./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 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/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_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:14:33,521 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:14:33,593 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:14:33,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:14:33,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:14:33,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:14:33,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:14:33,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:14:33,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:14:33,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:14:33,627 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:14:33,628 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:14:33,628 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:14:33,629 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:14:33,630 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:14:33,630 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:14:33,631 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:14:33,632 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:14:33,632 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:14:33,633 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:14:33,634 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:14:33,635 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:14:33,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:14:33,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:14:33,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:14:33,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:14:33,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:14:33,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:14:33,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:14:33,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:14:33,641 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:14:33,641 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:14:33,642 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:14:33,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:14:33,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:33,648 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:14:33,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:14:33,649 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:14:33,650 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:14:33,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:14:33,651 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:14:33,653 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:14:33,653 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:14:33,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:14:33,654 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51be78885ca7a0fdf86d7aa977405871bdb86d4d67702760ccb1fc038e7f33e2 [2023-11-23 21:14:34,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:14:34,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:14:34,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:14:34,043 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:14:34,043 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:14:34,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2023-11-23 21:14:37,252 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:14:38,002 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:14:38,003 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2023-11-23 21:14:38,072 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/data/140b9719a/31a7f8a08f2345589d8fbda79428fd03/FLAG1513b9ef7 [2023-11-23 21:14:38,091 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/data/140b9719a/31a7f8a08f2345589d8fbda79428fd03 [2023-11-23 21:14:38,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:14:38,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:14:38,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:38,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:14:38,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:14:38,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:38" (1/1) ... [2023-11-23 21:14:38,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625e0254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:38, skipping insertion in model container [2023-11-23 21:14:38,110 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:14:38" (1/1) ... [2023-11-23 21:14:38,377 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:14:41,777 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2023-11-23 21:14:42,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:42,050 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:14:42,163 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] [2023-11-23 21:14:42,165 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] [2023-11-23 21:14:42,165 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] [2023-11-23 21:14:42,166 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] [2023-11-23 21:14:42,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [5253] [2023-11-23 21:14:42,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5256] [2023-11-23 21:14:42,169 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5259] [2023-11-23 21:14:42,169 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [5262] [2023-11-23 21:14:42,170 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] [2023-11-23 21:14:42,171 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] [2023-11-23 21:14:42,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5430] [2023-11-23 21:14:42,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5437] [2023-11-23 21:14:42,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5444] [2023-11-23 21:14:42,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5451] [2023-11-23 21:14:42,396 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] [2023-11-23 21:14:42,397 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] [2023-11-23 21:14:42,397 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] [2023-11-23 21:14:42,398 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] [2023-11-23 21:14:42,400 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] [2023-11-23 21:14:42,401 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] [2023-11-23 21:14:42,401 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] [2023-11-23 21:14:42,402 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] [2023-11-23 21:14:42,407 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] [2023-11-23 21:14:42,408 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] [2023-11-23 21:14:42,409 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] [2023-11-23 21:14:42,409 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] [2023-11-23 21:14:42,410 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] [2023-11-23 21:14:42,411 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] [2023-11-23 21:14:42,411 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] [2023-11-23 21:14:42,411 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] [2023-11-23 21:14:42,412 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] [2023-11-23 21:14:42,417 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] [2023-11-23 21:14:42,417 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] [2023-11-23 21:14:42,418 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] [2023-11-23 21:14:42,418 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] [2023-11-23 21:14:42,422 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] [2023-11-23 21:14:42,422 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] [2023-11-23 21:14:42,423 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] [2023-11-23 21:14:42,423 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] [2023-11-23 21:14:42,428 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] [2023-11-23 21:14:42,428 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] [2023-11-23 21:14:42,429 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] [2023-11-23 21:14:42,429 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] [2023-11-23 21:14:42,465 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] [2023-11-23 21:14:42,465 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] [2023-11-23 21:14:42,466 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] [2023-11-23 21:14:42,466 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] [2023-11-23 21:14:42,468 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] [2023-11-23 21:14:42,469 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] [2023-11-23 21:14:42,469 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] [2023-11-23 21:14:42,470 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] [2023-11-23 21:14:42,747 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i[420085,420098] [2023-11-23 21:14:42,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:14:43,058 WARN L675 CHandler]: The function strcat is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:43,058 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:43,058 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:43,059 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:43,059 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:14:43,067 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:14:43,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43 WrapperNode [2023-11-23 21:14:43,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:14:43,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:43,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:14:43,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:14:43,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:43,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:43,576 INFO L138 Inliner]: procedures = 395, calls = 4232, calls flagged for inlining = 200, calls inlined = 147, statements flattened = 8538 [2023-11-23 21:14:43,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:14:43,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:14:43,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:14:43,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:14:43,589 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:43,589 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:43,647 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:43,648 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:43,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:44,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:44,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:44,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:44,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:14:44,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:14:44,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:14:44,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:14:44,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (1/1) ... [2023-11-23 21:14:44,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:14:44,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:14:44,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:14:44,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93aaeeaf-ae36-4e25-ad27-d5ecd783494f/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:14:44,258 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_wait_until_sent [2023-11-23 21:14:44,258 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_wait_until_sent [2023-11-23 21:14:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-23 21:14:44,259 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:14:44,259 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:14:44,260 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_start [2023-11-23 21:14:44,260 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_start [2023-11-23 21:14:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_txidle [2023-11-23 21:14:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_txidle [2023-11-23 21:14:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2023-11-23 21:14:44,261 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2023-11-23 21:14:44,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:14:44,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:14:44,262 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopback_frame [2023-11-23 21:14:44,262 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopback_frame [2023-11-23 21:14:44,262 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2023-11-23 21:14:44,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2023-11-23 21:14:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_receiver [2023-11-23 21:14:44,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_receiver [2023-11-23 21:14:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_serial_signals [2023-11-23 21:14:44,263 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_serial_signals [2023-11-23 21:14:44,263 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_trace_block [2023-11-23 21:14:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_trace_block [2023-11-23 21:14:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-23 21:14:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-23 21:14:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:14:44,264 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:14:44,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mgsl_ops_disconnect_2 [2023-11-23 21:14:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mgsl_ops_disconnect_2 [2023-11-23 21:14:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2023-11-23 21:14:44,265 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2023-11-23 21:14:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:14:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:14:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:14:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:14:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2023-11-23 21:14:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2023-11-23 21:14:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure load_next_tx_holding_buffer [2023-11-23 21:14:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure load_next_tx_holding_buffer [2023-11-23 21:14:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:14:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:14:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2023-11-23 21:14:44,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2023-11-23 21:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2023-11-23 21:14:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2023-11-23 21:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-23 21:14:44,268 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-23 21:14:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-23 21:14:44,269 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-23 21:14:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-23 21:14:44,269 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-23 21:14:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:14:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:14:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2023-11-23 21:14:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2023-11-23 21:14:44,270 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutDmaReg [2023-11-23 21:14:44,270 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutDmaReg [2023-11-23 21:14:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:14:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:14:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_cancel_transmit [2023-11-23 21:14:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_cancel_transmit [2023-11-23 21:14:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure usc_load_txfifo [2023-11-23 21:14:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_load_txfifo [2023-11-23 21:14:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-23 21:14:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-23 21:14:44,271 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2023-11-23 21:14:44,271 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2023-11-23 21:14:44,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:14:44,272 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-23 21:14:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-23 21:14:44,272 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:14:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:14:44,272 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:14:44,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:14:44,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:14:44,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:14:44,273 INFO L130 BoogieDeclarations]: Found specification of procedure usc_reset [2023-11-23 21:14:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_reset [2023-11-23 21:14:44,273 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_free_frame_memory [2023-11-23 21:14:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_free_frame_memory [2023-11-23 21:14:44,273 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InReg [2023-11-23 21:14:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InReg [2023-11-23 21:14:44,273 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2023-11-23 21:14:44,273 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2023-11-23 21:14:44,273 INFO L130 BoogieDeclarations]: Found specification of procedure usc_enable_loopback [2023-11-23 21:14:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_enable_loopback [2023-11-23 21:14:44,274 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_load_tx_dma_buffer [2023-11-23 21:14:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_load_tx_dma_buffer [2023-11-23 21:14:44,274 INFO L130 BoogieDeclarations]: Found specification of procedure usc_DmaCmd [2023-11-23 21:14:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_DmaCmd [2023-11-23 21:14:44,274 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_buffer [2023-11-23 21:14:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_buffer [2023-11-23 21:14:44,274 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-23 21:14:44,274 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-23 21:14:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2023-11-23 21:14:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2023-11-23 21:14:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure usc_RTCmd [2023-11-23 21:14:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_RTCmd [2023-11-23 21:14:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:14:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure usc_set_sdlc_mode [2023-11-23 21:14:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_set_sdlc_mode [2023-11-23 21:14:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_receiver [2023-11-23 21:14:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_receiver [2023-11-23 21:14:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:14:44,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:14:44,276 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:14:44,276 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:14:44,276 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:14:44,276 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_add_device [2023-11-23 21:14:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_add_device [2023-11-23 21:14:44,278 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_unthrottle [2023-11-23 21:14:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_unthrottle [2023-11-23 21:14:44,278 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_throttle [2023-11-23 21:14:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_throttle [2023-11-23 21:14:44,278 INFO L130 BoogieDeclarations]: Found specification of procedure usc_OutReg [2023-11-23 21:14:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_OutReg [2023-11-23 21:14:44,278 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:14:44,278 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:14:44,278 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2023-11-23 21:14:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2023-11-23 21:14:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_set_termios [2023-11-23 21:14:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_set_termios [2023-11-23 21:14:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-23 21:14:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-23 21:14:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:14:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:14:44,279 INFO L130 BoogieDeclarations]: Found specification of procedure usc_stop_transmitter [2023-11-23 21:14:44,279 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_stop_transmitter [2023-11-23 21:14:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:14:44,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:14:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2023-11-23 21:14:44,280 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2023-11-23 21:14:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:14:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:14:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_flush_chars [2023-11-23 21:14:44,280 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_flush_chars [2023-11-23 21:14:44,280 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 21:14:44,280 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 21:14:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-23 21:14:44,281 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-23 21:14:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_send_xchar [2023-11-23 21:14:44,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_send_xchar [2023-11-23 21:14:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_change_params [2023-11-23 21:14:44,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_change_params [2023-11-23 21:14:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:14:44,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:14:44,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:14:44,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:14:44,282 INFO L130 BoogieDeclarations]: Found specification of procedure usc_get_serial_signals [2023-11-23 21:14:44,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_get_serial_signals [2023-11-23 21:14:44,282 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_reset_rx_dma_buffers [2023-11-23 21:14:44,282 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_reset_rx_dma_buffers [2023-11-23 21:14:44,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:14:44,282 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:14:44,282 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 21:14:44,282 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 21:14:44,283 INFO L130 BoogieDeclarations]: Found specification of procedure usc_start_transmitter [2023-11-23 21:14:44,283 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_start_transmitter [2023-11-23 21:14:44,283 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-23 21:14:44,283 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-23 21:14:44,283 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2023-11-23 21:14:44,283 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2023-11-23 21:14:44,283 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:14:44,283 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:14:44,283 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_paranoia_check [2023-11-23 21:14:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_paranoia_check [2023-11-23 21:14:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure usc_InDmaReg [2023-11-23 21:14:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_InDmaReg [2023-11-23 21:14:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:14:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:14:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_active [2023-11-23 21:14:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_active [2023-11-23 21:14:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_stop [2023-11-23 21:14:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_stop [2023-11-23 21:14:44,285 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-23 21:14:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-23 21:14:44,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:14:44,285 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_remove_one [2023-11-23 21:14:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_remove_one [2023-11-23 21:14:44,285 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 21:14:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 21:14:44,285 INFO L130 BoogieDeclarations]: Found specification of procedure synclink_cleanup [2023-11-23 21:14:44,285 INFO L138 BoogieDeclarations]: Found implementation of procedure synclink_cleanup [2023-11-23 21:14:44,286 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:14:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:14:44,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-11-23 21:14:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-11-23 21:14:44,286 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:14:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:14:44,286 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-23 21:14:44,286 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-23 21:14:44,286 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-23 21:14:44,287 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-23 21:14:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2023-11-23 21:14:44,287 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2023-11-23 21:14:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_write_room [2023-11-23 21:14:44,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_write_room [2023-11-23 21:14:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_break [2023-11-23 21:14:44,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_break [2023-11-23 21:14:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_allocate_device [2023-11-23 21:14:44,287 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_allocate_device [2023-11-23 21:14:44,287 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-11-23 21:14:44,288 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-11-23 21:14:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_install [2023-11-23 21:14:44,288 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_install [2023-11-23 21:14:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2023-11-23 21:14:44,288 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2023-11-23 21:14:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_release_resources [2023-11-23 21:14:44,288 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_release_resources [2023-11-23 21:14:44,288 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 21:14:44,288 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 21:14:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 21:14:44,289 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 21:14:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-23 21:14:44,289 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-23 21:14:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure usc_loopmode_send_done [2023-11-23 21:14:44,289 INFO L138 BoogieDeclarations]: Found implementation of procedure usc_loopmode_send_done [2023-11-23 21:14:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:14:44,289 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:14:44,289 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-23 21:14:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-23 21:14:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:14:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:14:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_ioctl [2023-11-23 21:14:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_ioctl [2023-11-23 21:14:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2023-11-23 21:14:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2023-11-23 21:14:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:14:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:14:44,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:14:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure msgl_get_icount [2023-11-23 21:14:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure msgl_get_icount [2023-11-23 21:14:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_chars_in_buffer [2023-11-23 21:14:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_chars_in_buffer [2023-11-23 21:14:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 21:14:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 21:14:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2023-11-23 21:14:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2023-11-23 21:14:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:14:44,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:14:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_put_char [2023-11-23 21:14:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_put_char [2023-11-23 21:14:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_program_hw [2023-11-23 21:14:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_program_hw [2023-11-23 21:14:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2023-11-23 21:14:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2023-11-23 21:14:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_hangup [2023-11-23 21:14:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_hangup [2023-11-23 21:14:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 21:14:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 21:14:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2023-11-23 21:14:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2023-11-23 21:14:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-23 21:14:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-23 21:14:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:14:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure mgsl_alloc_frame_memory [2023-11-23 21:14:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure mgsl_alloc_frame_memory [2023-11-23 21:14:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-11-23 21:14:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-11-23 21:14:44,293 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-23 21:14:44,293 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-23 21:14:45,453 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:14:45,458 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:15:15,512 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:15:24,237 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:15:24,237 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:15:24,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:24 BoogieIcfgContainer [2023-11-23 21:15:24,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:15:24,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:15:24,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:15:24,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:15:24,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:14:38" (1/3) ... [2023-11-23 21:15:24,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3960b97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:24, skipping insertion in model container [2023-11-23 21:15:24,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:14:43" (2/3) ... [2023-11-23 21:15:24,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3960b97d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:24, skipping insertion in model container [2023-11-23 21:15:24,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:24" (3/3) ... [2023-11-23 21:15:24,255 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclink.ko-main.cil.out.i [2023-11-23 21:15:24,277 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:15:24,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:15:24,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:15:24,426 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@40ab4e90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:15:24,427 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:15:24,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 2786 states, 1668 states have (on average 1.341127098321343) internal successors, (2237), 1732 states have internal predecessors, (2237), 995 states have call successors, (995), 121 states have call predecessors, (995), 121 states have return successors, (995), 984 states have call predecessors, (995), 995 states have call successors, (995) [2023-11-23 21:15:24,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-23 21:15:24,490 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:24,491 INFO L195 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] [2023-11-23 21:15:24,492 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:15:24,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:24,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1675056879, now seen corresponding path program 1 times [2023-11-23 21:15:24,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:24,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476091019] [2023-11-23 21:15:24,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:24,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:15:25,440 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:25,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476091019] [2023-11-23 21:15:25,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476091019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:25,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:25,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:25,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223627034] [2023-11-23 21:15:25,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:25,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:25,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:25,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:25,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:25,498 INFO L87 Difference]: Start difference. First operand has 2786 states, 1668 states have (on average 1.341127098321343) internal successors, (2237), 1732 states have internal predecessors, (2237), 995 states have call successors, (995), 121 states have call predecessors, (995), 121 states have return successors, (995), 984 states have call predecessors, (995), 995 states have call successors, (995) 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)