:33,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:30:37,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:30:39,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:30:41,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:30:46,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:30:48,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:30:50,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:30:54,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:30:54,132 INFO L93 Difference]: Finished difference Result 6597 states and 9774 transitions. [2024-11-14 04:30:54,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:30:54,133 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 [2024-11-14 04:30:54,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:30:54,185 INFO L225 Difference]: With dead ends: 6597 [2024-11-14 04:30:54,185 INFO L226 Difference]: Without dead ends: 6549 [2024-11-14 04:30:54,195 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 [2024-11-14 04:30:54,195 INFO L432 NwaCegarLoop]: 3917 mSDtfsCounter, 4170 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s 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, 21.9s IncrementalHoareTripleChecker+Time [2024-11-14 04:30:54,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4170 Valid, 4852 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 520 Invalid, 7 Unknown, 0 Unchecked, 21.9s Time] [2024-11-14 04:30:54,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6549 states. [2024-11-14 04:30:54,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6549 to 6547. [2024-11-14 04:30:54,830 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) [2024-11-14 04:30:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6547 states to 6547 states and 9705 transitions. [2024-11-14 04:30:54,870 INFO L78 Accepts]: Start accepts. Automaton has 6547 states and 9705 transitions. Word has length 48 [2024-11-14 04:30:54,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:30:54,871 INFO L471 AbstractCegarLoop]: Abstraction has 6547 states and 9705 transitions. [2024-11-14 04:30:54,871 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) [2024-11-14 04:30:54,871 INFO L276 IsEmpty]: Start isEmpty. Operand 6547 states and 9705 transitions. [2024-11-14 04:30:54,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 04:30:54,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:30:54,888 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] [2024-11-14 04:30:54,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 04:30:54,888 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:30:54,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:30:54,889 INFO L85 PathProgramCache]: Analyzing trace with hash -247050437, now seen corresponding path program 1 times [2024-11-14 04:30:54,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:30:54,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307733822] [2024-11-14 04:30:54,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:30:54,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:30:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:30:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-14 04:30:59,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:30:59,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307733822] [2024-11-14 04:30:59,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307733822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:30:59,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:30:59,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:30:59,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528359721] [2024-11-14 04:30:59,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:30:59,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:30:59,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:30:59,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:30:59,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:30:59,885 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) [2024-11-14 04:31:01,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:04,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:06,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:10,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:12,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:15,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:17,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:19,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:22,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:25,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:27,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:30,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:31:32,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:31:34,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:31:36,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:31:38,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:31:53,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:55,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:57,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:59,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:32:01,306 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 [] [2024-11-14 04:32:06,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:06,804 INFO L93 Difference]: Finished difference Result 14921 states and 22114 transitions. [2024-11-14 04:32:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 04:32:06,805 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 [2024-11-14 04:32:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:06,874 INFO L225 Difference]: With dead ends: 14921 [2024-11-14 04:32:06,875 INFO L226 Difference]: Without dead ends: 9614 [2024-11-14 04:32:06,914 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 [2024-11-14 04:32:06,914 INFO L432 NwaCegarLoop]: 5205 mSDtfsCounter, 3555 mSDsluCounter, 8756 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 128 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3555 SdHoareTripleChecker+Valid, 13961 SdHoareTripleChecker+Invalid, 2098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:06,915 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3555 Valid, 13961 Invalid, 2098 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [128 Valid, 1950 Invalid, 20 Unknown, 0 Unchecked, 66.1s Time] [2024-11-14 04:32:06,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9614 states. [2024-11-14 04:32:07,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9614 to 9609. [2024-11-14 04:32:07,648 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) [2024-11-14 04:32:07,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9609 states to 9609 states and 14176 transitions. [2024-11-14 04:32:07,707 INFO L78 Accepts]: Start accepts. Automaton has 9609 states and 14176 transitions. Word has length 92 [2024-11-14 04:32:07,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:07,707 INFO L471 AbstractCegarLoop]: Abstraction has 9609 states and 14176 transitions. [2024-11-14 04:32:07,707 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) [2024-11-14 04:32:07,707 INFO L276 IsEmpty]: Start isEmpty. Operand 9609 states and 14176 transitions. [2024-11-14 04:32:07,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 04:32:07,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:32:07,727 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] [2024-11-14 04:32:07,727 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 04:32:07,727 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:32:07,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:32:07,727 INFO L85 PathProgramCache]: Analyzing trace with hash 682141687, now seen corresponding path program 1 times [2024-11-14 04:32:07,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:32:07,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698409820] [2024-11-14 04:32:07,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:32:07,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:32:11,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:32:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 04:32:12,509 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:32:12,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698409820] [2024-11-14 04:32:12,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698409820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:32:12,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:32:12,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:32:12,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529806244] [2024-11-14 04:32:12,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:32:12,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:32:12,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:32:12,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:32:12,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:32:12,512 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) [2024-11-14 04:32:14,594 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 [] [2024-11-14 04:32:16,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:32:19,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:32:20,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:32:23,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:32:25,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:32:27,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:32:29,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:32:31,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:32:38,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-14 04:32:40,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:32:42,986 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 [] [2024-11-14 04:32:47,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:32:47,117 INFO L93 Difference]: Finished difference Result 9609 states and 14176 transitions. [2024-11-14 04:32:47,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:32:47,118 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 [2024-11-14 04:32:47,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:32:47,128 INFO L225 Difference]: With dead ends: 9609 [2024-11-14 04:32:47,128 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:32:47,160 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 [2024-11-14 04:32:47,161 INFO L432 NwaCegarLoop]: 4703 mSDtfsCounter, 1059 mSDsluCounter, 3810 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 0 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 8513 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:32:47,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 8513 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 883 Invalid, 11 Unknown, 0 Unchecked, 34.1s Time] [2024-11-14 04:32:47,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:32:47,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:32:47,162 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) [2024-11-14 04:32:47,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:32:47,168 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2024-11-14 04:32:47,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:32:47,168 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:32:47,168 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) [2024-11-14 04:32:47,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:32:47,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:32:47,171 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-14 04:32:47,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 04:32:47,173 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:32:47,175 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.