./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 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC --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-dev-6497de0 [2024-11-24 00:32:02,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:32:02,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 00:32:02,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:32:02,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:32:02,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:32:02,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:32:02,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:32:02,580 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:32:02,580 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:32:02,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:32:02,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:32:02,580 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:32:02,581 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:32:02,581 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:32:02,581 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:32:02,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:32:02,581 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:32:02,581 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:32:02,581 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:32:02,582 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:32:02,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:32:02,582 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:32:02,582 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:32:02,582 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:32:02,582 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:32:02,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:32:02,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:32:02,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:32:02,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:32:02,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:32:02,583 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:32:02,583 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:32:02,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:32:02,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:32:02,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:32:02,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:32:02,583 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:32:02,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:32:02,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:32:02,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:32:02,584 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:32:02,584 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:32:02,584 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:32:02,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:32:02,585 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC 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 [2024-11-24 00:32:02,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:32:02,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:32:02,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:32:02,955 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:32:02,955 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:32:02,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-24 00:32:06,138 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/data/9dafd5bab/82c33f1a5e6948d48968ba92bf12f843/FLAG3a9ace00f [2024-11-24 00:32:06,898 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:32:06,898 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-24 00:32:06,968 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/data/9dafd5bab/82c33f1a5e6948d48968ba92bf12f843/FLAG3a9ace00f [2024-11-24 00:32:07,000 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/data/9dafd5bab/82c33f1a5e6948d48968ba92bf12f843 [2024-11-24 00:32:07,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:32:07,007 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:32:07,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:32:07,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:32:07,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:32:07,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:32:07" (1/1) ... [2024-11-24 00:32:07,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fecc0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:07, skipping insertion in model container [2024-11-24 00:32:07,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:32:07" (1/1) ... [2024-11-24 00:32:07,172 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:32:08,820 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/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] [2024-11-24 00:32:08,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:32:08,891 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:32:09,107 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] [2024-11-24 00:32:09,111 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] [2024-11-24 00:32:09,112 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] [2024-11-24 00:32:09,113 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] [2024-11-24 00:32:09,124 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4843] [2024-11-24 00:32:09,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4846] [2024-11-24 00:32:09,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4849] [2024-11-24 00:32:09,127 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4852] [2024-11-24 00:32:09,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5234] [2024-11-24 00:32:09,156 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5238] [2024-11-24 00:32:09,156 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5242] [2024-11-24 00:32:09,157 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5246] [2024-11-24 00:32:09,157 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] [2024-11-24 00:32:09,158 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] [2024-11-24 00:32:09,162 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] [2024-11-24 00:32:09,163 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] [2024-11-24 00:32:09,165 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] [2024-11-24 00:32:09,166 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] [2024-11-24 00:32:09,166 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] [2024-11-24 00:32:09,167 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] [2024-11-24 00:32:09,168 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] [2024-11-24 00:32:09,171 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] [2024-11-24 00:32:09,172 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] [2024-11-24 00:32:09,172 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] [2024-11-24 00:32:09,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5365] [2024-11-24 00:32:09,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5369] [2024-11-24 00:32:09,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5373] [2024-11-24 00:32:09,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5377] [2024-11-24 00:32:09,179 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] [2024-11-24 00:32:09,179 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] [2024-11-24 00:32:09,180 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] [2024-11-24 00:32:09,180 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] [2024-11-24 00:32:09,181 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] [2024-11-24 00:32:09,181 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] [2024-11-24 00:32:09,182 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] [2024-11-24 00:32:09,182 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] [2024-11-24 00:32:09,183 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] [2024-11-24 00:32:09,183 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] [2024-11-24 00:32:09,184 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] [2024-11-24 00:32:09,184 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] [2024-11-24 00:32:09,189 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5520] [2024-11-24 00:32:09,191 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5524] [2024-11-24 00:32:09,191 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5528] [2024-11-24 00:32:09,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5532] [2024-11-24 00:32:09,193 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] [2024-11-24 00:32:09,194 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] [2024-11-24 00:32:09,194 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] [2024-11-24 00:32:09,195 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] [2024-11-24 00:32:09,195 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] [2024-11-24 00:32:09,196 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] [2024-11-24 00:32:09,196 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] [2024-11-24 00:32:09,197 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] [2024-11-24 00:32:09,329 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] [2024-11-24 00:32:09,329 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] [2024-11-24 00:32:09,329 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] [2024-11-24 00:32:09,330 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] [2024-11-24 00:32:09,330 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] [2024-11-24 00:32:09,331 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] [2024-11-24 00:32:09,331 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] [2024-11-24 00:32:09,332 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] [2024-11-24 00:32:09,333 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] [2024-11-24 00:32:09,333 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] [2024-11-24 00:32:09,336 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] [2024-11-24 00:32:09,337 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] [2024-11-24 00:32:09,338 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] [2024-11-24 00:32:09,338 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] [2024-11-24 00:32:09,339 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] [2024-11-24 00:32:09,343 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] [2024-11-24 00:32:09,344 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] [2024-11-24 00:32:09,345 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] [2024-11-24 00:32:09,345 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] [2024-11-24 00:32:09,347 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] [2024-11-24 00:32:09,348 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] [2024-11-24 00:32:09,349 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] [2024-11-24 00:32:09,349 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] [2024-11-24 00:32:09,352 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] [2024-11-24 00:32:09,352 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] [2024-11-24 00:32:09,354 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] [2024-11-24 00:32:09,355 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] [2024-11-24 00:32:09,358 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] [2024-11-24 00:32:09,358 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] [2024-11-24 00:32:09,359 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] [2024-11-24 00:32:09,429 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/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] [2024-11-24 00:32:09,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:32:09,590 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:32:09,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09 WrapperNode [2024-11-24 00:32:09,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:32:09,595 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:32:09,595 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:32:09,595 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:32:09,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:09,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:09,899 INFO L138 Inliner]: procedures = 186, calls = 884, calls flagged for inlining = 94, calls inlined = 92, statements flattened = 3448 [2024-11-24 00:32:09,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:32:09,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:32:09,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:32:09,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:32:09,912 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:09,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:09,955 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:10,505 INFO L175 MemorySlicer]: Split 434 memory accesses to 10 slices as follows [2, 1, 3, 16, 1, 2, 36, 22, 347, 4]. 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, 5, 0]. The 182 writes are split as follows [0, 0, 0, 2, 1, 0, 36, 22, 120, 1]. [2024-11-24 00:32:10,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:10,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:10,598 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:10,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:10,644 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:10,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:10,698 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:10,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:32:10,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:32:10,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:32:10,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:32:10,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (1/1) ... [2024-11-24 00:32:10,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:32:10,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:32:10,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:32:10,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:32:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2024-11-24 00:32:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2024-11-24 00:32:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2024-11-24 00:32:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2024-11-24 00:32:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 00:32:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 00:32:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 00:32:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 00:32:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 00:32:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 00:32:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 00:32:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 00:32:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-24 00:32:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-24 00:32:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2024-11-24 00:32:10,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __xchg_wrong_size [2024-11-24 00:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2024-11-24 00:32:10,845 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2024-11-24 00:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-24 00:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-24 00:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-24 00:32:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-24 00:32:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-24 00:32:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-24 00:32:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-24 00:32:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-24 00:32:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-24 00:32:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-24 00:32:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 00:32:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 00:32:10,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 00:32:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 00:32:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 00:32:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 00:32:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 00:32:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 00:32:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-24 00:32:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-24 00:32:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 00:32:10,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 00:32:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:32:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:32:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:32:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:32:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:32:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 00:32:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 00:32:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 00:32:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 00:32:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 00:32:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-24 00:32:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-24 00:32:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-24 00:32:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-24 00:32:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2024-11-24 00:32:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2024-11-24 00:32:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2024-11-24 00:32:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2024-11-24 00:32:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-24 00:32:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-24 00:32:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-24 00:32:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-24 00:32:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-24 00:32:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-24 00:32:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-24 00:32:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-24 00:32:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-24 00:32:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-11-24 00:32:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-24 00:32:10,850 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-24 00:32:10,850 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-24 00:32:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-24 00:32:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-24 00:32:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-24 00:32:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-24 00:32:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-24 00:32:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-24 00:32:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-11-24 00:32:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-24 00:32:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 00:32:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-24 00:32:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2024-11-24 00:32:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-24 00:32:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2024-11-24 00:32:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 00:32:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-24 00:32:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-24 00:32:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-24 00:32:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:32:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-24 00:32:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-24 00:32:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2024-11-24 00:32:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2024-11-24 00:32:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-24 00:32:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2024-11-24 00:32:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2024-11-24 00:32:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-24 00:32:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2024-11-24 00:32:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 00:32:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2024-11-24 00:32:10,858 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2024-11-24 00:32:10,858 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-24 00:32:10,858 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2024-11-24 00:32:10,858 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 00:32:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-24 00:32:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2024-11-24 00:32:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-11-24 00:32:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2024-11-24 00:32:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2024-11-24 00:32:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2024-11-24 00:32:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2024-11-24 00:32:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2024-11-24 00:32:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-24 00:32:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-24 00:32:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-24 00:32:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-24 00:32:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2024-11-24 00:32:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2024-11-24 00:32:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-24 00:32:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-24 00:32:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-24 00:32:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-24 00:32:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2024-11-24 00:32:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2024-11-24 00:32:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-24 00:32:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-24 00:32:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-24 00:32:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-24 00:32:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-24 00:32:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-24 00:32:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-24 00:32:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-24 00:32:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-24 00:32:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-24 00:32:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:32:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:32:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:32:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:32:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:32:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:32:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:32:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 00:32:10,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 00:32:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 00:32:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-11-24 00:32:10,865 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-11-24 00:32:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2024-11-24 00:32:10,865 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2024-11-24 00:32:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2024-11-24 00:32:10,865 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2024-11-24 00:32:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-24 00:32:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-24 00:32:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-24 00:32:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-24 00:32:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-24 00:32:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-24 00:32:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-24 00:32:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-24 00:32:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-24 00:32:10,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-24 00:32:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:32:10,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:32:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2024-11-24 00:32:10,867 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2024-11-24 00:32:10,867 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2024-11-24 00:32:10,867 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2024-11-24 00:32:11,795 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:32:11,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:32:12,009 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 00:32:21,667 INFO L? ?]: Removed 1548 outVars from TransFormulas that were not future-live. [2024-11-24 00:32:21,668 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:32:21,734 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:32:21,738 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 00:32:21,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:32:21 BoogieIcfgContainer [2024-11-24 00:32:21,738 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:32:21,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:32:21,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:32:21,752 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:32:21,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:32:07" (1/3) ... [2024-11-24 00:32:21,753 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ddc253d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:32:21, skipping insertion in model container [2024-11-24 00:32:21,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:32:09" (2/3) ... [2024-11-24 00:32:21,754 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ddc253d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:32:21, skipping insertion in model container [2024-11-24 00:32:21,754 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:32:21" (3/3) ... [2024-11-24 00:32:21,756 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-24 00:32:21,775 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:32:21,777 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. [2024-11-24 00:32:21,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:32:21,929 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;@416fd58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:32:21,930 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:32:21,941 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) [2024-11-24 00:32:21,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-24 00:32:21,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:21,976 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] [2024-11-24 00:32:21,977 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:32:21,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:21,986 INFO L85 PathProgramCache]: Analyzing trace with hash 880051057, now seen corresponding path program 1 times [2024-11-24 00:32:21,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:21,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039625887] [2024-11-24 00:32:21,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:21,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-24 00:32:23,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:23,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039625887] [2024-11-24 00:32:23,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039625887] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:32:23,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507093198] [2024-11-24 00:32:23,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:23,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:32:23,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:32:23,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:32:23,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:32:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:25,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 1530 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:32:25,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:32:25,097 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-11-24 00:32:25,097 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:32:25,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507093198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:25,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:32:25,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:32:25,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853076485] [2024-11-24 00:32:25,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:25,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:32:25,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:25,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:32:25,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:32:25,134 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) [2024-11-24 00:32:25,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:25,329 INFO L93 Difference]: Finished difference Result 2398 states and 3567 transitions. [2024-11-24 00:32:25,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:32:25,332 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 [2024-11-24 00:32:25,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:25,373 INFO L225 Difference]: With dead ends: 2398 [2024-11-24 00:32:25,373 INFO L226 Difference]: Without dead ends: 1155 [2024-11-24 00:32:25,395 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 [2024-11-24 00:32:25,398 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 [2024-11-24 00:32:25,403 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] [2024-11-24 00:32:25,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2024-11-24 00:32:25,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1155. [2024-11-24 00:32:25,587 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) [2024-11-24 00:32:25,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1699 transitions. [2024-11-24 00:32:25,622 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1699 transitions. Word has length 161 [2024-11-24 00:32:25,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:25,623 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1699 transitions. [2024-11-24 00:32:25,623 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) [2024-11-24 00:32:25,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1699 transitions. [2024-11-24 00:32:25,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-24 00:32:25,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:25,635 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] [2024-11-24 00:32:25,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:32:25,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:32:25,837 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:32:25,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:25,838 INFO L85 PathProgramCache]: Analyzing trace with hash -738746457, now seen corresponding path program 1 times [2024-11-24 00:32:25,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:25,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559393892] [2024-11-24 00:32:25,838 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:25,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-24 00:32:26,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:26,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559393892] [2024-11-24 00:32:26,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559393892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:26,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:26,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:32:26,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640295263] [2024-11-24 00:32:26,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:26,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:32:26,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:26,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:32:26,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:32:26,906 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) [2024-11-24 00:32:27,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:27,199 INFO L93 Difference]: Finished difference Result 2886 states and 4211 transitions. [2024-11-24 00:32:27,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:32:27,200 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 [2024-11-24 00:32:27,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:27,221 INFO L225 Difference]: With dead ends: 2886 [2024-11-24 00:32:27,222 INFO L226 Difference]: Without dead ends: 1767 [2024-11-24 00:32:27,227 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 [2024-11-24 00:32:27,229 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 [2024-11-24 00:32:27,230 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] [2024-11-24 00:32:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-24 00:32:27,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2024-11-24 00:32:27,358 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) [2024-11-24 00:32:27,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2561 transitions. [2024-11-24 00:32:27,378 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2561 transitions. Word has length 161 [2024-11-24 00:32:27,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:27,381 INFO L471 AbstractCegarLoop]: Abstraction has 1767 states and 2561 transitions. [2024-11-24 00:32:27,381 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) [2024-11-24 00:32:27,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2561 transitions. [2024-11-24 00:32:27,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-24 00:32:27,395 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:27,395 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] [2024-11-24 00:32:27,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:32:27,396 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:32:27,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:27,396 INFO L85 PathProgramCache]: Analyzing trace with hash 400080584, now seen corresponding path program 1 times [2024-11-24 00:32:27,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:27,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881017086] [2024-11-24 00:32:27,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:27,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:27,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:28,512 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-24 00:32:28,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:28,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881017086] [2024-11-24 00:32:28,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881017086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:28,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:28,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:32:28,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92590359] [2024-11-24 00:32:28,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:28,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:32:28,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:28,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:32:28,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:32:28,515 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) [2024-11-24 00:32:28,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:28,662 INFO L93 Difference]: Finished difference Result 3488 states and 5062 transitions. [2024-11-24 00:32:28,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:32:28,663 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 [2024-11-24 00:32:28,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:28,683 INFO L225 Difference]: With dead ends: 3488 [2024-11-24 00:32:28,683 INFO L226 Difference]: Without dead ends: 1767 [2024-11-24 00:32:28,691 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 [2024-11-24 00:32:28,693 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 [2024-11-24 00:32:28,694 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] [2024-11-24 00:32:28,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states. [2024-11-24 00:32:28,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1767. [2024-11-24 00:32:28,869 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) [2024-11-24 00:32:28,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2559 transitions. [2024-11-24 00:32:28,889 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2559 transitions. Word has length 240 [2024-11-24 00:32:28,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:28,890 INFO L471 AbstractCegarLoop]: Abstraction has 1767 states and 2559 transitions. [2024-11-24 00:32:28,890 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) [2024-11-24 00:32:28,891 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2559 transitions. [2024-11-24 00:32:28,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-24 00:32:28,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:28,901 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] [2024-11-24 00:32:28,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:32:28,901 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:32:28,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:28,902 INFO L85 PathProgramCache]: Analyzing trace with hash -594613114, now seen corresponding path program 1 times [2024-11-24 00:32:28,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:28,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587203445] [2024-11-24 00:32:28,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:28,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-24 00:32:30,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:30,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587203445] [2024-11-24 00:32:30,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587203445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:30,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:30,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:32:30,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636110150] [2024-11-24 00:32:30,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:30,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:32:30,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:30,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:32:30,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:32:30,747 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) [2024-11-24 00:32:30,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:30,919 INFO L93 Difference]: Finished difference Result 1771 states and 2563 transitions. [2024-11-24 00:32:30,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:32:30,920 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 [2024-11-24 00:32:30,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:30,939 INFO L225 Difference]: With dead ends: 1771 [2024-11-24 00:32:30,939 INFO L226 Difference]: Without dead ends: 1769 [2024-11-24 00:32:30,941 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 [2024-11-24 00:32:30,944 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 [2024-11-24 00:32:30,945 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] [2024-11-24 00:32:30,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2024-11-24 00:32:31,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1769. [2024-11-24 00:32:31,056 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) [2024-11-24 00:32:31,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2561 transitions. [2024-11-24 00:32:31,076 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2561 transitions. Word has length 240 [2024-11-24 00:32:31,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:31,077 INFO L471 AbstractCegarLoop]: Abstraction has 1769 states and 2561 transitions. [2024-11-24 00:32:31,078 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) [2024-11-24 00:32:31,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2561 transitions. [2024-11-24 00:32:31,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-24 00:32:31,090 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:31,090 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] [2024-11-24 00:32:31,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:32:31,090 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:32:31,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:31,091 INFO L85 PathProgramCache]: Analyzing trace with hash 2096853793, now seen corresponding path program 1 times [2024-11-24 00:32:31,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:31,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752396822] [2024-11-24 00:32:31,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:31,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:32,247 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-24 00:32:32,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:32,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752396822] [2024-11-24 00:32:32,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752396822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:32,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:32,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:32:32,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140422911] [2024-11-24 00:32:32,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:32,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:32:32,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:32,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:32:32,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:32:32,253 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) [2024-11-24 00:32:36,276 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 [] [2024-11-24 00:32:38,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:38,390 INFO L93 Difference]: Finished difference Result 3503 states and 5079 transitions. [2024-11-24 00:32:38,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:32:38,392 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 [2024-11-24 00:32:38,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:38,410 INFO L225 Difference]: With dead ends: 3503 [2024-11-24 00:32:38,411 INFO L226 Difference]: Without dead ends: 1780 [2024-11-24 00:32:38,419 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 [2024-11-24 00:32:38,421 INFO L435 NwaCegarLoop]: 1687 mSDtfsCounter, 1649 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s 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, 5.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:32:38,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1650 Valid, 2874 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 520 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2024-11-24 00:32:38,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1780 states. [2024-11-24 00:32:38,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1780 to 1770. [2024-11-24 00:32:38,527 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) [2024-11-24 00:32:38,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2562 transitions. [2024-11-24 00:32:38,545 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2562 transitions. Word has length 250 [2024-11-24 00:32:38,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:38,546 INFO L471 AbstractCegarLoop]: Abstraction has 1770 states and 2562 transitions. [2024-11-24 00:32:38,546 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) [2024-11-24 00:32:38,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2562 transitions. [2024-11-24 00:32:38,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-24 00:32:38,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:38,557 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] [2024-11-24 00:32:38,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:32:38,558 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:32:38,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:38,559 INFO L85 PathProgramCache]: Analyzing trace with hash 505451810, now seen corresponding path program 1 times [2024-11-24 00:32:38,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:38,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339753135] [2024-11-24 00:32:38,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:38,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-24 00:32:39,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:39,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339753135] [2024-11-24 00:32:39,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339753135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:39,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:39,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:32:39,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757905100] [2024-11-24 00:32:39,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:39,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:32:39,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:39,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:32:39,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:32:39,934 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) [2024-11-24 00:32:40,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:40,124 INFO L93 Difference]: Finished difference Result 1787 states and 2585 transitions. [2024-11-24 00:32:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:32:40,125 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 [2024-11-24 00:32:40,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:40,140 INFO L225 Difference]: With dead ends: 1787 [2024-11-24 00:32:40,140 INFO L226 Difference]: Without dead ends: 1785 [2024-11-24 00:32:40,142 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 [2024-11-24 00:32:40,143 INFO L435 NwaCegarLoop]: 1698 mSDtfsCounter, 120 mSDsluCounter, 4931 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:32:40,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 6629 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:32:40,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2024-11-24 00:32:40,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1772. [2024-11-24 00:32:40,241 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) [2024-11-24 00:32:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2565 transitions. [2024-11-24 00:32:40,256 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2565 transitions. Word has length 252 [2024-11-24 00:32:40,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:40,257 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 2565 transitions. [2024-11-24 00:32:40,257 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) [2024-11-24 00:32:40,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2565 transitions. [2024-11-24 00:32:40,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-24 00:32:40,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:40,272 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] [2024-11-24 00:32:40,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:32:40,272 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:32:40,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:40,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1899512810, now seen corresponding path program 1 times [2024-11-24 00:32:40,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:40,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121328428] [2024-11-24 00:32:40,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:40,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:41,217 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-24 00:32:41,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:41,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121328428] [2024-11-24 00:32:41,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121328428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:41,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:41,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:32:41,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440350640] [2024-11-24 00:32:41,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:41,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:32:41,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:41,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:32:41,221 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:32:41,222 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) [2024-11-24 00:32:45,241 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 [] [2024-11-24 00:32:45,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:45,624 INFO L93 Difference]: Finished difference Result 5180 states and 7507 transitions. [2024-11-24 00:32:45,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:32:45,626 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 [2024-11-24 00:32:45,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:45,655 INFO L225 Difference]: With dead ends: 5180 [2024-11-24 00:32:45,655 INFO L226 Difference]: Without dead ends: 3454 [2024-11-24 00:32:45,663 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 [2024-11-24 00:32:45,665 INFO L435 NwaCegarLoop]: 2515 mSDtfsCounter, 1605 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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 [2024-11-24 00:32:45,665 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] [2024-11-24 00:32:45,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3454 states. [2024-11-24 00:32:45,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3454 to 3448. [2024-11-24 00:32:45,946 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) [2024-11-24 00:32:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4996 transitions. [2024-11-24 00:32:45,978 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4996 transitions. Word has length 284 [2024-11-24 00:32:45,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:45,979 INFO L471 AbstractCegarLoop]: Abstraction has 3448 states and 4996 transitions. [2024-11-24 00:32:45,979 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) [2024-11-24 00:32:45,979 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4996 transitions. [2024-11-24 00:32:46,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-24 00:32:46,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:46,008 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] [2024-11-24 00:32:46,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:32:46,009 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:32:46,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:46,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1498931060, now seen corresponding path program 1 times [2024-11-24 00:32:46,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:46,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342052552] [2024-11-24 00:32:46,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:46,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:46,941 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 432 trivial. 0 not checked. [2024-11-24 00:32:46,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:46,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342052552] [2024-11-24 00:32:46,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342052552] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:46,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:46,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:32:46,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948995867] [2024-11-24 00:32:46,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:46,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:32:46,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:46,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:32:46,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:32:46,944 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) [2024-11-24 00:32:50,964 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 [] [2024-11-24 00:32:51,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:51,235 INFO L93 Difference]: Finished difference Result 5769 states and 8337 transitions. [2024-11-24 00:32:51,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:32:51,236 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 [2024-11-24 00:32:51,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:51,257 INFO L225 Difference]: With dead ends: 5769 [2024-11-24 00:32:51,258 INFO L226 Difference]: Without dead ends: 2356 [2024-11-24 00:32:51,272 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 [2024-11-24 00:32:51,273 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, 4.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:32:51,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5082 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-24 00:32:51,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2356 states. [2024-11-24 00:32:51,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2356 to 2356. [2024-11-24 00:32:51,452 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) [2024-11-24 00:32:51,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2356 states to 2356 states and 3387 transitions. [2024-11-24 00:32:51,472 INFO L78 Accepts]: Start accepts. Automaton has 2356 states and 3387 transitions. Word has length 286 [2024-11-24 00:32:51,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:51,473 INFO L471 AbstractCegarLoop]: Abstraction has 2356 states and 3387 transitions. [2024-11-24 00:32:51,473 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) [2024-11-24 00:32:51,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2356 states and 3387 transitions. [2024-11-24 00:32:51,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-24 00:32:51,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:51,492 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] [2024-11-24 00:32:51,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:32:51,492 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:32:51,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:51,493 INFO L85 PathProgramCache]: Analyzing trace with hash -2044028112, now seen corresponding path program 1 times [2024-11-24 00:32:51,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:51,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492841679] [2024-11-24 00:32:51,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:51,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:52,743 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2024-11-24 00:32:52,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:52,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492841679] [2024-11-24 00:32:52,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492841679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:52,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:52,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:32:52,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232182547] [2024-11-24 00:32:52,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:52,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:32:52,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:52,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:32:52,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:32:52,749 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) [2024-11-24 00:32:56,766 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 [] [2024-11-24 00:32:58,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:32:58,834 INFO L93 Difference]: Finished difference Result 4105 states and 5924 transitions. [2024-11-24 00:32:58,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:32:58,835 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 [2024-11-24 00:32:58,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:32:58,856 INFO L225 Difference]: With dead ends: 4105 [2024-11-24 00:32:58,857 INFO L226 Difference]: Without dead ends: 2383 [2024-11-24 00:32:58,864 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 [2024-11-24 00:32:58,865 INFO L435 NwaCegarLoop]: 1685 mSDtfsCounter, 1633 mSDsluCounter, 1180 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s 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, 5.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:32:58,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1639 Valid, 2865 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 534 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2024-11-24 00:32:58,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2024-11-24 00:32:59,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2360. [2024-11-24 00:32:59,057 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) [2024-11-24 00:32:59,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 3392 transitions. [2024-11-24 00:32:59,075 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 3392 transitions. Word has length 286 [2024-11-24 00:32:59,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:32:59,076 INFO L471 AbstractCegarLoop]: Abstraction has 2360 states and 3392 transitions. [2024-11-24 00:32:59,078 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) [2024-11-24 00:32:59,081 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 3392 transitions. [2024-11-24 00:32:59,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-24 00:32:59,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:32:59,099 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] [2024-11-24 00:32:59,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:32:59,100 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:32:59,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:32:59,104 INFO L85 PathProgramCache]: Analyzing trace with hash -969738176, now seen corresponding path program 1 times [2024-11-24 00:32:59,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:32:59,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904534563] [2024-11-24 00:32:59,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:32:59,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:32:59,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:32:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2024-11-24 00:32:59,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:32:59,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904534563] [2024-11-24 00:32:59,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904534563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:32:59,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:32:59,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:32:59,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808168145] [2024-11-24 00:32:59,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:32:59,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:32:59,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:32:59,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:32:59,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:32:59,829 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) [2024-11-24 00:33:00,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:00,049 INFO L93 Difference]: Finished difference Result 4674 states and 6756 transitions. [2024-11-24 00:33:00,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:00,049 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 [2024-11-24 00:33:00,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:00,072 INFO L225 Difference]: With dead ends: 4674 [2024-11-24 00:33:00,072 INFO L226 Difference]: Without dead ends: 2360 [2024-11-24 00:33:00,083 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 [2024-11-24 00:33:00,084 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 [2024-11-24 00:33:00,084 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] [2024-11-24 00:33:00,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2024-11-24 00:33:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2360. [2024-11-24 00:33:00,254 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) [2024-11-24 00:33:00,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2360 states to 2360 states and 3383 transitions. [2024-11-24 00:33:00,273 INFO L78 Accepts]: Start accepts. Automaton has 2360 states and 3383 transitions. Word has length 289 [2024-11-24 00:33:00,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:00,274 INFO L471 AbstractCegarLoop]: Abstraction has 2360 states and 3383 transitions. [2024-11-24 00:33:00,275 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) [2024-11-24 00:33:00,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2360 states and 3383 transitions. [2024-11-24 00:33:00,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-24 00:33:00,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:00,292 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] [2024-11-24 00:33:00,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:33:00,293 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:00,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:00,294 INFO L85 PathProgramCache]: Analyzing trace with hash 950629795, now seen corresponding path program 1 times [2024-11-24 00:33:00,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:00,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867689192] [2024-11-24 00:33:00,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:00,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:01,377 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2024-11-24 00:33:01,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:01,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867689192] [2024-11-24 00:33:01,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867689192] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:33:01,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057496369] [2024-11-24 00:33:01,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:01,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:01,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:01,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:33:01,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:33:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:03,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 2115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:33:03,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:33:04,350 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-24 00:33:04,352 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:33:05,166 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2024-11-24 00:33:05,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057496369] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:33:05,166 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:33:05,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 10 [2024-11-24 00:33:05,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071269865] [2024-11-24 00:33:05,166 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:33:05,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:33:05,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:05,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:33:05,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:33:05,169 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) [2024-11-24 00:33:09,188 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 [] [2024-11-24 00:33:13,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:33:17,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:33:21,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:33:25,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:33:29,237 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 [] [2024-11-24 00:33:33,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:33,220 INFO L93 Difference]: Finished difference Result 4166 states and 5999 transitions. [2024-11-24 00:33:33,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:33:33,221 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 [2024-11-24 00:33:33,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:33,244 INFO L225 Difference]: With dead ends: 4166 [2024-11-24 00:33:33,244 INFO L226 Difference]: Without dead ends: 2440 [2024-11-24 00:33:33,253 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 579 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:33:33,253 INFO L435 NwaCegarLoop]: 1684 mSDtfsCounter, 1689 mSDsluCounter, 3573 mSDsCounter, 0 mSdLazyCounter, 1608 mSolverCounterSat, 38 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s 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, 27.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:33,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 5257 Invalid, 1652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1608 Invalid, 6 Unknown, 0 Unchecked, 27.7s Time] [2024-11-24 00:33:33,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2024-11-24 00:33:33,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2367. [2024-11-24 00:33:33,411 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) [2024-11-24 00:33:33,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3392 transitions. [2024-11-24 00:33:33,428 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3392 transitions. Word has length 292 [2024-11-24 00:33:33,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:33,429 INFO L471 AbstractCegarLoop]: Abstraction has 2367 states and 3392 transitions. [2024-11-24 00:33:33,429 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) [2024-11-24 00:33:33,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3392 transitions. [2024-11-24 00:33:33,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-11-24 00:33:33,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:33,447 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] [2024-11-24 00:33:33,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 00:33:33,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:33,648 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:33,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:33,649 INFO L85 PathProgramCache]: Analyzing trace with hash -682619377, now seen corresponding path program 1 times [2024-11-24 00:33:33,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:33,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424240042] [2024-11-24 00:33:33,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:33,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:36,324 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2024-11-24 00:33:36,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:36,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424240042] [2024-11-24 00:33:36,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424240042] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:33:36,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831035079] [2024-11-24 00:33:36,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:36,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:36,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:36,328 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:33:36,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:33:38,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:38,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 2177 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 00:33:38,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:33:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-24 00:33:38,533 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:33:38,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831035079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:38,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:33:38,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-24 00:33:38,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642242878] [2024-11-24 00:33:38,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:38,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:38,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:38,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:38,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:33:38,536 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) [2024-11-24 00:33:38,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:38,691 INFO L93 Difference]: Finished difference Result 4117 states and 5914 transitions. [2024-11-24 00:33:38,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:38,691 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 [2024-11-24 00:33:38,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:38,714 INFO L225 Difference]: With dead ends: 4117 [2024-11-24 00:33:38,715 INFO L226 Difference]: Without dead ends: 2367 [2024-11-24 00:33:38,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:33:38,724 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 [2024-11-24 00:33:38,724 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] [2024-11-24 00:33:38,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2024-11-24 00:33:38,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2367. [2024-11-24 00:33:38,882 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) [2024-11-24 00:33:38,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2367 states to 2367 states and 3389 transitions. [2024-11-24 00:33:38,899 INFO L78 Accepts]: Start accepts. Automaton has 2367 states and 3389 transitions. Word has length 302 [2024-11-24 00:33:38,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:38,900 INFO L471 AbstractCegarLoop]: Abstraction has 2367 states and 3389 transitions. [2024-11-24 00:33:38,901 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) [2024-11-24 00:33:38,901 INFO L276 IsEmpty]: Start isEmpty. Operand 2367 states and 3389 transitions. [2024-11-24 00:33:38,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-24 00:33:38,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:38,919 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] [2024-11-24 00:33:38,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 00:33:39,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:39,120 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:39,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:39,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1365341420, now seen corresponding path program 1 times [2024-11-24 00:33:39,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:39,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842290659] [2024-11-24 00:33:39,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:39,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:41,572 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2024-11-24 00:33:41,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:41,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842290659] [2024-11-24 00:33:41,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842290659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:33:41,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592340815] [2024-11-24 00:33:41,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:41,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:41,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:41,578 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:33:41,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:33:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:43,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 2180 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 00:33:43,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:33:43,362 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-24 00:33:43,362 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:33:43,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592340815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:43,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:33:43,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 9 [2024-11-24 00:33:43,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821461804] [2024-11-24 00:33:43,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:43,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:33:43,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:43,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:33:43,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:33:43,366 INFO L87 Difference]: Start difference. First operand 2367 states and 3389 transitions. Second operand has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 7 states have internal predecessors, (143), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 00:33:43,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:43,870 INFO L93 Difference]: Finished difference Result 4128 states and 5936 transitions. [2024-11-24 00:33:43,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:33:43,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 7 states have internal predecessors, (143), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) Word has length 304 [2024-11-24 00:33:43,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:43,902 INFO L225 Difference]: With dead ends: 4128 [2024-11-24 00:33:43,902 INFO L226 Difference]: Without dead ends: 2387 [2024-11-24 00:33:43,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:33:43,910 INFO L435 NwaCegarLoop]: 1714 mSDtfsCounter, 891 mSDsluCounter, 11907 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 13621 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:43,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 13621 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:43,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2024-11-24 00:33:44,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2385. [2024-11-24 00:33:44,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 1731 states have (on average 1.3720392836510686) internal successors, (2375), 1800 states have internal predecessors, (2375), 513 states have call successors, (513), 134 states have call predecessors, (513), 140 states have return successors, (533), 511 states have call predecessors, (533), 513 states have call successors, (533) [2024-11-24 00:33:44,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3421 transitions. [2024-11-24 00:33:44,079 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3421 transitions. Word has length 304 [2024-11-24 00:33:44,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:44,082 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3421 transitions. [2024-11-24 00:33:44,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 7 states have internal predecessors, (143), 2 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (31), 4 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-24 00:33:44,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3421 transitions. [2024-11-24 00:33:44,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-24 00:33:44,099 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:44,100 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:44,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:33:44,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:44,301 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:44,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:44,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1995711472, now seen corresponding path program 1 times [2024-11-24 00:33:44,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:44,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22310312] [2024-11-24 00:33:44,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:44,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2024-11-24 00:33:45,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:45,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22310312] [2024-11-24 00:33:45,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22310312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:45,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:45,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:33:45,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277987355] [2024-11-24 00:33:45,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:45,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:33:45,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:45,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:33:45,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:33:45,608 INFO L87 Difference]: Start difference. First operand 2385 states and 3421 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-24 00:33:45,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:45,918 INFO L93 Difference]: Finished difference Result 4132 states and 5948 transitions. [2024-11-24 00:33:45,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:33:45,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 310 [2024-11-24 00:33:45,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:45,946 INFO L225 Difference]: With dead ends: 4132 [2024-11-24 00:33:45,947 INFO L226 Difference]: Without dead ends: 2387 [2024-11-24 00:33:45,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:33:45,955 INFO L435 NwaCegarLoop]: 1687 mSDtfsCounter, 0 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5042 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:45,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5042 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:45,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2024-11-24 00:33:46,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2387. [2024-11-24 00:33:46,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 1733 states have (on average 1.3716099249855742) internal successors, (2377), 1802 states have internal predecessors, (2377), 513 states have call successors, (513), 134 states have call predecessors, (513), 140 states have return successors, (533), 511 states have call predecessors, (533), 513 states have call successors, (533) [2024-11-24 00:33:46,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 3423 transitions. [2024-11-24 00:33:46,122 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 3423 transitions. Word has length 310 [2024-11-24 00:33:46,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:46,123 INFO L471 AbstractCegarLoop]: Abstraction has 2387 states and 3423 transitions. [2024-11-24 00:33:46,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-24 00:33:46,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 3423 transitions. [2024-11-24 00:33:46,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-24 00:33:46,139 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:46,139 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:46,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:33:46,140 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:46,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:46,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1861823320, now seen corresponding path program 1 times [2024-11-24 00:33:46,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:46,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737202031] [2024-11-24 00:33:46,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:46,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:46,855 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2024-11-24 00:33:46,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:46,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737202031] [2024-11-24 00:33:46,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737202031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:46,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:46,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:33:46,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130846640] [2024-11-24 00:33:46,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:46,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:33:46,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:46,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:33:46,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:33:46,858 INFO L87 Difference]: Start difference. First operand 2387 states and 3423 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-24 00:33:47,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:47,120 INFO L93 Difference]: Finished difference Result 4136 states and 5953 transitions. [2024-11-24 00:33:47,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:33:47,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 318 [2024-11-24 00:33:47,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:47,155 INFO L225 Difference]: With dead ends: 4136 [2024-11-24 00:33:47,156 INFO L226 Difference]: Without dead ends: 2389 [2024-11-24 00:33:47,167 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 [2024-11-24 00:33:47,168 INFO L435 NwaCegarLoop]: 1687 mSDtfsCounter, 2 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:47,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3359 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:47,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2389 states. [2024-11-24 00:33:47,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2389 to 2389. [2024-11-24 00:33:47,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2389 states, 1735 states have (on average 1.3711815561959655) internal successors, (2379), 1804 states have internal predecessors, (2379), 513 states have call successors, (513), 134 states have call predecessors, (513), 140 states have return successors, (533), 511 states have call predecessors, (533), 513 states have call successors, (533) [2024-11-24 00:33:47,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 3425 transitions. [2024-11-24 00:33:47,417 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 3425 transitions. Word has length 318 [2024-11-24 00:33:47,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:47,419 INFO L471 AbstractCegarLoop]: Abstraction has 2389 states and 3425 transitions. [2024-11-24 00:33:47,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-24 00:33:47,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 3425 transitions. [2024-11-24 00:33:47,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-24 00:33:47,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:47,438 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:47,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:33:47,438 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:47,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:47,439 INFO L85 PathProgramCache]: Analyzing trace with hash -688180658, now seen corresponding path program 1 times [2024-11-24 00:33:47,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:47,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536079975] [2024-11-24 00:33:47,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:33:47,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:33:49,065 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2024-11-24 00:33:49,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:49,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536079975] [2024-11-24 00:33:49,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536079975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:33:49,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:33:49,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:33:49,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810208208] [2024-11-24 00:33:49,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:33:49,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:33:49,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:33:49,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:33:49,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:33:49,068 INFO L87 Difference]: Start difference. First operand 2389 states and 3425 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:33:49,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:33:49,321 INFO L93 Difference]: Finished difference Result 4142 states and 5958 transitions. [2024-11-24 00:33:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:33:49,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 327 [2024-11-24 00:33:49,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:33:49,340 INFO L225 Difference]: With dead ends: 4142 [2024-11-24 00:33:49,341 INFO L226 Difference]: Without dead ends: 2393 [2024-11-24 00:33:49,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:33:49,348 INFO L435 NwaCegarLoop]: 1687 mSDtfsCounter, 2 mSDsluCounter, 6729 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8416 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:33:49,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8416 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:33:49,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2024-11-24 00:33:49,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2392. [2024-11-24 00:33:49,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 1738 states have (on average 1.3705408515535098) internal successors, (2382), 1806 states have internal predecessors, (2382), 513 states have call successors, (513), 134 states have call predecessors, (513), 140 states have return successors, (533), 512 states have call predecessors, (533), 513 states have call successors, (533) [2024-11-24 00:33:49,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3428 transitions. [2024-11-24 00:33:49,506 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3428 transitions. Word has length 327 [2024-11-24 00:33:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:33:49,507 INFO L471 AbstractCegarLoop]: Abstraction has 2392 states and 3428 transitions. [2024-11-24 00:33:49,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (33), 1 states have call predecessors, (33), 2 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-24 00:33:49,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3428 transitions. [2024-11-24 00:33:49,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-24 00:33:49,519 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:33:49,519 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:33:49,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:33:49,520 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:33:49,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:33:49,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1119548466, now seen corresponding path program 2 times [2024-11-24 00:33:49,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:33:49,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286955494] [2024-11-24 00:33:49,522 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:33:49,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:33:51,398 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:33:51,398 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:33:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 504 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 00:33:52,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:33:52,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286955494] [2024-11-24 00:33:52,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286955494] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:33:52,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038920555] [2024-11-24 00:33:52,153 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:33:52,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:33:52,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:33:52,156 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:33:52,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0c3e17d-b3f7-4993-b9ce-d49109a42749/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process