./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/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 --preprocessor.use.memory.slicer false --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b83c28af83745ba79af1b1ebec4b495db7aa2efb3702685bbdc4b86421ef4c0a --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 23:54:08,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 23:54:08,719 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-22 23:54:08,725 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 23:54:08,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 23:54:08,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 23:54:08,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 23:54:08,747 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 23:54:08,747 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 23:54:08,750 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 23:54:08,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 23:54:08,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 23:54:08,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 23:54:08,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 23:54:08,752 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 23:54:08,752 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 23:54:08,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 23:54:08,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 23:54:08,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 23:54:08,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 23:54:08,753 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 23:54:08,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 23:54:08,754 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 23:54:08,754 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 23:54:08,755 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 23:54:08,755 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 23:54:08,755 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 23:54:08,755 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 23:54:08,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:54:08,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 23:54:08,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 23:54:08,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 23:54:08,757 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 23:54:08,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 23:54:08,757 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 23:54:08,757 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 23:54:08,757 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 23:54:08,757 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 23:54:08,757 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 23:54:08,758 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b83c28af83745ba79af1b1ebec4b495db7aa2efb3702685bbdc4b86421ef4c0a Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 23:54:08,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 23:54:08,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 23:54:08,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 23:54:08,975 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 23:54:08,976 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 23:54:08,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-22 23:54:09,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 23:54:10,311 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 23:54:10,311 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-22 23:54:10,342 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9912049/1ee242fad6f84b8db1e04ea52ab3f81d/FLAGdc447e43a [2023-11-22 23:54:10,354 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff9912049/1ee242fad6f84b8db1e04ea52ab3f81d [2023-11-22 23:54:10,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 23:54:10,357 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 23:54:10,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 23:54:10,360 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 23:54:10,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 23:54:10,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:54:10" (1/1) ... [2023-11-22 23:54:10,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1f445c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:10, skipping insertion in model container [2023-11-22 23:54:10,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:54:10" (1/1) ... [2023-11-22 23:54:10,437 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 23:54:11,501 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/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] [2023-11-22 23:54:11,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:54:11,528 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 23:54:11,578 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] [2023-11-22 23:54:11,580 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] [2023-11-22 23:54:11,580 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] [2023-11-22 23:54:11,580 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] [2023-11-22 23:54:11,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4843] [2023-11-22 23:54:11,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4846] [2023-11-22 23:54:11,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4849] [2023-11-22 23:54:11,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4852] [2023-11-22 23:54:11,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5234] [2023-11-22 23:54:11,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5238] [2023-11-22 23:54:11,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5242] [2023-11-22 23:54:11,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5246] [2023-11-22 23:54:11,593 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] [2023-11-22 23:54:11,593 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] [2023-11-22 23:54:11,593 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] [2023-11-22 23:54:11,593 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] [2023-11-22 23:54:11,594 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] [2023-11-22 23:54:11,594 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] [2023-11-22 23:54:11,594 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] [2023-11-22 23:54:11,594 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] [2023-11-22 23:54:11,595 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] [2023-11-22 23:54:11,595 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] [2023-11-22 23:54:11,595 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] [2023-11-22 23:54:11,596 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] [2023-11-22 23:54:11,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5365] [2023-11-22 23:54:11,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5369] [2023-11-22 23:54:11,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5373] [2023-11-22 23:54:11,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5377] [2023-11-22 23:54:11,598 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] [2023-11-22 23:54:11,598 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] [2023-11-22 23:54:11,598 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] [2023-11-22 23:54:11,599 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] [2023-11-22 23:54:11,599 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] [2023-11-22 23:54:11,599 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] [2023-11-22 23:54:11,600 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] [2023-11-22 23:54:11,600 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] [2023-11-22 23:54:11,600 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] [2023-11-22 23:54:11,600 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] [2023-11-22 23:54:11,601 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] [2023-11-22 23:54:11,601 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] [2023-11-22 23:54:11,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5520] [2023-11-22 23:54:11,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5524] [2023-11-22 23:54:11,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5528] [2023-11-22 23:54:11,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5532] [2023-11-22 23:54:11,604 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] [2023-11-22 23:54:11,604 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] [2023-11-22 23:54:11,605 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] [2023-11-22 23:54:11,605 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] [2023-11-22 23:54:11,605 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] [2023-11-22 23:54:11,605 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] [2023-11-22 23:54:11,606 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] [2023-11-22 23:54:11,606 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] [2023-11-22 23:54:11,651 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] [2023-11-22 23:54:11,652 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] [2023-11-22 23:54:11,652 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] [2023-11-22 23:54:11,652 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] [2023-11-22 23:54:11,653 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] [2023-11-22 23:54:11,653 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] [2023-11-22 23:54:11,653 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] [2023-11-22 23:54:11,653 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] [2023-11-22 23:54:11,654 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] [2023-11-22 23:54:11,654 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] [2023-11-22 23:54:11,655 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] [2023-11-22 23:54:11,655 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] [2023-11-22 23:54:11,655 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] [2023-11-22 23:54:11,655 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] [2023-11-22 23:54:11,657 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] [2023-11-22 23:54:11,659 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] [2023-11-22 23:54:11,659 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] [2023-11-22 23:54:11,660 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] [2023-11-22 23:54:11,660 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] [2023-11-22 23:54:11,661 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] [2023-11-22 23:54:11,661 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] [2023-11-22 23:54:11,661 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] [2023-11-22 23:54:11,662 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] [2023-11-22 23:54:11,662 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] [2023-11-22 23:54:11,662 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] [2023-11-22 23:54:11,663 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] [2023-11-22 23:54:11,663 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] [2023-11-22 23:54:11,664 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] [2023-11-22 23:54:11,664 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] [2023-11-22 23:54:11,665 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] [2023-11-22 23:54:11,771 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/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] [2023-11-22 23:54:11,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:54:11,850 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:54:11,850 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:54:11,850 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:54:11,856 INFO L206 MainTranslator]: Completed translation [2023-11-22 23:54:11,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11 WrapperNode [2023-11-22 23:54:11,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 23:54:11,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 23:54:11,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 23:54:11,857 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 23:54:11,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (1/1) ... [2023-11-22 23:54:11,910 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (1/1) ... [2023-11-22 23:54:11,974 INFO L138 Inliner]: procedures = 187, calls = 890, calls flagged for inlining = 93, calls inlined = 91, statements flattened = 3369 [2023-11-22 23:54:11,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 23:54:11,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 23:54:11,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 23:54:11,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 23:54:11,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (1/1) ... [2023-11-22 23:54:11,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (1/1) ... [2023-11-22 23:54:11,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (1/1) ... [2023-11-22 23:54:11,997 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (1/1) ... [2023-11-22 23:54:12,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (1/1) ... [2023-11-22 23:54:12,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (1/1) ... [2023-11-22 23:54:12,094 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (1/1) ... [2023-11-22 23:54:12,107 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (1/1) ... [2023-11-22 23:54:12,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 23:54:12,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 23:54:12,131 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 23:54:12,131 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 23:54:12,132 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (1/1) ... [2023-11-22 23:54:12,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:54:12,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:54:12,154 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 23:54:12,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 23:54:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2023-11-22 23:54:12,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2023-11-22 23:54:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2023-11-22 23:54:12,193 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2023-11-22 23:54:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-22 23:54:12,193 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-22 23:54:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-22 23:54:12,194 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-22 23:54:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-22 23:54:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-22 23:54:12,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-22 23:54:12,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-22 23:54:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 23:54:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-22 23:54:12,195 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-22 23:54:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-22 23:54:12,195 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-22 23:54:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-22 23:54:12,195 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-22 23:54:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2023-11-22 23:54:12,196 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2023-11-22 23:54:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-22 23:54:12,196 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-22 23:54:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-22 23:54:12,196 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-22 23:54:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-22 23:54:12,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-22 23:54:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-22 23:54:12,197 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-22 23:54:12,197 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-22 23:54:12,198 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-22 23:54:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-22 23:54:12,198 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-22 23:54:12,198 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2023-11-22 23:54:12,198 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2023-11-22 23:54:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 23:54:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-22 23:54:12,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-22 23:54:12,199 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-22 23:54:12,199 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-22 23:54:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-22 23:54:12,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-22 23:54:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 23:54:12,200 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 23:54:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-22 23:54:12,200 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-22 23:54:12,200 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-22 23:54:12,201 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-22 23:54:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 23:54:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-22 23:54:12,201 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-22 23:54:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-22 23:54:12,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-22 23:54:12,201 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2023-11-22 23:54:12,201 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2023-11-22 23:54:12,202 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2023-11-22 23:54:12,202 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2023-11-22 23:54:12,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 23:54:12,202 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-22 23:54:12,202 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-22 23:54:12,202 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2023-11-22 23:54:12,203 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2023-11-22 23:54:12,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 23:54:12,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-22 23:54:12,203 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-22 23:54:12,203 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-22 23:54:12,204 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-11-22 23:54:12,206 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-11-22 23:54:12,206 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2023-11-22 23:54:12,206 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2023-11-22 23:54:12,206 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-22 23:54:12,207 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-22 23:54:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2023-11-22 23:54:12,207 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2023-11-22 23:54:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-22 23:54:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-22 23:54:12,208 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-22 23:54:12,213 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-22 23:54:12,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-22 23:54:12,213 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-22 23:54:12,213 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-22 23:54:12,213 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2023-11-22 23:54:12,214 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2023-11-22 23:54:12,214 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2023-11-22 23:54:12,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2023-11-22 23:54:12,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 23:54:12,214 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-22 23:54:12,214 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-22 23:54:12,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-22 23:54:12,214 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2023-11-22 23:54:12,214 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2023-11-22 23:54:12,215 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-22 23:54:12,215 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-22 23:54:12,215 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-22 23:54:12,215 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-22 23:54:12,215 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2023-11-22 23:54:12,215 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2023-11-22 23:54:12,215 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-22 23:54:12,215 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-22 23:54:12,215 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-22 23:54:12,215 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-22 23:54:12,216 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2023-11-22 23:54:12,216 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2023-11-22 23:54:12,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-22 23:54:12,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-22 23:54:12,216 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-22 23:54:12,216 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-22 23:54:12,216 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-22 23:54:12,216 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-22 23:54:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-22 23:54:12,217 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-22 23:54:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-22 23:54:12,217 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-22 23:54:12,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 23:54:12,218 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-22 23:54:12,218 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-22 23:54:12,218 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-11-22 23:54:12,218 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-11-22 23:54:12,218 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-22 23:54:12,218 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-22 23:54:12,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-22 23:54:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 23:54:12,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 23:54:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2023-11-22 23:54:12,219 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2023-11-22 23:54:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-11-22 23:54:12,219 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-11-22 23:54:12,605 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 23:54:12,609 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 23:54:12,765 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-22 23:54:14,376 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 23:54:14,480 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 23:54:14,480 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-22 23:54:14,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:54:14 BoogieIcfgContainer [2023-11-22 23:54:14,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 23:54:14,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 23:54:14,483 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 23:54:14,485 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 23:54:14,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:54:10" (1/3) ... [2023-11-22 23:54:14,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37eaa19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:54:14, skipping insertion in model container [2023-11-22 23:54:14,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:54:11" (2/3) ... [2023-11-22 23:54:14,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37eaa19e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:54:14, skipping insertion in model container [2023-11-22 23:54:14,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:54:14" (3/3) ... [2023-11-22 23:54:14,488 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-22 23:54:14,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 23:54:14,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 23:54:14,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 23:54:14,551 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@6054a1b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 23:54:14,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 23:54:14,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 1043 states, 736 states have (on average 1.5013586956521738) internal successors, (1105), 768 states have internal predecessors, (1105), 252 states have call successors, (252), 54 states have call predecessors, (252), 53 states have return successors, (247), 245 states have call predecessors, (247), 247 states have call successors, (247) [2023-11-22 23:54:14,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-22 23:54:14,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:14,572 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 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] [2023-11-22 23:54:14,572 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:14,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:14,576 INFO L85 PathProgramCache]: Analyzing trace with hash 12133242, now seen corresponding path program 1 times [2023-11-22 23:54:14,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:14,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668439662] [2023-11-22 23:54:14,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:14,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:14,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:14,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:14,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:14,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:14,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:14,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:14,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:14,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:14,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:14,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:14,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:54:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:54:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:54:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:54:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:54:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:54:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:54:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:54:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:54:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-22 23:54:15,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:15,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668439662] [2023-11-22 23:54:15,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668439662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:15,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:15,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 23:54:15,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143186766] [2023-11-22 23:54:15,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:15,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 23:54:15,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:15,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 23:54:15,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:54:15,120 INFO L87 Difference]: Start difference. First operand has 1043 states, 736 states have (on average 1.5013586956521738) internal successors, (1105), 768 states have internal predecessors, (1105), 252 states have call successors, (252), 54 states have call predecessors, (252), 53 states have return successors, (247), 245 states have call predecessors, (247), 247 states have call successors, (247) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-22 23:54:17,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:17,818 INFO L93 Difference]: Finished difference Result 2206 states and 3455 transitions. [2023-11-22 23:54:17,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 23:54:17,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 134 [2023-11-22 23:54:17,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:17,835 INFO L225 Difference]: With dead ends: 2206 [2023-11-22 23:54:17,835 INFO L226 Difference]: Without dead ends: 1127 [2023-11-22 23:54:17,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:54:17,845 INFO L413 NwaCegarLoop]: 985 mSDtfsCounter, 1517 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 1471 mSolverCounterSat, 997 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1574 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 2468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 997 IncrementalHoareTripleChecker+Valid, 1471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:17,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1574 Valid, 2070 Invalid, 2468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [997 Valid, 1471 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-22 23:54:17,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2023-11-22 23:54:17,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1005. [2023-11-22 23:54:17,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 713 states have (on average 1.4894810659186535) internal successors, (1062), 737 states have internal predecessors, (1062), 238 states have call successors, (238), 53 states have call predecessors, (238), 53 states have return successors, (238), 236 states have call predecessors, (238), 238 states have call successors, (238) [2023-11-22 23:54:17,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1538 transitions. [2023-11-22 23:54:17,935 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1538 transitions. Word has length 134 [2023-11-22 23:54:17,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:17,936 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1538 transitions. [2023-11-22 23:54:17,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-22 23:54:17,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1538 transitions. [2023-11-22 23:54:17,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-22 23:54:17,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:17,940 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 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] [2023-11-22 23:54:17,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 23:54:17,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:17,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:17,941 INFO L85 PathProgramCache]: Analyzing trace with hash -447188604, now seen corresponding path program 1 times [2023-11-22 23:54:17,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:17,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253554093] [2023-11-22 23:54:17,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:17,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:18,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:18,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:54:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:54:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:54:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:54:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:54:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:54:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:54:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:54:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:54:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:18,194 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2023-11-22 23:54:18,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:18,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253554093] [2023-11-22 23:54:18,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253554093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:18,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:18,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:54:18,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123534817] [2023-11-22 23:54:18,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:18,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:54:18,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:18,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:54:18,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:54:18,197 INFO L87 Difference]: Start difference. First operand 1005 states and 1538 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-22 23:54:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:22,625 INFO L93 Difference]: Finished difference Result 2726 states and 4191 transitions. [2023-11-22 23:54:22,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 23:54:22,626 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (16), 5 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 134 [2023-11-22 23:54:22,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:22,634 INFO L225 Difference]: With dead ends: 2726 [2023-11-22 23:54:22,634 INFO L226 Difference]: Without dead ends: 1753 [2023-11-22 23:54:22,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:54:22,637 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 3654 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 2162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3801 SdHoareTripleChecker+Valid, 2636 SdHoareTripleChecker+Invalid, 4361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2162 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:22,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3801 Valid, 2636 Invalid, 4361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2162 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-22 23:54:22,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2023-11-22 23:54:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1535. [2023-11-22 23:54:22,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1075 states have (on average 1.4697674418604652) internal successors, (1580), 1108 states have internal predecessors, (1580), 366 states have call successors, (366), 93 states have call predecessors, (366), 93 states have return successors, (366), 363 states have call predecessors, (366), 366 states have call successors, (366) [2023-11-22 23:54:22,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2312 transitions. [2023-11-22 23:54:22,694 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2312 transitions. Word has length 134 [2023-11-22 23:54:22,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:22,695 INFO L495 AbstractCegarLoop]: Abstraction has 1535 states and 2312 transitions. [2023-11-22 23:54:22,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2023-11-22 23:54:22,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2312 transitions. [2023-11-22 23:54:22,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-11-22 23:54:22,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:22,700 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-22 23:54:22,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 23:54:22,700 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:22,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:22,701 INFO L85 PathProgramCache]: Analyzing trace with hash -634109549, now seen corresponding path program 1 times [2023-11-22 23:54:22,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:22,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036766220] [2023-11-22 23:54:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:22,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:54:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:54:22,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:22,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:54:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:54:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:22,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:54:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:54:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:54:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:54:23,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:54:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:54:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:54:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:54:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:54:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:54:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:54:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:23,076 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2023-11-22 23:54:23,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:23,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036766220] [2023-11-22 23:54:23,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036766220] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:23,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:23,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:54:23,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258610077] [2023-11-22 23:54:23,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:23,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:54:23,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:23,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:54:23,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:54:23,079 INFO L87 Difference]: Start difference. First operand 1535 states and 2312 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-22 23:54:26,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:26,011 INFO L93 Difference]: Finished difference Result 3248 states and 4956 transitions. [2023-11-22 23:54:26,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 23:54:26,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 5 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 200 [2023-11-22 23:54:26,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:26,019 INFO L225 Difference]: With dead ends: 3248 [2023-11-22 23:54:26,019 INFO L226 Difference]: Without dead ends: 1753 [2023-11-22 23:54:26,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:54:26,024 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 3152 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 1370 mSolverCounterSat, 1535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1535 IncrementalHoareTripleChecker+Valid, 1370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:26,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3294 Valid, 1872 Invalid, 2905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1535 Valid, 1370 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-22 23:54:26,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1753 states. [2023-11-22 23:54:26,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1753 to 1535. [2023-11-22 23:54:26,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 1075 states have (on average 1.4679069767441861) internal successors, (1578), 1108 states have internal predecessors, (1578), 366 states have call successors, (366), 93 states have call predecessors, (366), 93 states have return successors, (366), 363 states have call predecessors, (366), 366 states have call successors, (366) [2023-11-22 23:54:26,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2310 transitions. [2023-11-22 23:54:26,105 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2310 transitions. Word has length 200 [2023-11-22 23:54:26,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:26,106 INFO L495 AbstractCegarLoop]: Abstraction has 1535 states and 2310 transitions. [2023-11-22 23:54:26,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-22 23:54:26,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2310 transitions. [2023-11-22 23:54:26,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-11-22 23:54:26,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:26,110 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-22 23:54:26,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 23:54:26,111 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:26,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:26,112 INFO L85 PathProgramCache]: Analyzing trace with hash 253113297, now seen corresponding path program 1 times [2023-11-22 23:54:26,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:26,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588885122] [2023-11-22 23:54:26,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:26,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:54:26,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:54:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:26,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:54:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:54:26,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:54:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:54:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:54:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:54:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:54:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:54:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:54:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:54:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:54:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:54:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:54:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:26,530 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2023-11-22 23:54:26,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:26,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588885122] [2023-11-22 23:54:26,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588885122] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:26,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:26,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 23:54:26,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072104548] [2023-11-22 23:54:26,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:26,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 23:54:26,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:26,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 23:54:26,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:54:26,532 INFO L87 Difference]: Start difference. First operand 1535 states and 2310 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-22 23:54:28,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:31,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:34,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:34,596 INFO L93 Difference]: Finished difference Result 2227 states and 3523 transitions. [2023-11-22 23:54:34,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:54:34,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (23), 5 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 200 [2023-11-22 23:54:34,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:34,605 INFO L225 Difference]: With dead ends: 2227 [2023-11-22 23:54:34,606 INFO L226 Difference]: Without dead ends: 2225 [2023-11-22 23:54:34,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:54:34,607 INFO L413 NwaCegarLoop]: 1376 mSDtfsCounter, 1360 mSDsluCounter, 4968 mSDsCounter, 0 mSdLazyCounter, 4499 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 6344 SdHoareTripleChecker+Invalid, 5120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 4499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:34,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 6344 Invalid, 5120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 4499 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-11-22 23:54:34,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2023-11-22 23:54:34,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 1537. [2023-11-22 23:54:34,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1077 states have (on average 1.4670380687093778) internal successors, (1580), 1110 states have internal predecessors, (1580), 366 states have call successors, (366), 93 states have call predecessors, (366), 93 states have return successors, (366), 363 states have call predecessors, (366), 366 states have call successors, (366) [2023-11-22 23:54:34,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2312 transitions. [2023-11-22 23:54:34,659 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2312 transitions. Word has length 200 [2023-11-22 23:54:34,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:34,660 INFO L495 AbstractCegarLoop]: Abstraction has 1537 states and 2312 transitions. [2023-11-22 23:54:34,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-22 23:54:34,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2312 transitions. [2023-11-22 23:54:34,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-11-22 23:54:34,664 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:34,665 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-22 23:54:34,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 23:54:34,665 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:34,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:34,666 INFO L85 PathProgramCache]: Analyzing trace with hash -303095329, now seen corresponding path program 1 times [2023-11-22 23:54:34,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:34,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477767267] [2023-11-22 23:54:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:34,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:34,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:34,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:34,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:34,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:54:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:54:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:34,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:54:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:34,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:54:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:54:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:54:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:54:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:54:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:54:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:54:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:54:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:54:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:54:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:54:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:54:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:35,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-11-22 23:54:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:35,082 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2023-11-22 23:54:35,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:35,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477767267] [2023-11-22 23:54:35,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477767267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:35,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:35,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 23:54:35,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145649189] [2023-11-22 23:54:35,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:35,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 23:54:35,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:35,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 23:54:35,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:54:35,084 INFO L87 Difference]: Start difference. First operand 1537 states and 2312 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-22 23:54:37,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:38,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:40,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:40,661 INFO L93 Difference]: Finished difference Result 3261 states and 4971 transitions. [2023-11-22 23:54:40,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:54:40,661 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (24), 5 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 209 [2023-11-22 23:54:40,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:40,669 INFO L225 Difference]: With dead ends: 3261 [2023-11-22 23:54:40,669 INFO L226 Difference]: Without dead ends: 1764 [2023-11-22 23:54:40,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:54:40,677 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 2717 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 2463 mSolverCounterSat, 1236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2857 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 3699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1236 IncrementalHoareTripleChecker+Valid, 2463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:40,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2857 Valid, 2542 Invalid, 3699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1236 Valid, 2463 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-22 23:54:40,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2023-11-22 23:54:40,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 1538. [2023-11-22 23:54:40,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1538 states, 1078 states have (on average 1.466604823747681) internal successors, (1581), 1111 states have internal predecessors, (1581), 366 states have call successors, (366), 93 states have call predecessors, (366), 93 states have return successors, (366), 363 states have call predecessors, (366), 366 states have call successors, (366) [2023-11-22 23:54:40,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2313 transitions. [2023-11-22 23:54:40,785 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2313 transitions. Word has length 209 [2023-11-22 23:54:40,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:40,785 INFO L495 AbstractCegarLoop]: Abstraction has 1538 states and 2313 transitions. [2023-11-22 23:54:40,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-11-22 23:54:40,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2313 transitions. [2023-11-22 23:54:40,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-22 23:54:40,790 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:40,790 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-22 23:54:40,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 23:54:40,790 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:40,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:40,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1920175809, now seen corresponding path program 1 times [2023-11-22 23:54:40,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:40,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717111265] [2023-11-22 23:54:40,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:40,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:54:41,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:54:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:54:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:41,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:54:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:54:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:54:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:54:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:54:41,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:54:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:54:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:54:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:54:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:54:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:54:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:54:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:41,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 23:54:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:41,221 INFO L134 CoverageAnalysis]: Checked inductivity of 337 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2023-11-22 23:54:41,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:41,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717111265] [2023-11-22 23:54:41,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717111265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:41,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:41,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-22 23:54:41,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335329127] [2023-11-22 23:54:41,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:41,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-22 23:54:41,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:41,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-22 23:54:41,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-22 23:54:41,224 INFO L87 Difference]: Start difference. First operand 1538 states and 2313 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-22 23:54:44,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:48,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:48,761 INFO L93 Difference]: Finished difference Result 2243 states and 3545 transitions. [2023-11-22 23:54:48,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 23:54:48,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (24), 5 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 210 [2023-11-22 23:54:48,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:48,770 INFO L225 Difference]: With dead ends: 2243 [2023-11-22 23:54:48,770 INFO L226 Difference]: Without dead ends: 2241 [2023-11-22 23:54:48,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-11-22 23:54:48,771 INFO L413 NwaCegarLoop]: 1353 mSDtfsCounter, 1585 mSDsluCounter, 5331 mSDsCounter, 0 mSdLazyCounter, 4809 mSolverCounterSat, 667 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 6684 SdHoareTripleChecker+Invalid, 5477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 667 IncrementalHoareTripleChecker+Valid, 4809 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:48,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1772 Valid, 6684 Invalid, 5477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [667 Valid, 4809 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2023-11-22 23:54:48,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2023-11-22 23:54:48,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1540. [2023-11-22 23:54:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1540 states, 1079 states have (on average 1.4661723818350325) internal successors, (1582), 1111 states have internal predecessors, (1582), 367 states have call successors, (367), 93 states have call predecessors, (367), 93 states have return successors, (367), 364 states have call predecessors, (367), 367 states have call successors, (367) [2023-11-22 23:54:48,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 2316 transitions. [2023-11-22 23:54:48,823 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 2316 transitions. Word has length 210 [2023-11-22 23:54:48,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:48,824 INFO L495 AbstractCegarLoop]: Abstraction has 1540 states and 2316 transitions. [2023-11-22 23:54:48,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 5 states have internal predecessors, (73), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-22 23:54:48,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 2316 transitions. [2023-11-22 23:54:48,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-11-22 23:54:48,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:48,829 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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] [2023-11-22 23:54:48,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 23:54:48,830 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:48,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:48,830 INFO L85 PathProgramCache]: Analyzing trace with hash 977739443, now seen corresponding path program 1 times [2023-11-22 23:54:48,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:48,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026614061] [2023-11-22 23:54:48,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:48,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:48,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:48,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:48,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:48,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:48,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:48,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:48,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:48,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:48,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:48,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:54:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:54:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:49,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:54:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:49,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:54:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:54:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:54:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:54:49,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:54:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:54:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:54:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:54:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:54:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:54:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:49,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:54:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:49,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:54:49,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 23:54:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-22 23:54:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-22 23:54:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-22 23:54:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 23:54:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:49,130 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2023-11-22 23:54:49,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:49,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026614061] [2023-11-22 23:54:49,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026614061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:49,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:49,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:54:49,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557765717] [2023-11-22 23:54:49,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:49,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:54:49,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:49,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:54:49,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:54:49,132 INFO L87 Difference]: Start difference. First operand 1540 states and 2316 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-22 23:54:54,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:54:57,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:54:57,717 INFO L93 Difference]: Finished difference Result 4939 states and 7542 transitions. [2023-11-22 23:54:57,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 23:54:57,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (28), 5 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 238 [2023-11-22 23:54:57,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:54:57,730 INFO L225 Difference]: With dead ends: 4939 [2023-11-22 23:54:57,731 INFO L226 Difference]: Without dead ends: 3439 [2023-11-22 23:54:57,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:54:57,736 INFO L413 NwaCegarLoop]: 1368 mSDtfsCounter, 2776 mSDsluCounter, 2824 mSDsCounter, 0 mSdLazyCounter, 3595 mSolverCounterSat, 1130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 4192 SdHoareTripleChecker+Invalid, 4725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1130 IncrementalHoareTripleChecker+Valid, 3595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-22 23:54:57,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2975 Valid, 4192 Invalid, 4725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1130 Valid, 3595 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-22 23:54:57,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2023-11-22 23:54:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 3001. [2023-11-22 23:54:57,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3001 states, 2111 states have (on average 1.4703931785883468) internal successors, (3104), 2175 states have internal predecessors, (3104), 706 states have call successors, (706), 183 states have call predecessors, (706), 183 states have return successors, (706), 698 states have call predecessors, (706), 706 states have call successors, (706) [2023-11-22 23:54:57,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 4516 transitions. [2023-11-22 23:54:57,871 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 4516 transitions. Word has length 238 [2023-11-22 23:54:57,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:54:57,872 INFO L495 AbstractCegarLoop]: Abstraction has 3001 states and 4516 transitions. [2023-11-22 23:54:57,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-22 23:54:57,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 4516 transitions. [2023-11-22 23:54:57,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-22 23:54:57,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:54:57,884 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 3, 3, 3, 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] [2023-11-22 23:54:57,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 23:54:57,884 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:54:57,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:54:57,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2119849601, now seen corresponding path program 1 times [2023-11-22 23:54:57,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:54:57,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149521148] [2023-11-22 23:54:57,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:54:57,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:54:57,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:54:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:54:58,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:54:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:54:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:54:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:54:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:54:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:54:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:54:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:54:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:54:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:54:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:54:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:54:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:54:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:54:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:54:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-22 23:54:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-22 23:54:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-22 23:54:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:54:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:54:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-11-22 23:54:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-22 23:54:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-11-22 23:54:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-22 23:54:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 23:54:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:54:58,229 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2023-11-22 23:54:58,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:54:58,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149521148] [2023-11-22 23:54:58,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149521148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:54:58,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:54:58,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 23:54:58,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153897746] [2023-11-22 23:54:58,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:54:58,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 23:54:58,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:54:58,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 23:54:58,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:54:58,232 INFO L87 Difference]: Start difference. First operand 3001 states and 4516 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-22 23:54:59,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:55:03,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:03,834 INFO L93 Difference]: Finished difference Result 5331 states and 8079 transitions. [2023-11-22 23:55:03,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:55:03,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (29), 5 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 240 [2023-11-22 23:55:03,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:03,846 INFO L225 Difference]: With dead ends: 5331 [2023-11-22 23:55:03,846 INFO L226 Difference]: Without dead ends: 2360 [2023-11-22 23:55:03,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:55:03,855 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 1475 mSDsluCounter, 2996 mSDsCounter, 0 mSdLazyCounter, 3539 mSolverCounterSat, 886 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 3922 SdHoareTripleChecker+Invalid, 4425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 886 IncrementalHoareTripleChecker+Valid, 3539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:03,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 3922 Invalid, 4425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [886 Valid, 3539 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-22 23:55:03,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2023-11-22 23:55:03,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 2046. [2023-11-22 23:55:03,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 1426 states have (on average 1.4572230014025245) internal successors, (2078), 1467 states have internal predecessors, (2078), 488 states have call successors, (488), 131 states have call predecessors, (488), 131 states have return successors, (488), 483 states have call predecessors, (488), 488 states have call successors, (488) [2023-11-22 23:55:03,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 3054 transitions. [2023-11-22 23:55:03,957 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 3054 transitions. Word has length 240 [2023-11-22 23:55:03,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:03,957 INFO L495 AbstractCegarLoop]: Abstraction has 2046 states and 3054 transitions. [2023-11-22 23:55:03,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (29), 5 states have call predecessors, (29), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-22 23:55:03,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 3054 transitions. [2023-11-22 23:55:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2023-11-22 23:55:03,966 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:03,966 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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] [2023-11-22 23:55:03,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 23:55:03,966 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:03,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:03,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1295365703, now seen corresponding path program 1 times [2023-11-22 23:55:03,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:03,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845766498] [2023-11-22 23:55:03,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:03,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:04,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:55:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:55:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:04,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:55:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:55:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:55:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:55:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:55:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:55:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:55:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:55:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:55:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:55:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:55:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:55:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:55:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 23:55:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-11-22 23:55:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-11-22 23:55:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-22 23:55:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 23:55:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:04,441 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-11-22 23:55:04,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:04,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845766498] [2023-11-22 23:55:04,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845766498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:55:04,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:55:04,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 23:55:04,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049019817] [2023-11-22 23:55:04,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:55:04,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 23:55:04,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:04,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 23:55:04,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:55:04,444 INFO L87 Difference]: Start difference. First operand 2046 states and 3054 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-22 23:55:07,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:55:10,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:10,623 INFO L93 Difference]: Finished difference Result 3876 states and 5891 transitions. [2023-11-22 23:55:10,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:55:10,629 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (28), 5 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 240 [2023-11-22 23:55:10,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:10,638 INFO L225 Difference]: With dead ends: 3876 [2023-11-22 23:55:10,638 INFO L226 Difference]: Without dead ends: 2380 [2023-11-22 23:55:10,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:55:10,642 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 2241 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 3279 mSolverCounterSat, 930 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2386 SdHoareTripleChecker+Valid, 3337 SdHoareTripleChecker+Invalid, 4209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 930 IncrementalHoareTripleChecker+Valid, 3279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:10,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2386 Valid, 3337 Invalid, 4209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [930 Valid, 3279 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-22 23:55:10,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2380 states. [2023-11-22 23:55:10,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2049. [2023-11-22 23:55:10,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1429 states have (on average 1.456962911126662) internal successors, (2082), 1470 states have internal predecessors, (2082), 488 states have call successors, (488), 131 states have call predecessors, (488), 131 states have return successors, (488), 483 states have call predecessors, (488), 488 states have call successors, (488) [2023-11-22 23:55:10,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 3058 transitions. [2023-11-22 23:55:10,734 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 3058 transitions. Word has length 240 [2023-11-22 23:55:10,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:10,736 INFO L495 AbstractCegarLoop]: Abstraction has 2049 states and 3058 transitions. [2023-11-22 23:55:10,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-11-22 23:55:10,736 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 3058 transitions. [2023-11-22 23:55:10,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2023-11-22 23:55:10,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:10,743 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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] [2023-11-22 23:55:10,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-22 23:55:10,744 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:10,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:10,744 INFO L85 PathProgramCache]: Analyzing trace with hash 595937427, now seen corresponding path program 1 times [2023-11-22 23:55:10,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:10,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711500190] [2023-11-22 23:55:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:10,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:10,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:55:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:55:10,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:55:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:55:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:55:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:55:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:55:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:55:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:55:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:55:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:55:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:55:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:55:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:10,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:55:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:55:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 23:55:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-22 23:55:10,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-11-22 23:55:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-11-22 23:55:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-22 23:55:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:10,999 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2023-11-22 23:55:11,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:11,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711500190] [2023-11-22 23:55:11,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711500190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:55:11,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:55:11,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:55:11,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146042423] [2023-11-22 23:55:11,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:55:11,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:55:11,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:11,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:55:11,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:55:11,002 INFO L87 Difference]: Start difference. First operand 2049 states and 3058 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-22 23:55:13,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:55:15,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:55:17,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:17,696 INFO L93 Difference]: Finished difference Result 4375 states and 6647 transitions. [2023-11-22 23:55:17,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 23:55:17,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (28), 5 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 242 [2023-11-22 23:55:17,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:17,705 INFO L225 Difference]: With dead ends: 4375 [2023-11-22 23:55:17,705 INFO L226 Difference]: Without dead ends: 2366 [2023-11-22 23:55:17,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-22 23:55:17,711 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 1017 mSDsluCounter, 2645 mSDsCounter, 0 mSdLazyCounter, 3024 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 3571 SdHoareTripleChecker+Invalid, 3641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 3024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:17,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 3571 Invalid, 3641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [617 Valid, 3024 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-22 23:55:17,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2023-11-22 23:55:17,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2049. [2023-11-22 23:55:17,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1429 states have (on average 1.4506648005598322) internal successors, (2073), 1470 states have internal predecessors, (2073), 488 states have call successors, (488), 131 states have call predecessors, (488), 131 states have return successors, (488), 483 states have call predecessors, (488), 488 states have call successors, (488) [2023-11-22 23:55:17,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 3049 transitions. [2023-11-22 23:55:17,816 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 3049 transitions. Word has length 242 [2023-11-22 23:55:17,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:17,816 INFO L495 AbstractCegarLoop]: Abstraction has 2049 states and 3049 transitions. [2023-11-22 23:55:17,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-22 23:55:17,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 3049 transitions. [2023-11-22 23:55:17,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-11-22 23:55:17,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:17,825 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 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] [2023-11-22 23:55:17,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-22 23:55:17,825 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:17,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:17,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1759226607, now seen corresponding path program 1 times [2023-11-22 23:55:17,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:17,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607483212] [2023-11-22 23:55:17,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:17,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:55:18,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:55:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:55:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:18,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:55:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:55:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:55:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:55:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:55:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:55:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:55:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:55:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:55:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:55:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:55:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:18,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:55:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 23:55:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-22 23:55:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-11-22 23:55:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 23:55:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-11-22 23:55:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-11-22 23:55:18,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:18,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607483212] [2023-11-22 23:55:18,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607483212] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:55:18,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231522051] [2023-11-22 23:55:18,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:18,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:18,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:55:18,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:55:18,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 23:55:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:18,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 23:55:18,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:55:19,114 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2023-11-22 23:55:19,114 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 23:55:19,339 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-11-22 23:55:19,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231522051] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 23:55:19,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 23:55:19,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 5] total 14 [2023-11-22 23:55:19,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821505213] [2023-11-22 23:55:19,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 23:55:19,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-22 23:55:19,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:19,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-22 23:55:19,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2023-11-22 23:55:19,342 INFO L87 Difference]: Start difference. First operand 2049 states and 3049 transitions. Second operand has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 10 states have internal predecessors, (193), 4 states have call successors, (79), 7 states have call predecessors, (79), 3 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2023-11-22 23:55:23,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:55:27,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:27,323 INFO L93 Difference]: Finished difference Result 3922 states and 5951 transitions. [2023-11-22 23:55:27,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-22 23:55:27,323 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 10 states have internal predecessors, (193), 4 states have call successors, (79), 7 states have call predecessors, (79), 3 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) Word has length 245 [2023-11-22 23:55:27,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:27,332 INFO L225 Difference]: With dead ends: 3922 [2023-11-22 23:55:27,332 INFO L226 Difference]: Without dead ends: 2423 [2023-11-22 23:55:27,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2023-11-22 23:55:27,337 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 3292 mSDsluCounter, 3689 mSDsCounter, 0 mSdLazyCounter, 5384 mSolverCounterSat, 1490 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3436 SdHoareTripleChecker+Valid, 4607 SdHoareTripleChecker+Invalid, 6875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1490 IncrementalHoareTripleChecker+Valid, 5384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:27,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3436 Valid, 4607 Invalid, 6875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1490 Valid, 5384 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2023-11-22 23:55:27,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2423 states. [2023-11-22 23:55:27,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2423 to 2054. [2023-11-22 23:55:27,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2054 states, 1434 states have (on average 1.4504881450488145) internal successors, (2080), 1475 states have internal predecessors, (2080), 488 states have call successors, (488), 131 states have call predecessors, (488), 131 states have return successors, (488), 483 states have call predecessors, (488), 488 states have call successors, (488) [2023-11-22 23:55:27,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 3056 transitions. [2023-11-22 23:55:27,431 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 3056 transitions. Word has length 245 [2023-11-22 23:55:27,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:27,431 INFO L495 AbstractCegarLoop]: Abstraction has 2054 states and 3056 transitions. [2023-11-22 23:55:27,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 10 states have internal predecessors, (193), 4 states have call successors, (79), 7 states have call predecessors, (79), 3 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2023-11-22 23:55:27,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 3056 transitions. [2023-11-22 23:55:27,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-22 23:55:27,439 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:27,439 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 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] [2023-11-22 23:55:27,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-22 23:55:27,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-22 23:55:27,653 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:27,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:27,653 INFO L85 PathProgramCache]: Analyzing trace with hash 489757891, now seen corresponding path program 2 times [2023-11-22 23:55:27,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:27,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150634144] [2023-11-22 23:55:27,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:27,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:27,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:55:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:55:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:55:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:28,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:28,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:55:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:55:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:55:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:55:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:55:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:55:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:55:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:55:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:55:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:55:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:55:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:55:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:28,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 23:55:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-22 23:55:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-11-22 23:55:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 23:55:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-11-22 23:55:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:28,148 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-11-22 23:55:28,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:28,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150634144] [2023-11-22 23:55:28,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150634144] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:55:28,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567997191] [2023-11-22 23:55:28,149 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 23:55:28,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:28,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:55:28,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:55:28,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 23:55:28,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 23:55:28,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 23:55:28,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 1859 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-22 23:55:28,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:55:29,048 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2023-11-22 23:55:29,048 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 23:55:29,279 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2023-11-22 23:55:29,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567997191] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 23:55:29,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 23:55:29,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 8] total 23 [2023-11-22 23:55:29,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997329502] [2023-11-22 23:55:29,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 23:55:29,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-22 23:55:29,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:29,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-22 23:55:29,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2023-11-22 23:55:29,282 INFO L87 Difference]: Start difference. First operand 2054 states and 3056 transitions. Second operand has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 19 states have internal predecessors, (211), 4 states have call successors, (79), 7 states have call predecessors, (79), 3 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2023-11-22 23:55:33,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:55:38,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:38,439 INFO L93 Difference]: Finished difference Result 4047 states and 6150 transitions. [2023-11-22 23:55:38,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-22 23:55:38,440 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 19 states have internal predecessors, (211), 4 states have call successors, (79), 7 states have call predecessors, (79), 3 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) Word has length 251 [2023-11-22 23:55:38,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:38,448 INFO L225 Difference]: With dead ends: 4047 [2023-11-22 23:55:38,448 INFO L226 Difference]: Without dead ends: 2543 [2023-11-22 23:55:38,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=254, Invalid=676, Unknown=0, NotChecked=0, Total=930 [2023-11-22 23:55:38,452 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 3662 mSDsluCounter, 5181 mSDsCounter, 0 mSdLazyCounter, 8197 mSolverCounterSat, 1627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3826 SdHoareTripleChecker+Valid, 6106 SdHoareTripleChecker+Invalid, 9824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1627 IncrementalHoareTripleChecker+Valid, 8197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:38,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3826 Valid, 6106 Invalid, 9824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1627 Valid, 8197 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2023-11-22 23:55:38,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2543 states. [2023-11-22 23:55:38,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2543 to 2066. [2023-11-22 23:55:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2066 states, 1446 states have (on average 1.4508990318118948) internal successors, (2098), 1487 states have internal predecessors, (2098), 488 states have call successors, (488), 131 states have call predecessors, (488), 131 states have return successors, (488), 483 states have call predecessors, (488), 488 states have call successors, (488) [2023-11-22 23:55:38,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 3074 transitions. [2023-11-22 23:55:38,554 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 3074 transitions. Word has length 251 [2023-11-22 23:55:38,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:38,555 INFO L495 AbstractCegarLoop]: Abstraction has 2066 states and 3074 transitions. [2023-11-22 23:55:38,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.173913043478262) internal successors, (211), 19 states have internal predecessors, (211), 4 states have call successors, (79), 7 states have call predecessors, (79), 3 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2023-11-22 23:55:38,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 3074 transitions. [2023-11-22 23:55:38,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2023-11-22 23:55:38,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:38,563 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 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] [2023-11-22 23:55:38,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-22 23:55:38,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-22 23:55:38,772 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:38,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:38,772 INFO L85 PathProgramCache]: Analyzing trace with hash -253480375, now seen corresponding path program 1 times [2023-11-22 23:55:38,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:38,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781502151] [2023-11-22 23:55:38,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:38,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:55:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:55:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:55:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:55:39,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:55:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:55:39,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:55:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:55:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:55:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:55:39,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:55:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:55:39,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:55:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:39,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:55:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:55:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-11-22 23:55:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2023-11-22 23:55:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-22 23:55:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2023-11-22 23:55:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-22 23:55:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-11-22 23:55:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2023-11-22 23:55:39,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:39,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781502151] [2023-11-22 23:55:39,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781502151] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:55:39,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052862287] [2023-11-22 23:55:39,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:39,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:39,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:55:39,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:55:39,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 23:55:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:40,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 23:55:40,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:55:40,276 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2023-11-22 23:55:40,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:55:40,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052862287] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:55:40,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:55:40,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2023-11-22 23:55:40,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073559150] [2023-11-22 23:55:40,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:55:40,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 23:55:40,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:40,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 23:55:40,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-22 23:55:40,281 INFO L87 Difference]: Start difference. First operand 2066 states and 3074 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2023-11-22 23:55:41,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:41,544 INFO L93 Difference]: Finished difference Result 3597 states and 5366 transitions. [2023-11-22 23:55:41,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 23:55:41,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 253 [2023-11-22 23:55:41,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:41,558 INFO L225 Difference]: With dead ends: 3597 [2023-11-22 23:55:41,558 INFO L226 Difference]: Without dead ends: 2066 [2023-11-22 23:55:41,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-22 23:55:41,562 INFO L413 NwaCegarLoop]: 1418 mSDtfsCounter, 2 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:41,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2834 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-22 23:55:41,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2023-11-22 23:55:41,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 2066. [2023-11-22 23:55:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2066 states, 1446 states have (on average 1.4488243430152143) internal successors, (2095), 1487 states have internal predecessors, (2095), 488 states have call successors, (488), 131 states have call predecessors, (488), 131 states have return successors, (488), 483 states have call predecessors, (488), 488 states have call successors, (488) [2023-11-22 23:55:41,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 3071 transitions. [2023-11-22 23:55:41,649 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 3071 transitions. Word has length 253 [2023-11-22 23:55:41,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:41,650 INFO L495 AbstractCegarLoop]: Abstraction has 2066 states and 3071 transitions. [2023-11-22 23:55:41,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2023-11-22 23:55:41,650 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 3071 transitions. [2023-11-22 23:55:41,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2023-11-22 23:55:41,658 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:41,658 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 3, 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] [2023-11-22 23:55:41,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-22 23:55:41,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:41,874 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:41,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:41,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1967766683, now seen corresponding path program 1 times [2023-11-22 23:55:41,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:41,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694192152] [2023-11-22 23:55:41,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:41,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:41,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:55:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:55:42,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:55:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:55:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:55:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:55:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:55:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:55:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:55:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:55:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:55:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:55:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:55:42,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-22 23:55:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:42,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 23:55:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:42,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 23:55:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-22 23:55:42,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-11-22 23:55:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 23:55:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-11-22 23:55:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-22 23:55:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2023-11-22 23:55:42,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:42,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694192152] [2023-11-22 23:55:42,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694192152] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:55:42,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673843864] [2023-11-22 23:55:42,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:42,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:42,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:55:42,688 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:55:42,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-22 23:55:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:43,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 1899 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-22 23:55:43,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:55:43,300 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2023-11-22 23:55:43,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:55:43,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673843864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:55:43,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:55:43,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2023-11-22 23:55:43,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529562729] [2023-11-22 23:55:43,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:55:43,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 23:55:43,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:43,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 23:55:43,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-22 23:55:43,302 INFO L87 Difference]: Start difference. First operand 2066 states and 3071 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-22 23:55:45,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:45,163 INFO L93 Difference]: Finished difference Result 4073 states and 6149 transitions. [2023-11-22 23:55:45,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 23:55:45,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 254 [2023-11-22 23:55:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:45,178 INFO L225 Difference]: With dead ends: 4073 [2023-11-22 23:55:45,179 INFO L226 Difference]: Without dead ends: 2557 [2023-11-22 23:55:45,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-22 23:55:45,184 INFO L413 NwaCegarLoop]: 1822 mSDtfsCounter, 362 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 5108 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:45,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 5108 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-22 23:55:45,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2023-11-22 23:55:45,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2068. [2023-11-22 23:55:45,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2068 states, 1448 states have (on average 1.4482044198895028) internal successors, (2097), 1489 states have internal predecessors, (2097), 488 states have call successors, (488), 131 states have call predecessors, (488), 131 states have return successors, (488), 483 states have call predecessors, (488), 488 states have call successors, (488) [2023-11-22 23:55:45,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 3073 transitions. [2023-11-22 23:55:45,315 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 3073 transitions. Word has length 254 [2023-11-22 23:55:45,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:45,315 INFO L495 AbstractCegarLoop]: Abstraction has 2068 states and 3073 transitions. [2023-11-22 23:55:45,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2023-11-22 23:55:45,315 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 3073 transitions. [2023-11-22 23:55:45,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-11-22 23:55:45,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:45,322 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-22 23:55:45,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-22 23:55:45,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:45,537 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:45,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:45,537 INFO L85 PathProgramCache]: Analyzing trace with hash 465959101, now seen corresponding path program 1 times [2023-11-22 23:55:45,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:45,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657066052] [2023-11-22 23:55:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:45,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:45,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:45,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:55:45,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:55:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:55:45,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:45,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:45,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:55:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:55:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:55:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:55:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:55:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:55:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:55:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:55:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:55:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:55:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-22 23:55:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 23:55:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 23:55:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-22 23:55:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2023-11-22 23:55:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-11-22 23:55:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-11-22 23:55:45,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-11-22 23:55:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-11-22 23:55:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2023-11-22 23:55:45,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:45,803 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2023-11-22 23:55:45,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:45,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657066052] [2023-11-22 23:55:45,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657066052] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:55:45,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:55:45,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 23:55:45,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294479921] [2023-11-22 23:55:45,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:55:45,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 23:55:45,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:45,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 23:55:45,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:55:45,805 INFO L87 Difference]: Start difference. First operand 2068 states and 3073 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-22 23:55:49,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:55:51,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:55:52,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:55:55,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:55:55,575 INFO L93 Difference]: Finished difference Result 4031 states and 6104 transitions. [2023-11-22 23:55:55,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 23:55:55,575 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 259 [2023-11-22 23:55:55,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:55:55,583 INFO L225 Difference]: With dead ends: 4031 [2023-11-22 23:55:55,583 INFO L226 Difference]: Without dead ends: 2513 [2023-11-22 23:55:55,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-22 23:55:55,590 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 2073 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 3580 mSolverCounterSat, 1361 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 3063 SdHoareTripleChecker+Invalid, 4942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1361 IncrementalHoareTripleChecker+Valid, 3580 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-11-22 23:55:55,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 3063 Invalid, 4942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1361 Valid, 3580 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2023-11-22 23:55:55,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2023-11-22 23:55:55,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2070. [2023-11-22 23:55:55,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2070 states, 1450 states have (on average 1.4475862068965517) internal successors, (2099), 1491 states have internal predecessors, (2099), 488 states have call successors, (488), 131 states have call predecessors, (488), 131 states have return successors, (488), 483 states have call predecessors, (488), 488 states have call successors, (488) [2023-11-22 23:55:55,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2070 states to 2070 states and 3075 transitions. [2023-11-22 23:55:55,707 INFO L78 Accepts]: Start accepts. Automaton has 2070 states and 3075 transitions. Word has length 259 [2023-11-22 23:55:55,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:55:55,708 INFO L495 AbstractCegarLoop]: Abstraction has 2070 states and 3075 transitions. [2023-11-22 23:55:55,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-11-22 23:55:55,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2070 states and 3075 transitions. [2023-11-22 23:55:55,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-22 23:55:55,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:55:55,740 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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] [2023-11-22 23:55:55,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-22 23:55:55,741 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:55:55,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:55:55,742 INFO L85 PathProgramCache]: Analyzing trace with hash -74731690, now seen corresponding path program 1 times [2023-11-22 23:55:55,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:55:55,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940167700] [2023-11-22 23:55:55,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:55,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:55:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:56,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:55:56,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:55:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:55:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:55:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:55:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:55:56,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:55:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:55:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:55:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:55:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:55:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:55:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:55:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:55:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:55:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:55:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:55:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:56,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-22 23:55:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-11-22 23:55:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:55:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:55:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-11-22 23:55:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2023-11-22 23:55:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2023-11-22 23:55:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-11-22 23:55:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-11-22 23:55:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-22 23:55:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2023-11-22 23:55:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-22 23:55:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-11-22 23:55:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:56,606 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-11-22 23:55:56,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:55:56,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940167700] [2023-11-22 23:55:56,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940167700] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:55:56,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751032247] [2023-11-22 23:55:56,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:55:56,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:55:56,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:55:56,608 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:55:56,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-22 23:55:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:55:57,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 2088 conjuncts, 171 conjunts are in the unsatisfiable core [2023-11-22 23:55:57,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:55:57,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-22 23:55:58,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-11-22 23:55:58,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2023-11-22 23:55:58,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-11-22 23:55:58,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2023-11-22 23:55:58,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2023-11-22 23:55:58,239 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2023-11-22 23:55:58,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 15 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 38 [2023-11-22 23:55:58,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2023-11-22 23:55:58,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 11 [2023-11-22 23:55:58,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 33 [2023-11-22 23:55:58,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 41 [2023-11-22 23:55:58,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 46 [2023-11-22 23:55:58,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-22 23:55:58,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2023-11-22 23:55:58,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 16 [2023-11-22 23:55:58,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-22 23:55:58,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-11-22 23:55:58,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:58,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-11-22 23:55:59,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-22 23:55:59,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:59,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:59,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:59,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-11-22 23:55:59,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-11-22 23:55:59,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:59,419 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 23:55:59,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:59,420 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 23:55:59,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 38 [2023-11-22 23:55:59,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:55:59,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-22 23:55:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 147 proven. 7 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-22 23:55:59,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 23:55:59,563 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1883 (Array Int Int)) (v_ArrVal_1882 (Array Int Int)) (v_ArrVal_1881 (Array Int Int))) (let ((.cse0 (mod (let ((.cse1 (+ |c_ULTIMATE.start_slip_open_~sl~12#1.offset| 12))) (select (select (store |c_#memory_int| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1882) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1881) |c_ULTIMATE.start_slip_open_~sl~12#1.base|) .cse1)) (+ 112 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1883) |c_ULTIMATE.start_slip_open_~sl~12#1.base|) .cse1)))) 4294967296))) (or (< 2147483647 .cse0) (< .cse0 1)))) is different from false [2023-11-22 23:55:59,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751032247] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:55:59,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 23:55:59,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 29] total 39 [2023-11-22 23:55:59,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507811872] [2023-11-22 23:55:59,574 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 23:55:59,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-22 23:55:59,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:55:59,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-22 23:55:59,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=1512, Unknown=1, NotChecked=78, Total=1722 [2023-11-22 23:55:59,576 INFO L87 Difference]: Start difference. First operand 2070 states and 3075 transitions. Second operand has 39 states, 34 states have (on average 6.029411764705882) internal successors, (205), 26 states have internal predecessors, (205), 11 states have call successors, (64), 11 states have call predecessors, (64), 12 states have return successors, (49), 15 states have call predecessors, (49), 11 states have call successors, (49) [2023-11-22 23:56:07,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:56:09,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:56:11,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:56:15,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:56:33,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:56:33,112 INFO L93 Difference]: Finished difference Result 4038 states and 6109 transitions. [2023-11-22 23:56:33,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-22 23:56:33,113 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 34 states have (on average 6.029411764705882) internal successors, (205), 26 states have internal predecessors, (205), 11 states have call successors, (64), 11 states have call predecessors, (64), 12 states have return successors, (49), 15 states have call predecessors, (49), 11 states have call successors, (49) Word has length 266 [2023-11-22 23:56:33,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:56:33,118 INFO L225 Difference]: With dead ends: 4038 [2023-11-22 23:56:33,119 INFO L226 Difference]: Without dead ends: 2513 [2023-11-22 23:56:33,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 901 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=363, Invalid=3422, Unknown=1, NotChecked=120, Total=3906 [2023-11-22 23:56:33,123 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 4345 mSDsluCounter, 11836 mSDsCounter, 0 mSdLazyCounter, 24287 mSolverCounterSat, 2727 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4454 SdHoareTripleChecker+Valid, 12589 SdHoareTripleChecker+Invalid, 27016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2727 IncrementalHoareTripleChecker+Valid, 24287 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2023-11-22 23:56:33,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4454 Valid, 12589 Invalid, 27016 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2727 Valid, 24287 Invalid, 2 Unknown, 0 Unchecked, 32.4s Time] [2023-11-22 23:56:33,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2023-11-22 23:56:33,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2082. [2023-11-22 23:56:33,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 1456 states have (on average 1.4457417582417582) internal successors, (2105), 1500 states have internal predecessors, (2105), 488 states have call successors, (488), 131 states have call predecessors, (488), 137 states have return successors, (508), 486 states have call predecessors, (508), 488 states have call successors, (508) [2023-11-22 23:56:33,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 3101 transitions. [2023-11-22 23:56:33,235 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 3101 transitions. Word has length 266 [2023-11-22 23:56:33,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:56:33,235 INFO L495 AbstractCegarLoop]: Abstraction has 2082 states and 3101 transitions. [2023-11-22 23:56:33,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 34 states have (on average 6.029411764705882) internal successors, (205), 26 states have internal predecessors, (205), 11 states have call successors, (64), 11 states have call predecessors, (64), 12 states have return successors, (49), 15 states have call predecessors, (49), 11 states have call successors, (49) [2023-11-22 23:56:33,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 3101 transitions. [2023-11-22 23:56:33,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2023-11-22 23:56:33,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:56:33,242 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-22 23:56:33,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-22 23:56:33,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-22 23:56:33,452 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:56:33,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:56:33,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1505999606, now seen corresponding path program 1 times [2023-11-22 23:56:33,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:56:33,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322823523] [2023-11-22 23:56:33,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:56:33,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:56:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:56:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:33,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:56:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:56:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:56:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:56:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:33,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:56:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:56:33,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:56:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:56:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:56:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:56:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:56:33,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:56:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:56:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:56:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:56:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:56:33,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:56:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 23:56:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:33,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:33,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:33,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-22 23:56:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-22 23:56:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-22 23:56:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 23:56:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2023-11-22 23:56:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-11-22 23:56:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-11-22 23:56:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-11-22 23:56:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-11-22 23:56:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-22 23:56:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:34,058 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2023-11-22 23:56:34,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:56:34,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322823523] [2023-11-22 23:56:34,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322823523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:56:34,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:56:34,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-22 23:56:34,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834910127] [2023-11-22 23:56:34,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:56:34,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-22 23:56:34,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:56:34,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-22 23:56:34,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:56:34,061 INFO L87 Difference]: Start difference. First operand 2082 states and 3101 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-22 23:56:37,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:56:42,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:56:42,744 INFO L93 Difference]: Finished difference Result 4047 states and 6128 transitions. [2023-11-22 23:56:42,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-22 23:56:42,745 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (33), 6 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 272 [2023-11-22 23:56:42,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:56:42,753 INFO L225 Difference]: With dead ends: 4047 [2023-11-22 23:56:42,753 INFO L226 Difference]: Without dead ends: 2519 [2023-11-22 23:56:42,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2023-11-22 23:56:42,758 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 1649 mSDsluCounter, 3572 mSDsCounter, 0 mSdLazyCounter, 5613 mSolverCounterSat, 1058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1676 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 6671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1058 IncrementalHoareTripleChecker+Valid, 5613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-22 23:56:42,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1676 Valid, 4322 Invalid, 6671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1058 Valid, 5613 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2023-11-22 23:56:42,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2023-11-22 23:56:42,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2084. [2023-11-22 23:56:42,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2084 states, 1458 states have (on average 1.4451303155006858) internal successors, (2107), 1501 states have internal predecessors, (2107), 488 states have call successors, (488), 131 states have call predecessors, (488), 137 states have return successors, (508), 487 states have call predecessors, (508), 488 states have call successors, (508) [2023-11-22 23:56:42,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 3103 transitions. [2023-11-22 23:56:42,932 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 3103 transitions. Word has length 272 [2023-11-22 23:56:42,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:56:42,933 INFO L495 AbstractCegarLoop]: Abstraction has 2084 states and 3103 transitions. [2023-11-22 23:56:42,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (33), 6 states have call predecessors, (33), 2 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2023-11-22 23:56:42,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 3103 transitions. [2023-11-22 23:56:42,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2023-11-22 23:56:42,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:56:42,939 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 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] [2023-11-22 23:56:42,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-22 23:56:42,940 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:56:42,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:56:42,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1230742570, now seen corresponding path program 2 times [2023-11-22 23:56:42,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:56:42,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014585451] [2023-11-22 23:56:42,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:56:42,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:56:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:56:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:56:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:56:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:56:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:56:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:56:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:56:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:56:43,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-22 23:56:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-22 23:56:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-22 23:56:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:56:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:56:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:56:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:56:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:56:43,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:56:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:56:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 23:56:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-22 23:56:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:56:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:56:43,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-11-22 23:56:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2023-11-22 23:56:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:56:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-11-22 23:56:43,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2023-11-22 23:56:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-11-22 23:56:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2023-11-22 23:56:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-11-22 23:56:43,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-11-22 23:56:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-11-22 23:56:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:56:43,572 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2023-11-22 23:56:43,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:56:43,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014585451] [2023-11-22 23:56:43,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014585451] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:56:43,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700754696] [2023-11-22 23:56:43,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 23:56:43,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:56:43,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:56:43,577 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:56:43,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-22 23:57:25,862 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 23:57:25,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 23:57:25,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 2140 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-22 23:57:25,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:57:25,945 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-22 23:57:25,945 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:57:25,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700754696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:57:25,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:57:25,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-11-22 23:57:25,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896566252] [2023-11-22 23:57:25,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:57:25,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 23:57:25,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:57:25,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 23:57:25,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:57:25,948 INFO L87 Difference]: Start difference. First operand 2084 states and 3103 transitions. Second operand has 4 states, 3 states have (on average 41.0) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-11-22 23:57:27,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:57:27,684 INFO L93 Difference]: Finished difference Result 4146 states and 6181 transitions. [2023-11-22 23:57:27,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 23:57:27,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 41.0) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 278 [2023-11-22 23:57:27,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:57:27,689 INFO L225 Difference]: With dead ends: 4146 [2023-11-22 23:57:27,689 INFO L226 Difference]: Without dead ends: 2085 [2023-11-22 23:57:27,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:57:27,695 INFO L413 NwaCegarLoop]: 1419 mSDtfsCounter, 0 mSDsluCounter, 2822 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4241 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-22 23:57:27,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4241 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-22 23:57:27,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2023-11-22 23:57:27,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2085. [2023-11-22 23:57:27,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2085 states, 1459 states have (on average 1.4448252227553118) internal successors, (2108), 1502 states have internal predecessors, (2108), 488 states have call successors, (488), 131 states have call predecessors, (488), 137 states have return successors, (508), 487 states have call predecessors, (508), 488 states have call successors, (508) [2023-11-22 23:57:27,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2085 states to 2085 states and 3104 transitions. [2023-11-22 23:57:27,811 INFO L78 Accepts]: Start accepts. Automaton has 2085 states and 3104 transitions. Word has length 278 [2023-11-22 23:57:27,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:57:27,812 INFO L495 AbstractCegarLoop]: Abstraction has 2085 states and 3104 transitions. [2023-11-22 23:57:27,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 41.0) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-11-22 23:57:27,812 INFO L276 IsEmpty]: Start isEmpty. Operand 2085 states and 3104 transitions. [2023-11-22 23:57:27,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-11-22 23:57:27,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:57:27,821 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 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] [2023-11-22 23:57:27,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-22 23:57:28,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-22 23:57:28,036 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:57:28,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:57:28,037 INFO L85 PathProgramCache]: Analyzing trace with hash 163794765, now seen corresponding path program 1 times [2023-11-22 23:57:28,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:57:28,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800023227] [2023-11-22 23:57:28,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:57:28,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:57:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:57:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:57:28,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:57:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:57:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:57:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:57:28,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:57:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 23:57:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-22 23:57:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 23:57:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-22 23:57:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:57:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 23:57:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-22 23:57:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-22 23:57:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 23:57:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-22 23:57:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:57:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-22 23:57:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-22 23:57:28,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2023-11-22 23:57:28,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2023-11-22 23:57:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:57:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2023-11-22 23:57:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-11-22 23:57:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2023-11-22 23:57:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2023-11-22 23:57:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2023-11-22 23:57:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-11-22 23:57:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2023-11-22 23:57:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:28,735 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-11-22 23:57:28,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:57:28,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800023227] [2023-11-22 23:57:28,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800023227] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:57:28,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494403712] [2023-11-22 23:57:28,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:57:28,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:57:28,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:57:28,737 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:57:28,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-22 23:57:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:29,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 2245 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-22 23:57:29,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:57:29,689 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 212 proven. 1 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-11-22 23:57:29,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 23:57:29,860 INFO L134 CoverageAnalysis]: Checked inductivity of 485 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 454 trivial. 0 not checked. [2023-11-22 23:57:29,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494403712] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 23:57:29,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 23:57:29,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 15 [2023-11-22 23:57:29,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988064569] [2023-11-22 23:57:29,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 23:57:29,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-22 23:57:29,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:57:29,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-22 23:57:29,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2023-11-22 23:57:29,864 INFO L87 Difference]: Start difference. First operand 2085 states and 3104 transitions. Second operand has 15 states, 13 states have (on average 12.0) internal successors, (156), 10 states have internal predecessors, (156), 2 states have call successors, (80), 7 states have call predecessors, (80), 4 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2023-11-22 23:57:33,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:57:36,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:57:38,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:57:40,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:57:41,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:57:46,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:57:46,173 INFO L93 Difference]: Finished difference Result 4585 states and 6914 transitions. [2023-11-22 23:57:46,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-22 23:57:46,173 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 12.0) internal successors, (156), 10 states have internal predecessors, (156), 2 states have call successors, (80), 7 states have call predecessors, (80), 4 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 285 [2023-11-22 23:57:46,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:57:46,180 INFO L225 Difference]: With dead ends: 4585 [2023-11-22 23:57:46,180 INFO L226 Difference]: Without dead ends: 2523 [2023-11-22 23:57:46,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 683 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=221, Invalid=649, Unknown=0, NotChecked=0, Total=870 [2023-11-22 23:57:46,184 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 2144 mSDsluCounter, 4428 mSDsCounter, 0 mSdLazyCounter, 7335 mSolverCounterSat, 1408 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2169 SdHoareTripleChecker+Valid, 5179 SdHoareTripleChecker+Invalid, 8746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1408 IncrementalHoareTripleChecker+Valid, 7335 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-11-22 23:57:46,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2169 Valid, 5179 Invalid, 8746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1408 Valid, 7335 Invalid, 3 Unknown, 0 Unchecked, 15.8s Time] [2023-11-22 23:57:46,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2023-11-22 23:57:46,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2093. [2023-11-22 23:57:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2093 states, 1466 states have (on average 1.4447476125511596) internal successors, (2118), 1509 states have internal predecessors, (2118), 488 states have call successors, (488), 132 states have call predecessors, (488), 138 states have return successors, (508), 487 states have call predecessors, (508), 488 states have call successors, (508) [2023-11-22 23:57:46,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 3114 transitions. [2023-11-22 23:57:46,339 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 3114 transitions. Word has length 285 [2023-11-22 23:57:46,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:57:46,339 INFO L495 AbstractCegarLoop]: Abstraction has 2093 states and 3114 transitions. [2023-11-22 23:57:46,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 12.0) internal successors, (156), 10 states have internal predecessors, (156), 2 states have call successors, (80), 7 states have call predecessors, (80), 4 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2023-11-22 23:57:46,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 3114 transitions. [2023-11-22 23:57:46,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2023-11-22 23:57:46,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:57:46,344 INFO L195 NwaCegarLoop]: trace histogram [24, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 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] [2023-11-22 23:57:46,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-22 23:57:46,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:57:46,560 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:57:46,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:57:46,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1352628266, now seen corresponding path program 2 times [2023-11-22 23:57:46,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:57:46,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68096483] [2023-11-22 23:57:46,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:57:46,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:57:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-22 23:57:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-22 23:57:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-22 23:57:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-22 23:57:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-22 23:57:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:47,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-22 23:57:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:57:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-22 23:57:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-22 23:57:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-22 23:57:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-22 23:57:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-22 23:57:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-22 23:57:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-11-22 23:57:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 23:57:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-11-22 23:57:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-11-22 23:57:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:47,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:57:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-11-22 23:57:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-11-22 23:57:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:57:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-22 23:57:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-11-22 23:57:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-11-22 23:57:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:57:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2023-11-22 23:57:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-11-22 23:57:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2023-11-22 23:57:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2023-11-22 23:57:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-11-22 23:57:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-11-22 23:57:47,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-11-22 23:57:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:57:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 32 proven. 61 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2023-11-22 23:57:47,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:57:47,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68096483] [2023-11-22 23:57:47,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68096483] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:57:47,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508588964] [2023-11-22 23:57:47,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 23:57:47,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:57:47,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:57:47,326 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 23:57:47,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-22 23:58:08,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 23:58:08,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 23:58:08,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-22 23:58:08,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:58:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 450 proven. 52 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-22 23:58:08,192 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 23:58:08,397 INFO L134 CoverageAnalysis]: Checked inductivity of 859 backedges. 32 proven. 61 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2023-11-22 23:58:08,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508588964] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 23:58:08,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 23:58:08,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 6] total 21 [2023-11-22 23:58:08,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294013628] [2023-11-22 23:58:08,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 23:58:08,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-22 23:58:08,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:58:08,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-22 23:58:08,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-11-22 23:58:08,400 INFO L87 Difference]: Start difference. First operand 2093 states and 3114 transitions. Second operand has 21 states, 18 states have (on average 9.0) internal successors, (162), 16 states have internal predecessors, (162), 2 states have call successors, (78), 7 states have call predecessors, (78), 5 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-11-22 23:58:13,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15