./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ --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 6e17534f736f8f0727327ccce9421d9a9e89801b3a6ab68095fc479caa060175 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:21:19,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:21:19,987 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:21:19,997 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:21:19,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:21:20,048 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:21:20,051 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:21:20,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:21:20,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:21:20,058 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:21:20,059 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:21:20,060 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:21:20,060 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:21:20,062 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:21:20,063 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:21:20,063 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:21:20,064 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:21:20,064 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:21:20,065 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:21:20,065 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:21:20,066 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:21:20,066 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:21:20,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:21:20,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:21:20,069 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:21:20,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:21:20,070 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:21:20,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:21:20,071 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:21:20,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:21:20,073 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:21:20,089 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:21:20,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:21:20,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:20,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:21:20,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:21:20,090 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:21:20,091 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:21:20,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:21:20,091 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:21:20,092 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:21:20,092 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:21:20,093 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_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e17534f736f8f0727327ccce9421d9a9e89801b3a6ab68095fc479caa060175 [2023-11-19 05:21:20,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:21:20,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:21:20,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:21:20,533 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:21:20,533 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:21:20,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac.i [2023-11-19 05:21:23,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:21:24,627 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:21:24,628 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac.i [2023-11-19 05:21:24,677 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/data/c790da3b1/78213c1e74024bfdb0b9a4142729d781/FLAG341d3d491 [2023-11-19 05:21:24,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/data/c790da3b1/78213c1e74024bfdb0b9a4142729d781 [2023-11-19 05:21:24,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:21:24,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:21:24,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:24,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:21:24,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:21:24,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:24" (1/1) ... [2023-11-19 05:21:24,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d886150 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:24, skipping insertion in model container [2023-11-19 05:21:24,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:21:24" (1/1) ... [2023-11-19 05:21:24,900 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:21:26,659 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_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac.i[202834,202847] [2023-11-19 05:21:26,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:26,723 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:21:26,848 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4703] [2023-11-19 05:21:26,851 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4710] [2023-11-19 05:21:26,851 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4718-4719] [2023-11-19 05:21:26,852 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4727-4728] [2023-11-19 05:21:26,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4750] [2023-11-19 05:21:26,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4753] [2023-11-19 05:21:26,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4756] [2023-11-19 05:21:26,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4759] [2023-11-19 05:21:26,892 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5123] [2023-11-19 05:21:26,896 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5127] [2023-11-19 05:21:26,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5131] [2023-11-19 05:21:26,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5135] [2023-11-19 05:21:26,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___0), "+m" (*__ptr___3): "0" (__x___0): "memory"); [5146] [2023-11-19 05:21:26,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___0), "+m" (*__ptr___4): "0" (__x___0): "memory"); [5150] [2023-11-19 05:21:26,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___0), "+m" (*__ptr___5): "0" (__x___0): "memory"); [5154] [2023-11-19 05:21:26,901 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___0), "+m" (*__ptr___6): "0" (__x___0): "memory"); [5158] [2023-11-19 05:21:26,904 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___1), "+m" (*__ptr___7): "0" (__x___1): "memory"); [5169] [2023-11-19 05:21:26,904 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___1), "+m" (*__ptr___8): "0" (__x___1): "memory"); [5173] [2023-11-19 05:21:26,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___1), "+m" (*__ptr___9): "0" (__x___1): "memory"); [5177] [2023-11-19 05:21:26,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___1), "+m" (*__ptr___10): "0" (__x___1): "memory"); [5181] [2023-11-19 05:21:26,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___2), "+m" (*__ptr___11): "0" (__x___2): "memory"); [5192] [2023-11-19 05:21:26,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___2), "+m" (*__ptr___12): "0" (__x___2): "memory"); [5196] [2023-11-19 05:21:26,907 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___2), "+m" (*__ptr___13): "0" (__x___2): "memory"); [5200] [2023-11-19 05:21:26,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___2), "+m" (*__ptr___14): "0" (__x___2): "memory"); [5204] [2023-11-19 05:21:26,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5254] [2023-11-19 05:21:26,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5258] [2023-11-19 05:21:26,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5262] [2023-11-19 05:21:26,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5266] [2023-11-19 05:21:26,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___0), "+m" (*__ptr___3): "0" (__x___0): "memory"); [5277] [2023-11-19 05:21:26,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___0), "+m" (*__ptr___4): "0" (__x___0): "memory"); [5281] [2023-11-19 05:21:26,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___0), "+m" (*__ptr___5): "0" (__x___0): "memory"); [5285] [2023-11-19 05:21:26,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___0), "+m" (*__ptr___6): "0" (__x___0): "memory"); [5289] [2023-11-19 05:21:26,917 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___1), "+m" (*__ptr___7): "0" (__x___1): "memory"); [5300] [2023-11-19 05:21:26,917 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___1), "+m" (*__ptr___8): "0" (__x___1): "memory"); [5304] [2023-11-19 05:21:26,918 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___1), "+m" (*__ptr___9): "0" (__x___1): "memory"); [5308] [2023-11-19 05:21:26,918 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___1), "+m" (*__ptr___10): "0" (__x___1): "memory"); [5312] [2023-11-19 05:21:26,919 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___2), "+m" (*__ptr___11): "0" (__x___2): "memory"); [5323] [2023-11-19 05:21:26,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___2), "+m" (*__ptr___12): "0" (__x___2): "memory"); [5327] [2023-11-19 05:21:26,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___2), "+m" (*__ptr___13): "0" (__x___2): "memory"); [5331] [2023-11-19 05:21:26,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___2), "+m" (*__ptr___14): "0" (__x___2): "memory"); [5335] [2023-11-19 05:21:26,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5409] [2023-11-19 05:21:26,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5413] [2023-11-19 05:21:26,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5417] [2023-11-19 05:21:26,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5421] [2023-11-19 05:21:26,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___0), "+m" (*__ptr___3): "0" (__x___0): "memory"); [5432] [2023-11-19 05:21:26,934 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___0), "+m" (*__ptr___4): "0" (__x___0): "memory"); [5436] [2023-11-19 05:21:26,935 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___0), "+m" (*__ptr___5): "0" (__x___0): "memory"); [5440] [2023-11-19 05:21:26,935 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___0), "+m" (*__ptr___6): "0" (__x___0): "memory"); [5444] [2023-11-19 05:21:26,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___1), "+m" (*__ptr___7): "0" (__x___1): "memory"); [5455] [2023-11-19 05:21:26,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___1), "+m" (*__ptr___8): "0" (__x___1): "memory"); [5459] [2023-11-19 05:21:26,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___1), "+m" (*__ptr___9): "0" (__x___1): "memory"); [5463] [2023-11-19 05:21:26,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___1), "+m" (*__ptr___10): "0" (__x___1): "memory"); [5467] [2023-11-19 05:21:27,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6408] [2023-11-19 05:21:27,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6411] [2023-11-19 05:21:27,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6414] [2023-11-19 05:21:27,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6417] [2023-11-19 05:21:27,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6420] [2023-11-19 05:21:27,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6433] [2023-11-19 05:21:27,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6436] [2023-11-19 05:21:27,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6439] [2023-11-19 05:21:27,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6442] [2023-11-19 05:21:27,150 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6445] [2023-11-19 05:21:27,152 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [6467] [2023-11-19 05:21:27,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [6470] [2023-11-19 05:21:27,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [6473] [2023-11-19 05:21:27,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [6476] [2023-11-19 05:21:27,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [6479] [2023-11-19 05:21:27,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6512-6513] [2023-11-19 05:21:27,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6516-6517] [2023-11-19 05:21:27,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6520-6521] [2023-11-19 05:21:27,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6524-6525] [2023-11-19 05:21:27,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6528-6529] [2023-11-19 05:21:27,169 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu___1), "=d" (__val_gu___1): "0" (p)); [6542] [2023-11-19 05:21:27,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu___1), "=d" (__val_gu___1): "0" (p)); [6545] [2023-11-19 05:21:27,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu___1), "=d" (__val_gu___1): "0" (p)); [6548] [2023-11-19 05:21:27,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu___1), "=d" (__val_gu___1): "0" (p)); [6551] [2023-11-19 05:21:27,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu___1), "=d" (__val_gu___1): "0" (p)); [6554] [2023-11-19 05:21:27,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6587-6588] [2023-11-19 05:21:27,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6591-6592] [2023-11-19 05:21:27,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6595-6596] [2023-11-19 05:21:27,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6599-6600] [2023-11-19 05:21:27,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6603-6604] [2023-11-19 05:21:27,219 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_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/sv-benchmarks/c/ldv-commit-tester/m0_drivers-net-slip-ko--108_1a--1b0b0ac.i[202834,202847] [2023-11-19 05:21:27,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:21:27,369 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:21:27,370 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:21:27,370 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:21:27,380 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:21:27,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27 WrapperNode [2023-11-19 05:21:27,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:21:27,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:27,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:21:27,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:21:27,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,703 INFO L138 Inliner]: procedures = 157, calls = 827, calls flagged for inlining = 80, calls inlined = 79, statements flattened = 2929 [2023-11-19 05:21:27,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:21:27,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:21:27,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:21:27,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:21:27,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,763 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,764 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:27,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:28,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:28,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:21:28,044 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:21:28,045 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:21:28,045 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:21:28,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (1/1) ... [2023-11-19 05:21:28,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:21:28,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:21:28,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:21:28,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e4bb171-8a80-4c9b-bea2-c1f8f09d6db6/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:21:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:21:28,140 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-19 05:21:28,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:21:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:21:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:21:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 05:21:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 05:21:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 05:21:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 05:21:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2023-11-19 05:21:28,143 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2023-11-19 05:21:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:21:28,143 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:21:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 05:21:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 05:21:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:21:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:21:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:21:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:21:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive_int [2023-11-19 05:21:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive_int [2023-11-19 05:21:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-19 05:21:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-19 05:21:28,145 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:21:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:21:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2023-11-19 05:21:28,147 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2023-11-19 05:21:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:21:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-19 05:21:28,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-19 05:21:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-19 05:21:28,149 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-19 05:21:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 05:21:28,149 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 05:21:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:21:28,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:21:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 05:21:28,150 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 05:21:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-19 05:21:28,151 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-19 05:21:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:21:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2023-11-19 05:21:28,151 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2023-11-19 05:21:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2023-11-19 05:21:28,151 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2023-11-19 05:21:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:21:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 05:21:28,152 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 05:21:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2023-11-19 05:21:28,152 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2023-11-19 05:21:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:21:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:21:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:21:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 05:21:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-19 05:21:28,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-19 05:21:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:21:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-19 05:21:28,155 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-19 05:21:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 05:21:28,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 05:21:28,156 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 05:21:28,156 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 05:21:28,157 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2023-11-19 05:21:28,157 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2023-11-19 05:21:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2023-11-19 05:21:28,161 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2023-11-19 05:21:28,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:21:28,161 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-19 05:21:28,162 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-19 05:21:28,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:21:28,163 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-19 05:21:28,164 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-19 05:21:28,164 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2023-11-19 05:21:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2023-11-19 05:21:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 05:21:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 05:21:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 05:21:28,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 05:21:28,170 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 05:21:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 05:21:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 05:21:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 05:21:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 05:21:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 05:21:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 05:21:28,171 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 05:21:28,171 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 05:21:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 05:21:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 05:21:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 05:21:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:21:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-19 05:21:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-19 05:21:28,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-19 05:21:28,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-19 05:21:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-11-19 05:21:28,173 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-11-19 05:21:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 05:21:28,173 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 05:21:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:21:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:21:28,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:21:28,173 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2023-11-19 05:21:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2023-11-19 05:21:28,174 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-11-19 05:21:28,174 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-11-19 05:21:28,784 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:21:28,788 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:21:32,821 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:21:34,394 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:21:34,394 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:21:34,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:34 BoogieIcfgContainer [2023-11-19 05:21:34,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:21:34,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:21:34,411 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:21:34,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:21:34,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:21:24" (1/3) ... [2023-11-19 05:21:34,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d0d668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:34, skipping insertion in model container [2023-11-19 05:21:34,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:21:27" (2/3) ... [2023-11-19 05:21:34,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d0d668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:21:34, skipping insertion in model container [2023-11-19 05:21:34,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:21:34" (3/3) ... [2023-11-19 05:21:34,419 INFO L112 eAbstractionObserver]: Analyzing ICFG m0_drivers-net-slip-ko--108_1a--1b0b0ac.i [2023-11-19 05:21:34,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:21:34,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:21:34,523 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:21:34,531 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;@67215959, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:21:34,532 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:21:34,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 704 states, 435 states have (on average 1.3816091954022989) internal successors, (601), 462 states have internal predecessors, (601), 223 states have call successors, (223), 44 states have call predecessors, (223), 44 states have return successors, (223), 221 states have call predecessors, (223), 223 states have call successors, (223) [2023-11-19 05:21:34,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 05:21:34,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:34,562 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-19 05:21:34,562 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:34,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:34,569 INFO L85 PathProgramCache]: Analyzing trace with hash -977459633, now seen corresponding path program 1 times [2023-11-19 05:21:34,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:34,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82895438] [2023-11-19 05:21:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:34,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:35,675 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 05:21:35,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:35,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82895438] [2023-11-19 05:21:35,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82895438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:35,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:35,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:21:35,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485532614] [2023-11-19 05:21:35,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:35,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:21:35,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:35,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:21:35,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:21:35,758 INFO L87 Difference]: Start difference. First operand has 704 states, 435 states have (on average 1.3816091954022989) internal successors, (601), 462 states have internal predecessors, (601), 223 states have call successors, (223), 44 states have call predecessors, (223), 44 states have return successors, (223), 221 states have call predecessors, (223), 223 states have call successors, (223) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:21:38,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:21:40,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:21:42,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:21:44,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:21:44,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:44,678 INFO L93 Difference]: Finished difference Result 1721 states and 2609 transitions. [2023-11-19 05:21:44,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:21:44,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 59 [2023-11-19 05:21:44,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:44,725 INFO L225 Difference]: With dead ends: 1721 [2023-11-19 05:21:44,725 INFO L226 Difference]: Without dead ends: 973 [2023-11-19 05:21:44,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:21:44,742 INFO L413 NwaCegarLoop]: 1423 mSDtfsCounter, 305 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:44,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 3884 Invalid, 459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 456 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2023-11-19 05:21:44,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2023-11-19 05:21:44,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 672. [2023-11-19 05:21:44,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 414 states have (on average 1.3599033816425121) internal successors, (563), 438 states have internal predecessors, (563), 213 states have call successors, (213), 44 states have call predecessors, (213), 44 states have return successors, (213), 211 states have call predecessors, (213), 213 states have call successors, (213) [2023-11-19 05:21:44,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 989 transitions. [2023-11-19 05:21:44,930 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 989 transitions. Word has length 59 [2023-11-19 05:21:44,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:44,931 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 989 transitions. [2023-11-19 05:21:44,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-19 05:21:44,932 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 989 transitions. [2023-11-19 05:21:44,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 05:21:44,941 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:44,941 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-19 05:21:44,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:21:44,942 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:44,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:44,943 INFO L85 PathProgramCache]: Analyzing trace with hash -181637875, now seen corresponding path program 1 times [2023-11-19 05:21:44,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:44,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423400355] [2023-11-19 05:21:44,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:44,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:45,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 05:21:45,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:45,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423400355] [2023-11-19 05:21:45,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423400355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:45,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:45,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:21:45,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479743631] [2023-11-19 05:21:45,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:45,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:21:45,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:45,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:21:45,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:21:45,462 INFO L87 Difference]: Start difference. First operand 672 states and 989 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-19 05:21:47,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:21:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:21:49,421 INFO L93 Difference]: Finished difference Result 1326 states and 1952 transitions. [2023-11-19 05:21:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:21:49,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 67 [2023-11-19 05:21:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:21:49,432 INFO L225 Difference]: With dead ends: 1326 [2023-11-19 05:21:49,432 INFO L226 Difference]: Without dead ends: 677 [2023-11-19 05:21:49,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:21:49,438 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 961 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1303 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:21:49,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 1303 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-19 05:21:49,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2023-11-19 05:21:49,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 673. [2023-11-19 05:21:49,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 415 states have (on average 1.3590361445783132) internal successors, (564), 439 states have internal predecessors, (564), 213 states have call successors, (213), 44 states have call predecessors, (213), 44 states have return successors, (213), 211 states have call predecessors, (213), 213 states have call successors, (213) [2023-11-19 05:21:49,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 990 transitions. [2023-11-19 05:21:49,518 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 990 transitions. Word has length 67 [2023-11-19 05:21:49,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:21:49,519 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 990 transitions. [2023-11-19 05:21:49,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-19 05:21:49,520 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 990 transitions. [2023-11-19 05:21:49,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 05:21:49,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:21:49,530 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-19 05:21:49,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:21:49,537 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:21:49,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:21:49,538 INFO L85 PathProgramCache]: Analyzing trace with hash -403051062, now seen corresponding path program 1 times [2023-11-19 05:21:49,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:21:49,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649448106] [2023-11-19 05:21:49,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:21:49,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:21:49,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:21:50,014 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 05:21:50,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:21:50,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649448106] [2023-11-19 05:21:50,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649448106] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:21:50,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:21:50,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 05:21:50,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102026664] [2023-11-19 05:21:50,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:21:50,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:21:50,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:21:50,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:21:50,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:21:50,021 INFO L87 Difference]: Start difference. First operand 673 states and 990 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 05:21:51,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:21:53,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:21:57,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:21:58,320 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:00,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:00,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:00,999 INFO L93 Difference]: Finished difference Result 991 states and 1504 transitions. [2023-11-19 05:22:00,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:22:01,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2023-11-19 05:22:01,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:01,010 INFO L225 Difference]: With dead ends: 991 [2023-11-19 05:22:01,011 INFO L226 Difference]: Without dead ends: 989 [2023-11-19 05:22:01,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:22:01,013 INFO L413 NwaCegarLoop]: 1323 mSDtfsCounter, 326 mSDsluCounter, 3549 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 4872 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:01,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 4872 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 593 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2023-11-19 05:22:01,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2023-11-19 05:22:01,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 675. [2023-11-19 05:22:01,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 416 states have (on average 1.3581730769230769) internal successors, (565), 439 states have internal predecessors, (565), 214 states have call successors, (214), 44 states have call predecessors, (214), 44 states have return successors, (214), 212 states have call predecessors, (214), 214 states have call successors, (214) [2023-11-19 05:22:01,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 993 transitions. [2023-11-19 05:22:01,087 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 993 transitions. Word has length 68 [2023-11-19 05:22:01,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:01,088 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 993 transitions. [2023-11-19 05:22:01,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-19 05:22:01,088 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 993 transitions. [2023-11-19 05:22:01,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 05:22:01,094 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:01,094 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-11-19 05:22:01,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:22:01,095 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:01,095 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:01,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1386166182, now seen corresponding path program 1 times [2023-11-19 05:22:01,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:01,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876539008] [2023-11-19 05:22:01,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:01,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:01,381 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 05:22:01,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:01,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876539008] [2023-11-19 05:22:01,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876539008] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:01,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:01,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:22:01,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567911505] [2023-11-19 05:22:01,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:01,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:22:01,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:01,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:22:01,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:22:01,390 INFO L87 Difference]: Start difference. First operand 675 states and 993 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-19 05:22:05,518 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 [] [2023-11-19 05:22:06,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:06,277 INFO L93 Difference]: Finished difference Result 1961 states and 2882 transitions. [2023-11-19 05:22:06,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:22:06,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 92 [2023-11-19 05:22:06,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:06,293 INFO L225 Difference]: With dead ends: 1961 [2023-11-19 05:22:06,293 INFO L226 Difference]: Without dead ends: 1309 [2023-11-19 05:22:06,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:22:06,298 INFO L413 NwaCegarLoop]: 1016 mSDtfsCounter, 935 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:06,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1839 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 279 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2023-11-19 05:22:06,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2023-11-19 05:22:06,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1307. [2023-11-19 05:22:06,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 806 states have (on average 1.3585607940446651) internal successors, (1095), 851 states have internal predecessors, (1095), 413 states have call successors, (413), 87 states have call predecessors, (413), 87 states have return successors, (413), 409 states have call predecessors, (413), 413 states have call successors, (413) [2023-11-19 05:22:06,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 1921 transitions. [2023-11-19 05:22:06,484 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 1921 transitions. Word has length 92 [2023-11-19 05:22:06,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:06,485 INFO L495 AbstractCegarLoop]: Abstraction has 1307 states and 1921 transitions. [2023-11-19 05:22:06,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-19 05:22:06,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 1921 transitions. [2023-11-19 05:22:06,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 05:22:06,494 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:06,494 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2023-11-19 05:22:06,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:22:06,494 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:06,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:06,495 INFO L85 PathProgramCache]: Analyzing trace with hash -8347020, now seen corresponding path program 1 times [2023-11-19 05:22:06,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:06,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327601300] [2023-11-19 05:22:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:06,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:06,745 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 05:22:06,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:06,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327601300] [2023-11-19 05:22:06,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327601300] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:06,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:06,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:22:06,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010378856] [2023-11-19 05:22:06,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:06,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:22:06,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:06,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:22:06,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:22:06,749 INFO L87 Difference]: Start difference. First operand 1307 states and 1921 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 05:22:08,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:22:10,346 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 [] [2023-11-19 05:22:11,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:22:11,328 INFO L93 Difference]: Finished difference Result 1973 states and 2890 transitions. [2023-11-19 05:22:11,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:22:11,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 94 [2023-11-19 05:22:11,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:22:11,339 INFO L225 Difference]: With dead ends: 1973 [2023-11-19 05:22:11,339 INFO L226 Difference]: Without dead ends: 687 [2023-11-19 05:22:11,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:22:11,345 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 1 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2599 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:22:11,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2599 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2023-11-19 05:22:11,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-11-19 05:22:11,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 687. [2023-11-19 05:22:11,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 422 states have (on average 1.3483412322274881) internal successors, (569), 445 states have internal predecessors, (569), 215 states have call successors, (215), 49 states have call predecessors, (215), 49 states have return successors, (215), 213 states have call predecessors, (215), 215 states have call successors, (215) [2023-11-19 05:22:11,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 999 transitions. [2023-11-19 05:22:11,453 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 999 transitions. Word has length 94 [2023-11-19 05:22:11,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:22:11,454 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 999 transitions. [2023-11-19 05:22:11,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-19 05:22:11,454 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 999 transitions. [2023-11-19 05:22:11,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 05:22:11,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:22:11,460 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1] [2023-11-19 05:22:11,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:22:11,460 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:22:11,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:22:11,461 INFO L85 PathProgramCache]: Analyzing trace with hash -939574688, now seen corresponding path program 1 times [2023-11-19 05:22:11,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:22:11,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217274576] [2023-11-19 05:22:11,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:22:11,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:22:11,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:22:11,898 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-19 05:22:11,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:22:11,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217274576] [2023-11-19 05:22:11,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217274576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:22:11,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:22:11,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:22:11,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328025094] [2023-11-19 05:22:11,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:22:11,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:22:11,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:22:11,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:22:11,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:22:11,907 INFO L87 Difference]: Start difference. First operand 687 states and 999 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-19 05:22:14,288 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 [] [2023-11-19 05:22:16,294 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 []