./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2e2f48ab037d80d8f09964fc14a08b090a2ac957ba1c26211e43b888a860dc78 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 18:38:46,917 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 18:38:46,995 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2025-01-09 18:38:47,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 18:38:47,003 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 18:38:47,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 18:38:47,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 18:38:47,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 18:38:47,036 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 18:38:47,036 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 18:38:47,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 18:38:47,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 18:38:47,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 18:38:47,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 18:38:47,037 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 18:38:47,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 18:38:47,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 18:38:47,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 18:38:47,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 18:38:47,039 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 18:38:47,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 18:38:47,039 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 18:38:47,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 18:38:47,039 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 18:38:47,039 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 18:38:47,039 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 18:38:47,039 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 18:38:47,039 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:38:47,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:38:47,040 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 18:38:47,040 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 18:38:47,041 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 18:38:47,041 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 2e2f48ab037d80d8f09964fc14a08b090a2ac957ba1c26211e43b888a860dc78 [2025-01-09 18:38:47,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 18:38:47,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 18:38:47,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 18:38:47,372 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 18:38:47,372 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 18:38:47,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2025-01-09 18:38:48,738 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cc082a796/c92bdc8f0b3a45cd9ed28e57adc0e605/FLAG46e0fd2ed [2025-01-09 18:38:49,252 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 18:38:49,253 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2025-01-09 18:38:49,295 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cc082a796/c92bdc8f0b3a45cd9ed28e57adc0e605/FLAG46e0fd2ed [2025-01-09 18:38:49,311 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cc082a796/c92bdc8f0b3a45cd9ed28e57adc0e605 [2025-01-09 18:38:49,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 18:38:49,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 18:38:49,316 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 18:38:49,316 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 18:38:49,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 18:38:49,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:38:49" (1/1) ... [2025-01-09 18:38:49,320 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3baa82a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:49, skipping insertion in model container [2025-01-09 18:38:49,321 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:38:49" (1/1) ... [2025-01-09 18:38:49,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 18:38:50,874 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i[216887,216900] [2025-01-09 18:38:50,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 18:38:50,937 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 18:38:51,077 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"); [4690] [2025-01-09 18:38:51,082 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)); [4697] [2025-01-09 18:38:51,082 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"); [4705-4706] [2025-01-09 18:38:51,083 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"); [4714-4715] [2025-01-09 18:38:51,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4843] [2025-01-09 18:38:51,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4846] [2025-01-09 18:38:51,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4849] [2025-01-09 18:38:51,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4852] [2025-01-09 18:38:51,116 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5234] [2025-01-09 18:38:51,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5238] [2025-01-09 18:38:51,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5242] [2025-01-09 18:38:51,117 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5246] [2025-01-09 18:38:51,118 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"); [5257] [2025-01-09 18:38:51,118 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"); [5261] [2025-01-09 18:38:51,118 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"); [5265] [2025-01-09 18:38:51,118 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"); [5269] [2025-01-09 18:38:51,120 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"); [5280] [2025-01-09 18:38:51,121 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"); [5284] [2025-01-09 18:38:51,121 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"); [5288] [2025-01-09 18:38:51,121 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"); [5292] [2025-01-09 18:38:51,122 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"); [5303] [2025-01-09 18:38:51,122 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"); [5307] [2025-01-09 18:38:51,123 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"); [5311] [2025-01-09 18:38:51,123 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"); [5315] [2025-01-09 18:38:51,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5365] [2025-01-09 18:38:51,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5369] [2025-01-09 18:38:51,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5373] [2025-01-09 18:38:51,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5377] [2025-01-09 18:38:51,127 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"); [5388] [2025-01-09 18:38:51,128 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"); [5392] [2025-01-09 18:38:51,128 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"); [5396] [2025-01-09 18:38:51,128 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"); [5400] [2025-01-09 18:38:51,129 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"); [5411] [2025-01-09 18:38:51,129 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"); [5415] [2025-01-09 18:38:51,129 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"); [5419] [2025-01-09 18:38:51,129 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"); [5423] [2025-01-09 18:38:51,130 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"); [5434] [2025-01-09 18:38:51,130 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"); [5438] [2025-01-09 18:38:51,130 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"); [5442] [2025-01-09 18:38:51,130 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"); [5446] [2025-01-09 18:38:51,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5520] [2025-01-09 18:38:51,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5524] [2025-01-09 18:38:51,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5528] [2025-01-09 18:38:51,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5532] [2025-01-09 18:38:51,138 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"); [5543] [2025-01-09 18:38:51,139 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"); [5547] [2025-01-09 18:38:51,139 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"); [5551] [2025-01-09 18:38:51,140 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"); [5555] [2025-01-09 18:38:51,140 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"); [5566] [2025-01-09 18:38:51,140 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"); [5570] [2025-01-09 18:38:51,141 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"); [5574] [2025-01-09 18:38:51,141 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"); [5578] [2025-01-09 18:38:51,215 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"); [6518] [2025-01-09 18:38:51,216 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"); [6521] [2025-01-09 18:38:51,216 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"); [6524] [2025-01-09 18:38:51,216 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"); [6527] [2025-01-09 18:38:51,217 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"); [6530] [2025-01-09 18:38:51,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6543] [2025-01-09 18:38:51,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6546] [2025-01-09 18:38:51,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6549] [2025-01-09 18:38:51,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6552] [2025-01-09 18:38:51,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6555] [2025-01-09 18:38:51,221 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)); [6577] [2025-01-09 18:38:51,221 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)); [6580] [2025-01-09 18:38:51,221 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)); [6583] [2025-01-09 18:38:51,221 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)); [6586] [2025-01-09 18:38:51,221 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)); [6589] [2025-01-09 18:38:51,222 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"); [6622-6623] [2025-01-09 18:38:51,223 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"); [6626-6627] [2025-01-09 18:38:51,223 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"); [6630-6631] [2025-01-09 18:38:51,223 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"); [6634-6635] [2025-01-09 18:38:51,224 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"); [6638-6639] [2025-01-09 18:38:51,225 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)); [6652] [2025-01-09 18:38:51,225 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)); [6655] [2025-01-09 18:38:51,225 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)); [6658] [2025-01-09 18:38:51,225 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)); [6661] [2025-01-09 18:38:51,226 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)); [6664] [2025-01-09 18:38:51,227 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"); [6697-6698] [2025-01-09 18:38:51,228 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"); [6701-6702] [2025-01-09 18:38:51,228 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"); [6705-6706] [2025-01-09 18:38:51,228 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"); [6709-6710] [2025-01-09 18:38:51,228 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"); [6713-6714] [2025-01-09 18:38:51,264 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i[216887,216900] [2025-01-09 18:38:51,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 18:38:51,407 INFO L204 MainTranslator]: Completed translation [2025-01-09 18:38:51,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51 WrapperNode [2025-01-09 18:38:51,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 18:38:51,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 18:38:51,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 18:38:51,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 18:38:51,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:51,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:51,628 INFO L138 Inliner]: procedures = 186, calls = 884, calls flagged for inlining = 94, calls inlined = 92, statements flattened = 3448 [2025-01-09 18:38:51,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 18:38:51,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 18:38:51,629 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 18:38:51,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 18:38:51,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:51,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:51,678 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:52,125 INFO L175 MemorySlicer]: Split 434 memory accesses to 10 slices as follows [2, 3, 16, 4, 36, 22, 1, 1, 2, 347]. 80 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 5]. The 182 writes are split as follows [0, 0, 2, 1, 36, 22, 1, 0, 0, 120]. [2025-01-09 18:38:52,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:52,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:52,233 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:52,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:52,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:52,298 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:52,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:52,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 18:38:52,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 18:38:52,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 18:38:52,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 18:38:52,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (1/1) ... [2025-01-09 18:38:52,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 18:38:52,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 18:38:52,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 18:38:52,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 18:38:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2025-01-09 18:38:52,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2025-01-09 18:38:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2025-01-09 18:38:52,419 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2025-01-09 18:38:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-01-09 18:38:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-01-09 18:38:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-01-09 18:38:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-01-09 18:38:52,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-01-09 18:38:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2025-01-09 18:38:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2025-01-09 18:38:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2025-01-09 18:38:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2025-01-09 18:38:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2025-01-09 18:38:52,420 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2025-01-09 18:38:52,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __xchg_wrong_size [2025-01-09 18:38:52,421 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2025-01-09 18:38:52,421 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2025-01-09 18:38:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2025-01-09 18:38:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2025-01-09 18:38:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2025-01-09 18:38:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2025-01-09 18:38:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2025-01-09 18:38:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2025-01-09 18:38:52,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2025-01-09 18:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2025-01-09 18:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2025-01-09 18:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2025-01-09 18:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2025-01-09 18:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2025-01-09 18:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2025-01-09 18:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2025-01-09 18:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2025-01-09 18:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2025-01-09 18:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2025-01-09 18:38:52,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2025-01-09 18:38:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2025-01-09 18:38:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2025-01-09 18:38:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2025-01-09 18:38:52,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2025-01-09 18:38:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 18:38:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 18:38:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 18:38:52,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 18:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 18:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 18:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 18:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 18:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 18:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 18:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2025-01-09 18:38:52,425 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2025-01-09 18:38:52,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2025-01-09 18:38:52,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2025-01-09 18:38:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2025-01-09 18:38:52,426 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2025-01-09 18:38:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2025-01-09 18:38:52,426 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2025-01-09 18:38:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2025-01-09 18:38:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2025-01-09 18:38:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2025-01-09 18:38:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2025-01-09 18:38:52,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2025-01-09 18:38:52,428 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2025-01-09 18:38:52,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2025-01-09 18:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2025-01-09 18:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2025-01-09 18:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 18:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2025-01-09 18:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2025-01-09 18:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2025-01-09 18:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2025-01-09 18:38:52,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2025-01-09 18:38:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2025-01-09 18:38:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2025-01-09 18:38:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2025-01-09 18:38:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2025-01-09 18:38:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 18:38:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2025-01-09 18:38:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2025-01-09 18:38:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2025-01-09 18:38:52,433 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2025-01-09 18:38:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2025-01-09 18:38:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2025-01-09 18:38:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2025-01-09 18:38:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2025-01-09 18:38:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-01-09 18:38:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2025-01-09 18:38:52,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2025-01-09 18:38:52,435 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2025-01-09 18:38:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2025-01-09 18:38:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2025-01-09 18:38:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2025-01-09 18:38:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 18:38:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2025-01-09 18:38:52,436 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2025-01-09 18:38:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2025-01-09 18:38:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2025-01-09 18:38:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2025-01-09 18:38:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2025-01-09 18:38:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2025-01-09 18:38:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2025-01-09 18:38:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2025-01-09 18:38:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2025-01-09 18:38:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2025-01-09 18:38:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2025-01-09 18:38:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2025-01-09 18:38:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2025-01-09 18:38:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2025-01-09 18:38:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2025-01-09 18:38:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 18:38:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 18:38:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2025-01-09 18:38:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2025-01-09 18:38:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2025-01-09 18:38:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2025-01-09 18:38:53,073 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 18:38:53,077 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 18:38:53,210 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2025-01-09 18:39:01,299 INFO L? ?]: Removed 1548 outVars from TransFormulas that were not future-live. [2025-01-09 18:39:01,299 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 18:39:01,353 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 18:39:01,354 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 18:39:01,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:39:01 BoogieIcfgContainer [2025-01-09 18:39:01,356 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 18:39:01,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 18:39:01,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 18:39:01,362 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 18:39:01,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 06:38:49" (1/3) ... [2025-01-09 18:39:01,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f3558a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:39:01, skipping insertion in model container [2025-01-09 18:39:01,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:38:51" (2/3) ... [2025-01-09 18:39:01,363 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78f3558a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:39:01, skipping insertion in model container [2025-01-09 18:39:01,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:39:01" (3/3) ... [2025-01-09 18:39:01,364 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2025-01-09 18:39:01,381 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 18:39:01,386 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i that has 65 procedures, 1247 locations, 1 initial locations, 22 loop locations, and 1 error locations. [2025-01-09 18:39:01,481 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 18:39:01,493 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, 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;@4565411a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 18:39:01,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 18:39:01,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 1201 states, 882 states have (on average 1.4195011337868482) internal successors, (1252), 925 states have internal predecessors, (1252), 263 states have call successors, (263), 55 states have call predecessors, (263), 54 states have return successors, (258), 256 states have call predecessors, (258), 258 states have call successors, (258) [2025-01-09 18:39:01,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-01-09 18:39:01,531 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:01,531 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2025-01-09 18:39:01,532 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:01,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:01,538 INFO L85 PathProgramCache]: Analyzing trace with hash 880051057, now seen corresponding path program 1 times [2025-01-09 18:39:01,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:01,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865114701] [2025-01-09 18:39:01,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:01,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:02,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-01-09 18:39:02,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-01-09 18:39:02,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:02,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:02,562 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2025-01-09 18:39:02,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:02,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865114701] [2025-01-09 18:39:02,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865114701] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 18:39:02,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356302038] [2025-01-09 18:39:02,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:02,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 18:39:02,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 18:39:02,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 18:39:02,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 18:39:03,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-01-09 18:39:03,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-01-09 18:39:03,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:03,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:03,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 1530 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 18:39:03,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 18:39:03,639 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2025-01-09 18:39:03,641 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 18:39:03,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356302038] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:03,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 18:39:03,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-01-09 18:39:03,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221985146] [2025-01-09 18:39:03,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:03,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 18:39:03,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:03,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 18:39:03,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 18:39:03,673 INFO L87 Difference]: Start difference. First operand has 1201 states, 882 states have (on average 1.4195011337868482) internal successors, (1252), 925 states have internal predecessors, (1252), 263 states have call successors, (263), 55 states have call predecessors, (263), 54 states have return successors, (258), 256 states have call predecessors, (258), 258 states have call successors, (258) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 18:39:03,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:03,847 INFO L93 Difference]: Finished difference Result 2398 states and 3567 transitions. [2025-01-09 18:39:03,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 18:39:03,849 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 161 [2025-01-09 18:39:03,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:03,872 INFO L225 Difference]: With dead ends: 2398 [2025-01-09 18:39:03,872 INFO L226 Difference]: Without dead ends: 1155 [2025-01-09 18:39:03,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 18:39:03,888 INFO L435 NwaCegarLoop]: 1769 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:03,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 18:39:03,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2025-01-09 18:39:04,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2025-01-09 18:39:04,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 851 states have (on average 1.4112808460634547) internal successors, (1201), 886 states have internal predecessors, (1201), 249 states have call successors, (249), 54 states have call predecessors, (249), 54 states have return successors, (249), 247 states have call predecessors, (249), 249 states have call successors, (249) [2025-01-09 18:39:04,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1699 transitions. [2025-01-09 18:39:04,031 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1699 transitions. Word has length 161 [2025-01-09 18:39:04,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:04,031 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1699 transitions. [2025-01-09 18:39:04,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 18:39:04,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1699 transitions. [2025-01-09 18:39:04,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-01-09 18:39:04,041 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:04,042 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2025-01-09 18:39:04,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 18:39:04,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 18:39:04,246 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:04,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:04,247 INFO L85 PathProgramCache]: Analyzing trace with hash -738746457, now seen corresponding path program 1 times [2025-01-09 18:39:04,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:04,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071236394] [2025-01-09 18:39:04,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:04,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:04,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-01-09 18:39:04,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-01-09 18:39:04,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:04,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2025-01-09 18:39:05,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:05,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071236394] [2025-01-09 18:39:05,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071236394] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:05,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:05,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:39:05,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462552129] [2025-01-09 18:39:05,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:05,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:39:05,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:05,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:39:05,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:05,044 INFO L87 Difference]: Start difference. First operand 1155 states and 1699 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 18:39:05,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:05,319 INFO L93 Difference]: Finished difference Result 2886 states and 4211 transitions. [2025-01-09 18:39:05,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:39:05,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 161 [2025-01-09 18:39:05,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:05,344 INFO L225 Difference]: With dead ends: 2886 [2025-01-09 18:39:05,344 INFO L226 Difference]: Without dead ends: 1767 [2025-01-09 18:39:05,351 INFO L434 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 [2025-01-09 18:39:05,352 INFO L435 NwaCegarLoop]: 1718 mSDtfsCounter, 904 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 3334 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:05,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 3334 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 18:39:05,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2025-01-09 18:39:05,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2025-01-09 18:39:05,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1287 states have (on average 1.393162393162393) internal successors, (1793), 1338 states have internal predecessors, (1793), 384 states have call successors, (384), 95 states have call predecessors, (384), 95 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2025-01-09 18:39:05,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2561 transitions. [2025-01-09 18:39:05,490 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2561 transitions. Word has length 161 [2025-01-09 18:39:05,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:05,491 INFO L471 AbstractCegarLoop]: Abstraction has 1767 states and 2561 transitions. [2025-01-09 18:39:05,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 18:39:05,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2561 transitions. [2025-01-09 18:39:05,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2025-01-09 18:39:05,509 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:05,510 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:05,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 18:39:05,510 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:05,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:05,511 INFO L85 PathProgramCache]: Analyzing trace with hash 400080584, now seen corresponding path program 1 times [2025-01-09 18:39:05,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:05,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105053048] [2025-01-09 18:39:05,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:05,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:05,912 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 240 statements into 1 equivalence classes. [2025-01-09 18:39:05,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 240 of 240 statements. [2025-01-09 18:39:05,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:05,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:06,331 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2025-01-09 18:39:06,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:06,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105053048] [2025-01-09 18:39:06,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105053048] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:06,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:06,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:39:06,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301920852] [2025-01-09 18:39:06,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:06,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:39:06,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:06,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:39:06,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:06,335 INFO L87 Difference]: Start difference. First operand 1767 states and 2561 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-01-09 18:39:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:06,441 INFO L93 Difference]: Finished difference Result 3488 states and 5062 transitions. [2025-01-09 18:39:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:39:06,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 240 [2025-01-09 18:39:06,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:06,459 INFO L225 Difference]: With dead ends: 3488 [2025-01-09 18:39:06,460 INFO L226 Difference]: Without dead ends: 1767 [2025-01-09 18:39:06,468 INFO L434 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 [2025-01-09 18:39:06,469 INFO L435 NwaCegarLoop]: 1690 mSDtfsCounter, 1659 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:06,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 1690 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 18:39:06,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2025-01-09 18:39:06,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2025-01-09 18:39:06,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1287 states have (on average 1.3916083916083917) internal successors, (1791), 1338 states have internal predecessors, (1791), 384 states have call successors, (384), 95 states have call predecessors, (384), 95 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2025-01-09 18:39:06,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2559 transitions. [2025-01-09 18:39:06,567 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2559 transitions. Word has length 240 [2025-01-09 18:39:06,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:06,568 INFO L471 AbstractCegarLoop]: Abstraction has 1767 states and 2559 transitions. [2025-01-09 18:39:06,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-01-09 18:39:06,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2559 transitions. [2025-01-09 18:39:06,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2025-01-09 18:39:06,577 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:06,577 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:06,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 18:39:06,578 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:06,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:06,579 INFO L85 PathProgramCache]: Analyzing trace with hash -594613114, now seen corresponding path program 1 times [2025-01-09 18:39:06,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:06,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100284158] [2025-01-09 18:39:06,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:06,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:06,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 240 statements into 1 equivalence classes. [2025-01-09 18:39:07,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 240 of 240 statements. [2025-01-09 18:39:07,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:07,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:07,648 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-01-09 18:39:07,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:07,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100284158] [2025-01-09 18:39:07,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100284158] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:07,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:07,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 18:39:07,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113178216] [2025-01-09 18:39:07,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:07,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 18:39:07,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:07,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 18:39:07,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 18:39:07,652 INFO L87 Difference]: Start difference. First operand 1767 states and 2559 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2025-01-09 18:39:07,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:07,755 INFO L93 Difference]: Finished difference Result 1771 states and 2563 transitions. [2025-01-09 18:39:07,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 18:39:07,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 240 [2025-01-09 18:39:07,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:07,770 INFO L225 Difference]: With dead ends: 1771 [2025-01-09 18:39:07,771 INFO L226 Difference]: Without dead ends: 1769 [2025-01-09 18:39:07,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 18:39:07,774 INFO L435 NwaCegarLoop]: 1696 mSDtfsCounter, 0 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5081 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:07,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5081 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 18:39:07,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2025-01-09 18:39:07,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1769. [2025-01-09 18:39:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1289 states have (on average 1.39100077579519) internal successors, (1793), 1340 states have internal predecessors, (1793), 384 states have call successors, (384), 95 states have call predecessors, (384), 95 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2025-01-09 18:39:07,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2561 transitions. [2025-01-09 18:39:07,863 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2561 transitions. Word has length 240 [2025-01-09 18:39:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:07,864 INFO L471 AbstractCegarLoop]: Abstraction has 1769 states and 2561 transitions. [2025-01-09 18:39:07,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2025-01-09 18:39:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2561 transitions. [2025-01-09 18:39:07,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2025-01-09 18:39:07,874 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:07,874 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:07,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 18:39:07,877 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:07,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:07,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2096853793, now seen corresponding path program 1 times [2025-01-09 18:39:07,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:07,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830677601] [2025-01-09 18:39:07,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:07,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:08,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 250 statements into 1 equivalence classes. [2025-01-09 18:39:08,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 250 of 250 statements. [2025-01-09 18:39:08,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:08,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-01-09 18:39:08,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:08,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830677601] [2025-01-09 18:39:08,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830677601] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:08,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:08,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 18:39:08,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918079080] [2025-01-09 18:39:08,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:08,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 18:39:08,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:08,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 18:39:08,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-09 18:39:08,731 INFO L87 Difference]: Start difference. First operand 1769 states and 2561 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2025-01-09 18:39:12,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:39:14,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:14,033 INFO L93 Difference]: Finished difference Result 3503 states and 5079 transitions. [2025-01-09 18:39:14,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 18:39:14,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 250 [2025-01-09 18:39:14,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:14,048 INFO L225 Difference]: With dead ends: 3503 [2025-01-09 18:39:14,049 INFO L226 Difference]: Without dead ends: 1780 [2025-01-09 18:39:14,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-09 18:39:14,059 INFO L435 NwaCegarLoop]: 1687 mSDtfsCounter, 1649 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1650 SdHoareTripleChecker+Valid, 2874 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:14,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 2874 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2025-01-09 18:39:14,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2025-01-09 18:39:14,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1770. [2025-01-09 18:39:14,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1290 states have (on average 1.3906976744186046) internal successors, (1794), 1341 states have internal predecessors, (1794), 384 states have call successors, (384), 95 states have call predecessors, (384), 95 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2025-01-09 18:39:14,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2562 transitions. [2025-01-09 18:39:14,159 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2562 transitions. Word has length 250 [2025-01-09 18:39:14,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:14,160 INFO L471 AbstractCegarLoop]: Abstraction has 1770 states and 2562 transitions. [2025-01-09 18:39:14,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2025-01-09 18:39:14,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2562 transitions. [2025-01-09 18:39:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2025-01-09 18:39:14,170 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:14,171 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:14,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 18:39:14,171 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:14,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:14,172 INFO L85 PathProgramCache]: Analyzing trace with hash 505451810, now seen corresponding path program 1 times [2025-01-09 18:39:14,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:14,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128717106] [2025-01-09 18:39:14,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:14,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:14,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 252 statements into 1 equivalence classes. [2025-01-09 18:39:14,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 252 of 252 statements. [2025-01-09 18:39:14,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:14,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:15,128 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-01-09 18:39:15,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:15,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128717106] [2025-01-09 18:39:15,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128717106] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:15,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:15,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 18:39:15,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010259910] [2025-01-09 18:39:15,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:15,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 18:39:15,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:15,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 18:39:15,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 18:39:15,130 INFO L87 Difference]: Start difference. First operand 1770 states and 2562 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-01-09 18:39:15,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:15,232 INFO L93 Difference]: Finished difference Result 1787 states and 2585 transitions. [2025-01-09 18:39:15,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 18:39:15,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 252 [2025-01-09 18:39:15,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:15,246 INFO L225 Difference]: With dead ends: 1787 [2025-01-09 18:39:15,246 INFO L226 Difference]: Without dead ends: 1785 [2025-01-09 18:39:15,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 18:39:15,249 INFO L435 NwaCegarLoop]: 1698 mSDtfsCounter, 120 mSDsluCounter, 4931 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 6629 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:15,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 6629 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 18:39:15,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2025-01-09 18:39:15,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1772. [2025-01-09 18:39:15,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1291 states have (on average 1.3903950426026337) internal successors, (1795), 1341 states have internal predecessors, (1795), 385 states have call successors, (385), 95 states have call predecessors, (385), 95 states have return successors, (385), 382 states have call predecessors, (385), 385 states have call successors, (385) [2025-01-09 18:39:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2565 transitions. [2025-01-09 18:39:15,330 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2565 transitions. Word has length 252 [2025-01-09 18:39:15,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:15,333 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 2565 transitions. [2025-01-09 18:39:15,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-01-09 18:39:15,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2565 transitions. [2025-01-09 18:39:15,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2025-01-09 18:39:15,346 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:15,346 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:15,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 18:39:15,346 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:15,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:15,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1899512810, now seen corresponding path program 1 times [2025-01-09 18:39:15,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:15,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040825918] [2025-01-09 18:39:15,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:15,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:15,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 284 statements into 1 equivalence classes. [2025-01-09 18:39:15,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 284 of 284 statements. [2025-01-09 18:39:15,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:15,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:15,936 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2025-01-09 18:39:15,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:15,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040825918] [2025-01-09 18:39:15,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040825918] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:15,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:15,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:39:15,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549692544] [2025-01-09 18:39:15,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:15,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:39:15,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:15,938 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:39:15,938 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:15,938 INFO L87 Difference]: Start difference. First operand 1772 states and 2565 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2025-01-09 18:39:19,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:39:20,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:20,169 INFO L93 Difference]: Finished difference Result 5180 states and 7507 transitions. [2025-01-09 18:39:20,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:39:20,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 284 [2025-01-09 18:39:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:20,196 INFO L225 Difference]: With dead ends: 5180 [2025-01-09 18:39:20,196 INFO L226 Difference]: Without dead ends: 3454 [2025-01-09 18:39:20,204 INFO L434 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 [2025-01-09 18:39:20,205 INFO L435 NwaCegarLoop]: 2515 mSDtfsCounter, 1605 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1605 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:20,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1605 Valid, 4157 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2025-01-09 18:39:20,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2025-01-09 18:39:20,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3448. [2025-01-09 18:39:20,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 2518 states have (on average 1.3947577442414614) internal successors, (3512), 2618 states have internal predecessors, (3512), 742 states have call successors, (742), 187 states have call predecessors, (742), 187 states have return successors, (742), 734 states have call predecessors, (742), 742 states have call successors, (742) [2025-01-09 18:39:20,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4996 transitions. [2025-01-09 18:39:20,396 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4996 transitions. Word has length 284 [2025-01-09 18:39:20,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:20,397 INFO L471 AbstractCegarLoop]: Abstraction has 3448 states and 4996 transitions. [2025-01-09 18:39:20,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2025-01-09 18:39:20,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4996 transitions. [2025-01-09 18:39:20,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2025-01-09 18:39:20,417 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:20,417 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:20,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 18:39:20,418 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:20,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:20,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1498931060, now seen corresponding path program 1 times [2025-01-09 18:39:20,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:20,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45196053] [2025-01-09 18:39:20,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:20,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:20,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 286 statements into 1 equivalence classes. [2025-01-09 18:39:20,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 286 of 286 statements. [2025-01-09 18:39:20,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:20,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:21,041 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2025-01-09 18:39:21,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:21,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45196053] [2025-01-09 18:39:21,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45196053] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:21,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:21,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 18:39:21,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065303749] [2025-01-09 18:39:21,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:21,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 18:39:21,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:21,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 18:39:21,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 18:39:21,044 INFO L87 Difference]: Start difference. First operand 3448 states and 4996 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2025-01-09 18:39:25,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:39:25,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:25,206 INFO L93 Difference]: Finished difference Result 5769 states and 8337 transitions. [2025-01-09 18:39:25,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 18:39:25,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 286 [2025-01-09 18:39:25,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:25,224 INFO L225 Difference]: With dead ends: 5769 [2025-01-09 18:39:25,225 INFO L226 Difference]: Without dead ends: 2356 [2025-01-09 18:39:25,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 18:39:25,237 INFO L435 NwaCegarLoop]: 1697 mSDtfsCounter, 0 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5082 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:25,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5082 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2025-01-09 18:39:25,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2025-01-09 18:39:25,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2356. [2025-01-09 18:39:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2356 states, 1708 states have (on average 1.3823185011709602) internal successors, (2361), 1774 states have internal predecessors, (2361), 513 states have call successors, (513), 134 states have call predecessors, (513), 134 states have return successors, (513), 508 states have call predecessors, (513), 513 states have call successors, (513) [2025-01-09 18:39:25,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 3387 transitions. [2025-01-09 18:39:25,370 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 3387 transitions. Word has length 286 [2025-01-09 18:39:25,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:25,371 INFO L471 AbstractCegarLoop]: Abstraction has 2356 states and 3387 transitions. [2025-01-09 18:39:25,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2025-01-09 18:39:25,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 3387 transitions. [2025-01-09 18:39:25,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2025-01-09 18:39:25,384 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:25,384 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:25,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 18:39:25,385 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:25,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:25,385 INFO L85 PathProgramCache]: Analyzing trace with hash -2044028112, now seen corresponding path program 1 times [2025-01-09 18:39:25,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:25,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154695785] [2025-01-09 18:39:25,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:25,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:25,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 286 statements into 1 equivalence classes. [2025-01-09 18:39:25,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 286 of 286 statements. [2025-01-09 18:39:25,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:25,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:26,078 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2025-01-09 18:39:26,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:26,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154695785] [2025-01-09 18:39:26,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154695785] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:26,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:26,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 18:39:26,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152782790] [2025-01-09 18:39:26,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:26,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 18:39:26,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:26,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 18:39:26,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-09 18:39:26,083 INFO L87 Difference]: Start difference. First operand 2356 states and 3387 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2025-01-09 18:39:30,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:39:31,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:31,575 INFO L93 Difference]: Finished difference Result 4105 states and 5924 transitions. [2025-01-09 18:39:31,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 18:39:31,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 286 [2025-01-09 18:39:31,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:31,594 INFO L225 Difference]: With dead ends: 4105 [2025-01-09 18:39:31,594 INFO L226 Difference]: Without dead ends: 2383 [2025-01-09 18:39:31,601 INFO L434 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 [2025-01-09 18:39:31,603 INFO L435 NwaCegarLoop]: 1685 mSDtfsCounter, 1633 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 2865 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:31,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1639 Valid, 2865 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 534 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2025-01-09 18:39:31,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2025-01-09 18:39:31,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2360. [2025-01-09 18:39:31,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2360 states, 1712 states have (on average 1.3820093457943925) internal successors, (2366), 1778 states have internal predecessors, (2366), 513 states have call successors, (513), 134 states have call predecessors, (513), 134 states have return successors, (513), 508 states have call predecessors, (513), 513 states have call successors, (513) [2025-01-09 18:39:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 3392 transitions. [2025-01-09 18:39:31,720 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 3392 transitions. Word has length 286 [2025-01-09 18:39:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:31,723 INFO L471 AbstractCegarLoop]: Abstraction has 2360 states and 3392 transitions. [2025-01-09 18:39:31,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2025-01-09 18:39:31,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 3392 transitions. [2025-01-09 18:39:31,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2025-01-09 18:39:31,737 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:31,738 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:31,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 18:39:31,738 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:31,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:31,739 INFO L85 PathProgramCache]: Analyzing trace with hash -969738176, now seen corresponding path program 1 times [2025-01-09 18:39:31,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:31,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144418599] [2025-01-09 18:39:31,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:31,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:32,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 289 statements into 1 equivalence classes. [2025-01-09 18:39:32,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 289 of 289 statements. [2025-01-09 18:39:32,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:32,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:32,311 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2025-01-09 18:39:32,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:32,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144418599] [2025-01-09 18:39:32,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144418599] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:39:32,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 18:39:32,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 18:39:32,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956042893] [2025-01-09 18:39:32,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:39:32,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:39:32,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:32,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:39:32,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 18:39:32,314 INFO L87 Difference]: Start difference. First operand 2360 states and 3392 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-01-09 18:39:32,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:39:32,459 INFO L93 Difference]: Finished difference Result 4674 states and 6756 transitions. [2025-01-09 18:39:32,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:39:32,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 289 [2025-01-09 18:39:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:39:32,479 INFO L225 Difference]: With dead ends: 4674 [2025-01-09 18:39:32,480 INFO L226 Difference]: Without dead ends: 2360 [2025-01-09 18:39:32,489 INFO L434 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 [2025-01-09 18:39:32,490 INFO L435 NwaCegarLoop]: 1687 mSDtfsCounter, 0 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3368 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:39:32,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3368 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 18:39:32,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2025-01-09 18:39:32,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2360. [2025-01-09 18:39:32,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2360 states, 1712 states have (on average 1.376752336448598) internal successors, (2357), 1778 states have internal predecessors, (2357), 513 states have call successors, (513), 134 states have call predecessors, (513), 134 states have return successors, (513), 508 states have call predecessors, (513), 513 states have call successors, (513) [2025-01-09 18:39:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 3383 transitions. [2025-01-09 18:39:32,603 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 3383 transitions. Word has length 289 [2025-01-09 18:39:32,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:39:32,604 INFO L471 AbstractCegarLoop]: Abstraction has 2360 states and 3383 transitions. [2025-01-09 18:39:32,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (28), 1 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-01-09 18:39:32,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 3383 transitions. [2025-01-09 18:39:32,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2025-01-09 18:39:32,617 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:39:32,618 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:39:32,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 18:39:32,618 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:39:32,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:39:32,619 INFO L85 PathProgramCache]: Analyzing trace with hash 950629795, now seen corresponding path program 1 times [2025-01-09 18:39:32,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:39:32,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672717291] [2025-01-09 18:39:32,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:32,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:39:32,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 292 statements into 1 equivalence classes. [2025-01-09 18:39:33,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 292 of 292 statements. [2025-01-09 18:39:33,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:33,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2025-01-09 18:39:33,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:39:33,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672717291] [2025-01-09 18:39:33,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672717291] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 18:39:33,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249109209] [2025-01-09 18:39:33,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:39:33,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 18:39:33,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 18:39:33,314 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 18:39:33,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 18:39:34,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 292 statements into 1 equivalence classes. [2025-01-09 18:39:34,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 292 of 292 statements. [2025-01-09 18:39:34,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:39:34,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:39:34,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 2115 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 18:39:34,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 18:39:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2025-01-09 18:39:34,959 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 18:39:35,348 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2025-01-09 18:39:35,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249109209] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 18:39:35,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 18:39:35,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 10 [2025-01-09 18:39:35,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929691291] [2025-01-09 18:39:35,349 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 18:39:35,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 18:39:35,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:39:35,350 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 18:39:35,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2025-01-09 18:39:35,351 INFO L87 Difference]: Start difference. First operand 2360 states and 3383 transitions. Second operand has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 4 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2025-01-09 18:39:39,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:39:43,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:39:47,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:39:51,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:39:55,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:39:59,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-01-09 18:40:01,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:40:01,402 INFO L93 Difference]: Finished difference Result 4166 states and 5999 transitions. [2025-01-09 18:40:01,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 18:40:01,403 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 4 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) Word has length 292 [2025-01-09 18:40:01,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:40:01,424 INFO L225 Difference]: With dead ends: 4166 [2025-01-09 18:40:01,424 INFO L226 Difference]: Without dead ends: 2440 [2025-01-09 18:40:01,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 579 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2025-01-09 18:40:01,433 INFO L435 NwaCegarLoop]: 1684 mSDtfsCounter, 1689 mSDsluCounter, 3573 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 38 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 5257 SdHoareTripleChecker+Invalid, 1652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1608 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2025-01-09 18:40:01,433 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 5257 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1608 Invalid, 6 Unknown, 0 Unchecked, 25.8s Time] [2025-01-09 18:40:01,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2025-01-09 18:40:01,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2367. [2025-01-09 18:40:01,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 1719 states have (on average 1.3763816172193135) internal successors, (2366), 1785 states have internal predecessors, (2366), 513 states have call successors, (513), 134 states have call predecessors, (513), 134 states have return successors, (513), 508 states have call predecessors, (513), 513 states have call successors, (513) [2025-01-09 18:40:01,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3392 transitions. [2025-01-09 18:40:01,590 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3392 transitions. Word has length 292 [2025-01-09 18:40:01,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:40:01,591 INFO L471 AbstractCegarLoop]: Abstraction has 2367 states and 3392 transitions. [2025-01-09 18:40:01,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 4 states have call successors, (77), 3 states have call predecessors, (77), 3 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2025-01-09 18:40:01,591 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3392 transitions. [2025-01-09 18:40:01,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2025-01-09 18:40:01,607 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:40:01,607 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:40:01,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 18:40:01,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 18:40:01,808 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:40:01,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:40:01,809 INFO L85 PathProgramCache]: Analyzing trace with hash -682619377, now seen corresponding path program 1 times [2025-01-09 18:40:01,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:40:01,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288087334] [2025-01-09 18:40:01,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:40:01,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 18:40:02,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 302 statements into 1 equivalence classes. [2025-01-09 18:40:02,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 302 of 302 statements. [2025-01-09 18:40:02,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:40:02,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:40:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2025-01-09 18:40:03,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 18:40:03,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288087334] [2025-01-09 18:40:03,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288087334] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 18:40:03,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015169285] [2025-01-09 18:40:03,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:40:03,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 18:40:03,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 18:40:03,411 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 18:40:03,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 18:40:04,343 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 302 statements into 1 equivalence classes. [2025-01-09 18:40:04,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 302 of 302 statements. [2025-01-09 18:40:04,583 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 18:40:04,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 18:40:04,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 2177 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 18:40:04,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 18:40:04,626 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2025-01-09 18:40:04,626 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 18:40:04,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015169285] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 18:40:04,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 18:40:04,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2025-01-09 18:40:04,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701322004] [2025-01-09 18:40:04,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 18:40:04,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 18:40:04,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 18:40:04,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 18:40:04,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 18:40:04,629 INFO L87 Difference]: Start difference. First operand 2367 states and 3392 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2025-01-09 18:40:04,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 18:40:04,741 INFO L93 Difference]: Finished difference Result 4117 states and 5914 transitions. [2025-01-09 18:40:04,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 18:40:04,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 302 [2025-01-09 18:40:04,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 18:40:04,761 INFO L225 Difference]: With dead ends: 4117 [2025-01-09 18:40:04,761 INFO L226 Difference]: Without dead ends: 2367 [2025-01-09 18:40:04,770 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 18:40:04,771 INFO L435 NwaCegarLoop]: 1687 mSDtfsCounter, 2 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3371 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 18:40:04,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3371 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 18:40:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2025-01-09 18:40:04,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2367. [2025-01-09 18:40:04,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2367 states, 1719 states have (on average 1.3746364165212333) internal successors, (2363), 1785 states have internal predecessors, (2363), 513 states have call successors, (513), 134 states have call predecessors, (513), 134 states have return successors, (513), 508 states have call predecessors, (513), 513 states have call successors, (513) [2025-01-09 18:40:04,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3389 transitions. [2025-01-09 18:40:04,881 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3389 transitions. Word has length 302 [2025-01-09 18:40:04,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 18:40:04,881 INFO L471 AbstractCegarLoop]: Abstraction has 2367 states and 3389 transitions. [2025-01-09 18:40:04,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2025-01-09 18:40:04,882 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3389 transitions. [2025-01-09 18:40:04,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2025-01-09 18:40:04,895 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 18:40:04,895 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 18:40:04,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 18:40:05,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 18:40:05,097 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 18:40:05,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 18:40:05,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1365341420, now seen corresponding path program 1 times [2025-01-09 18:40:05,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 18:40:05,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529281238] [2025-01-09 18:40:05,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 18:40:05,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms