./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.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-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.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 6063bfeeaa4a025ac67d1a7a9b5cc20b489e34fc9db0d4dd9fcdda86c75b9c5e --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 23:05:55,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 23:05:55,378 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-22 23:05:55,383 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 23:05:55,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 23:05:55,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 23:05:55,413 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 23:05:55,414 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 23:05:55,414 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 23:05:55,418 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 23:05:55,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 23:05:55,419 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 23:05:55,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 23:05:55,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 23:05:55,421 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 23:05:55,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 23:05:55,422 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 23:05:55,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 23:05:55,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 23:05:55,423 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 23:05:55,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 23:05:55,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 23:05:55,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 23:05:55,424 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 23:05:55,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 23:05:55,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 23:05:55,425 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 23:05:55,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 23:05:55,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:05:55,426 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 23:05:55,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 23:05:55,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 23:05:55,428 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 23:05:55,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 23:05:55,428 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 23:05:55,429 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 23:05:55,429 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 23:05:55,429 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 23:05:55,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 23:05:55,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6063bfeeaa4a025ac67d1a7a9b5cc20b489e34fc9db0d4dd9fcdda86c75b9c5e Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-22 23:05:55,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 23:05:55,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 23:05:55,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 23:05:55,681 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 23:05:55,682 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 23:05:55,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2023-11-22 23:05:56,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 23:05:57,335 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 23:05:57,336 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2023-11-22 23:05:57,373 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1905adcea/149149f33ca246c996a723771db1ea32/FLAGe5738238b [2023-11-22 23:05:57,389 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1905adcea/149149f33ca246c996a723771db1ea32 [2023-11-22 23:05:57,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 23:05:57,393 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 23:05:57,395 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 23:05:57,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 23:05:57,401 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 23:05:57,401 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:05:57" (1/1) ... [2023-11-22 23:05:57,402 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60877032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:57, skipping insertion in model container [2023-11-22 23:05:57,402 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:05:57" (1/1) ... [2023-11-22 23:05:57,512 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 23:05:58,027 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-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i[139152,139165] [2023-11-22 23:05:58,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:05:58,765 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 23:05:58,903 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 23:05:58,906 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 23:05:58,906 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 23:05:58,907 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 23:05:58,909 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-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i[139152,139165] [2023-11-22 23:05:58,910 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4838] [2023-11-22 23:05:58,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4841] [2023-11-22 23:05:58,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4844] [2023-11-22 23:05:58,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4847] [2023-11-22 23:05:58,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5229] [2023-11-22 23:05:58,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5233] [2023-11-22 23:05:58,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5237] [2023-11-22 23:05:58,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5241] [2023-11-22 23:05:58,931 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"); [5252] [2023-11-22 23:05:58,931 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"); [5256] [2023-11-22 23:05:58,932 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"); [5260] [2023-11-22 23:05:58,932 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"); [5264] [2023-11-22 23:05:58,932 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"); [5275] [2023-11-22 23:05:58,933 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"); [5279] [2023-11-22 23:05:58,933 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"); [5283] [2023-11-22 23:05:58,933 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"); [5287] [2023-11-22 23:05:58,934 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"); [5298] [2023-11-22 23:05:58,934 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"); [5302] [2023-11-22 23:05:58,934 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"); [5306] [2023-11-22 23:05:58,935 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"); [5310] [2023-11-22 23:05:58,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5360] [2023-11-22 23:05:58,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5364] [2023-11-22 23:05:58,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5368] [2023-11-22 23:05:58,937 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5372] [2023-11-22 23:05:58,938 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"); [5383] [2023-11-22 23:05:58,938 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"); [5387] [2023-11-22 23:05:58,938 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"); [5391] [2023-11-22 23:05:58,939 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"); [5395] [2023-11-22 23:05:58,939 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"); [5406] [2023-11-22 23:05:58,940 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"); [5410] [2023-11-22 23:05:58,940 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"); [5414] [2023-11-22 23:05:58,940 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"); [5418] [2023-11-22 23:05:58,941 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"); [5429] [2023-11-22 23:05:58,941 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"); [5433] [2023-11-22 23:05:58,941 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"); [5437] [2023-11-22 23:05:58,942 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"); [5441] [2023-11-22 23:05:58,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5515] [2023-11-22 23:05:58,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5519] [2023-11-22 23:05:58,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5523] [2023-11-22 23:05:58,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5527] [2023-11-22 23:05:58,949 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"); [5538] [2023-11-22 23:05:58,950 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"); [5542] [2023-11-22 23:05:58,951 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"); [5546] [2023-11-22 23:05:58,951 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"); [5550] [2023-11-22 23:05:58,952 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"); [5561] [2023-11-22 23:05:58,952 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"); [5565] [2023-11-22 23:05:58,953 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"); [5569] [2023-11-22 23:05:58,953 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"); [5573] [2023-11-22 23:05:59,028 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"); [6512] [2023-11-22 23:05:59,028 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"); [6515] [2023-11-22 23:05:59,029 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"); [6518] [2023-11-22 23:05:59,029 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"); [6521] [2023-11-22 23:05:59,029 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"); [6524] [2023-11-22 23:05:59,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6537] [2023-11-22 23:05:59,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6540] [2023-11-22 23:05:59,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6543] [2023-11-22 23:05:59,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6546] [2023-11-22 23:05:59,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6549] [2023-11-22 23:05:59,032 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)); [6571] [2023-11-22 23:05:59,032 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)); [6574] [2023-11-22 23:05:59,033 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)); [6577] [2023-11-22 23:05:59,033 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)); [6580] [2023-11-22 23:05:59,034 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)); [6583] [2023-11-22 23:05:59,035 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"); [6616-6617] [2023-11-22 23:05:59,036 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"); [6620-6621] [2023-11-22 23:05:59,036 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"); [6624-6625] [2023-11-22 23:05:59,036 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"); [6628-6629] [2023-11-22 23:05:59,038 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"); [6632-6633] [2023-11-22 23:05:59,038 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)); [6646] [2023-11-22 23:05:59,038 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)); [6649] [2023-11-22 23:05:59,039 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)); [6652] [2023-11-22 23:05:59,039 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)); [6655] [2023-11-22 23:05:59,039 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)); [6658] [2023-11-22 23:05:59,040 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"); [6691-6692] [2023-11-22 23:05:59,040 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"); [6695-6696] [2023-11-22 23:05:59,040 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"); [6699-6700] [2023-11-22 23:05:59,041 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"); [6703-6704] [2023-11-22 23:05:59,042 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"); [6707-6708] [2023-11-22 23:05:59,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 23:05:59,202 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:05:59,203 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:05:59,203 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 23:05:59,210 INFO L206 MainTranslator]: Completed translation [2023-11-22 23:05:59,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59 WrapperNode [2023-11-22 23:05:59,211 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 23:05:59,212 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 23:05:59,213 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 23:05:59,213 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 23:05:59,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (1/1) ... [2023-11-22 23:05:59,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (1/1) ... [2023-11-22 23:05:59,405 INFO L138 Inliner]: procedures = 184, calls = 845, calls flagged for inlining = 92, calls inlined = 90, statements flattened = 3344 [2023-11-22 23:05:59,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 23:05:59,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 23:05:59,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 23:05:59,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 23:05:59,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (1/1) ... [2023-11-22 23:05:59,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (1/1) ... [2023-11-22 23:05:59,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (1/1) ... [2023-11-22 23:05:59,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (1/1) ... [2023-11-22 23:05:59,579 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (1/1) ... [2023-11-22 23:05:59,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (1/1) ... [2023-11-22 23:05:59,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (1/1) ... [2023-11-22 23:05:59,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (1/1) ... [2023-11-22 23:05:59,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 23:05:59,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 23:05:59,677 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 23:05:59,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 23:05:59,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (1/1) ... [2023-11-22 23:05:59,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 23:05:59,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:05:59,709 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 23:05:59,724 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 23:05:59,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2023-11-22 23:05:59,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2023-11-22 23:05:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2023-11-22 23:05:59,758 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2023-11-22 23:05:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-22 23:05:59,758 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-22 23:05:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-22 23:05:59,759 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-22 23:05:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-22 23:05:59,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-22 23:05:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-22 23:05:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-22 23:05:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-22 23:05:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-22 23:05:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-22 23:05:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-22 23:05:59,760 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-22 23:05:59,760 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2023-11-22 23:05:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2023-11-22 23:05:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-22 23:05:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-22 23:05:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-22 23:05:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-22 23:05:59,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-22 23:05:59,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-22 23:05:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-22 23:05:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-22 23:05:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-22 23:05:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-22 23:05:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-22 23:05:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-22 23:05:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2023-11-22 23:05:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2023-11-22 23:05:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-22 23:05:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-22 23:05:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-22 23:05:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-22 23:05:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-22 23:05:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-22 23:05:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-22 23:05:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 23:05:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 23:05:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-22 23:05:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-22 23:05:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-22 23:05:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-22 23:05:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 23:05:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-22 23:05:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-22 23:05:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2023-11-22 23:05:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2023-11-22 23:05:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2023-11-22 23:05:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2023-11-22 23:05:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 23:05:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-22 23:05:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-22 23:05:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2023-11-22 23:05:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2023-11-22 23:05:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 23:05:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-22 23:05:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-22 23:05:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-22 23:05:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-11-22 23:05:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-11-22 23:05:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2023-11-22 23:05:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2023-11-22 23:05:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-22 23:05:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-22 23:05:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2023-11-22 23:05:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2023-11-22 23:05:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-22 23:05:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-22 23:05:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-22 23:05:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-22 23:05:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-22 23:05:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-22 23:05:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-22 23:05:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2023-11-22 23:05:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2023-11-22 23:05:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2023-11-22 23:05:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2023-11-22 23:05:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 23:05:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-22 23:05:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-22 23:05:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-22 23:05:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2023-11-22 23:05:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2023-11-22 23:05:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-22 23:05:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-22 23:05:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-22 23:05:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-22 23:05:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2023-11-22 23:05:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2023-11-22 23:05:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-22 23:05:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-22 23:05:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-22 23:05:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-22 23:05:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2023-11-22 23:05:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2023-11-22 23:05:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-22 23:05:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-22 23:05:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-22 23:05:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-22 23:05:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-22 23:05:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-22 23:05:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-22 23:05:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-22 23:05:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-22 23:05:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-22 23:05:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-22 23:05:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-22 23:05:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-22 23:05:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-11-22 23:05:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-11-22 23:05:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-22 23:05:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-22 23:05:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-22 23:05:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-22 23:05:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-22 23:05:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 23:05:59,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 23:05:59,785 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2023-11-22 23:05:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2023-11-22 23:05:59,786 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-11-22 23:05:59,786 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-11-22 23:06:00,291 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 23:06:00,294 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 23:06:00,472 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-22 23:06:02,483 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 23:06:02,599 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 23:06:02,599 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-22 23:06:02,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:02 BoogieIcfgContainer [2023-11-22 23:06:02,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 23:06:02,602 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 23:06:02,602 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 23:06:02,605 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 23:06:02,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 11:05:57" (1/3) ... [2023-11-22 23:06:02,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740fa598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:06:02, skipping insertion in model container [2023-11-22 23:06:02,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:05:59" (2/3) ... [2023-11-22 23:06:02,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740fa598 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 11:06:02, skipping insertion in model container [2023-11-22 23:06:02,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:06:02" (3/3) ... [2023-11-22 23:06:02,607 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2023-11-22 23:06:02,622 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 23:06:02,622 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 23:06:02,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 23:06:02,681 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;@fd75956, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 23:06:02,682 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 23:06:02,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 1026 states, 727 states have (on average 1.5075653370013755) internal successors, (1096), 760 states have internal predecessors, (1096), 245 states have call successors, (245), 53 states have call predecessors, (245), 52 states have return successors, (240), 238 states have call predecessors, (240), 240 states have call successors, (240) [2023-11-22 23:06:02,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-22 23:06:02,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:06:02,705 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:06:02,705 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:06:02,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:06:02,710 INFO L85 PathProgramCache]: Analyzing trace with hash 226412890, now seen corresponding path program 1 times [2023-11-22 23:06:02,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:06:02,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575762161] [2023-11-22 23:06:02,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:02,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:06:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:03,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:03,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:06:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:03,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:06:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:03,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:06:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:03,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:06:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:03,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:06:03,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:03,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:06:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:03,347 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-22 23:06:03,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:06:03,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575762161] [2023-11-22 23:06:03,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575762161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:06:03,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:06:03,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 23:06:03,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256856196] [2023-11-22 23:06:03,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:06:03,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 23:06:03,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:06:03,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 23:06:03,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 23:06:03,390 INFO L87 Difference]: Start difference. First operand has 1026 states, 727 states have (on average 1.5075653370013755) internal successors, (1096), 760 states have internal predecessors, (1096), 245 states have call successors, (245), 53 states have call predecessors, (245), 52 states have return successors, (240), 238 states have call predecessors, (240), 240 states have call successors, (240) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-22 23:06:07,437 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 23:06:08,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:06:08,756 INFO L93 Difference]: Finished difference Result 2767 states and 4311 transitions. [2023-11-22 23:06:08,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 23:06:08,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2023-11-22 23:06:08,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:06:08,785 INFO L225 Difference]: With dead ends: 2767 [2023-11-22 23:06:08,785 INFO L226 Difference]: Without dead ends: 1667 [2023-11-22 23:06:08,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 23:06:08,803 INFO L413 NwaCegarLoop]: 1127 mSDtfsCounter, 1387 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 511 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1527 SdHoareTripleChecker+Valid, 2587 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 511 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-22 23:06:08,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1527 Valid, 2587 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [511 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-22 23:06:08,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2023-11-22 23:06:08,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1515. [2023-11-22 23:06:08,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1066 states have (on average 1.474671669793621) internal successors, (1572), 1099 states have internal predecessors, (1572), 358 states have call successors, (358), 91 states have call predecessors, (358), 90 states have return successors, (357), 354 states have call predecessors, (357), 357 states have call successors, (357) [2023-11-22 23:06:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2287 transitions. [2023-11-22 23:06:08,966 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2287 transitions. Word has length 60 [2023-11-22 23:06:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:06:08,966 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 2287 transitions. [2023-11-22 23:06:08,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-22 23:06:08,967 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2287 transitions. [2023-11-22 23:06:08,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-22 23:06:08,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:06:08,975 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-22 23:06:08,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 23:06:08,980 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:06:08,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:06:08,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1136121569, now seen corresponding path program 1 times [2023-11-22 23:06:08,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:06:08,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116184006] [2023-11-22 23:06:08,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:08,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:06:09,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:06:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:06:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:06:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:06:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:06:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:06:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:06:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:06:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:06:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 23:06:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 23:06:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:06:09,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:09,491 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-22 23:06:09,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:06:09,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116184006] [2023-11-22 23:06:09,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116184006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:06:09,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:06:09,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 23:06:09,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485433245] [2023-11-22 23:06:09,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:06:09,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 23:06:09,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:06:09,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 23:06:09,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-22 23:06:09,494 INFO L87 Difference]: Start difference. First operand 1515 states and 2287 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-22 23:06:12,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:06:12,517 INFO L93 Difference]: Finished difference Result 3193 states and 4875 transitions. [2023-11-22 23:06:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 23:06:12,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 110 [2023-11-22 23:06:12,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:06:12,530 INFO L225 Difference]: With dead ends: 3193 [2023-11-22 23:06:12,530 INFO L226 Difference]: Without dead ends: 1699 [2023-11-22 23:06:12,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:06:12,540 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 2246 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 833 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-22 23:06:12,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 1479 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-22 23:06:12,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2023-11-22 23:06:12,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1515. [2023-11-22 23:06:12,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1066 states have (on average 1.472795497185741) internal successors, (1570), 1099 states have internal predecessors, (1570), 358 states have call successors, (358), 91 states have call predecessors, (358), 90 states have return successors, (357), 354 states have call predecessors, (357), 357 states have call successors, (357) [2023-11-22 23:06:12,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2285 transitions. [2023-11-22 23:06:12,630 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2285 transitions. Word has length 110 [2023-11-22 23:06:12,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:06:12,631 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 2285 transitions. [2023-11-22 23:06:12,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-22 23:06:12,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2285 transitions. [2023-11-22 23:06:12,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-22 23:06:12,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:06:12,635 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-22 23:06:12,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 23:06:12,636 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:06:12,636 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:06:12,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1696821347, now seen corresponding path program 1 times [2023-11-22 23:06:12,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:06:12,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862083045] [2023-11-22 23:06:12,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:12,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:06:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:12,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:06:12,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:06:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:06:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:06:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:06:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:06:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:06:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:06:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:06:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 23:06:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:12,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:13,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 23:06:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:13,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:06:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 23:06:13,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:06:13,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862083045] [2023-11-22 23:06:13,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862083045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:06:13,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:06:13,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 23:06:13,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451525121] [2023-11-22 23:06:13,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:06:13,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 23:06:13,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:06:13,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 23:06:13,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:06:13,023 INFO L87 Difference]: Start difference. First operand 1515 states and 2285 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-22 23:06:15,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:06:18,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:06:20,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:06:20,575 INFO L93 Difference]: Finished difference Result 2174 states and 3437 transitions. [2023-11-22 23:06:20,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 23:06:20,575 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2023-11-22 23:06:20,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:06:20,586 INFO L225 Difference]: With dead ends: 2174 [2023-11-22 23:06:20,587 INFO L226 Difference]: Without dead ends: 2171 [2023-11-22 23:06:20,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:06:20,592 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 880 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 3054 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 5163 SdHoareTripleChecker+Invalid, 3291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 3054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-22 23:06:20,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 5163 Invalid, 3291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 3054 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-22 23:06:20,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2023-11-22 23:06:20,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 1517. [2023-11-22 23:06:20,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1068 states have (on average 1.4719101123595506) internal successors, (1572), 1101 states have internal predecessors, (1572), 358 states have call successors, (358), 91 states have call predecessors, (358), 90 states have return successors, (357), 354 states have call predecessors, (357), 357 states have call successors, (357) [2023-11-22 23:06:20,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2287 transitions. [2023-11-22 23:06:20,670 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2287 transitions. Word has length 110 [2023-11-22 23:06:20,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:06:20,673 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 2287 transitions. [2023-11-22 23:06:20,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-22 23:06:20,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2287 transitions. [2023-11-22 23:06:20,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-22 23:06:20,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:06:20,681 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 23:06:20,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 23:06:20,681 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:06:20,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:06:20,682 INFO L85 PathProgramCache]: Analyzing trace with hash 499142790, now seen corresponding path program 1 times [2023-11-22 23:06:20,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:06:20,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162656723] [2023-11-22 23:06:20,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:20,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:06:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:06:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:06:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:06:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:06:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:06:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:06:20,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:06:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:06:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:06:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 23:06:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 23:06:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:06:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:20,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-22 23:06:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 23:06:21,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:06:21,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162656723] [2023-11-22 23:06:21,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162656723] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:06:21,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:06:21,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 23:06:21,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588166759] [2023-11-22 23:06:21,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:06:21,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 23:06:21,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:06:21,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 23:06:21,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:06:21,002 INFO L87 Difference]: Start difference. First operand 1517 states and 2287 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-22 23:06:24,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:06:24,249 INFO L93 Difference]: Finished difference Result 3206 states and 4890 transitions. [2023-11-22 23:06:24,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 23:06:24,249 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 119 [2023-11-22 23:06:24,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:06:24,259 INFO L225 Difference]: With dead ends: 3206 [2023-11-22 23:06:24,259 INFO L226 Difference]: Without dead ends: 1710 [2023-11-22 23:06:24,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:06:24,266 INFO L413 NwaCegarLoop]: 917 mSDtfsCounter, 2231 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 835 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 835 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-22 23:06:24,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 2087 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [835 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-22 23:06:24,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2023-11-22 23:06:24,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1518. [2023-11-22 23:06:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1069 states have (on average 1.471468662301216) internal successors, (1573), 1102 states have internal predecessors, (1573), 358 states have call successors, (358), 91 states have call predecessors, (358), 90 states have return successors, (357), 354 states have call predecessors, (357), 357 states have call successors, (357) [2023-11-22 23:06:24,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2288 transitions. [2023-11-22 23:06:24,334 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2288 transitions. Word has length 119 [2023-11-22 23:06:24,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:06:24,335 INFO L495 AbstractCegarLoop]: Abstraction has 1518 states and 2288 transitions. [2023-11-22 23:06:24,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-22 23:06:24,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2288 transitions. [2023-11-22 23:06:24,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-22 23:06:24,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:06:24,340 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-22 23:06:24,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 23:06:24,341 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:06:24,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:06:24,341 INFO L85 PathProgramCache]: Analyzing trace with hash -85328744, now seen corresponding path program 1 times [2023-11-22 23:06:24,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:06:24,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111436269] [2023-11-22 23:06:24,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:24,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:06:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:06:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:06:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:06:24,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:06:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:06:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:06:24,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:06:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:06:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:06:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 23:06:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 23:06:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:06:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 23:06:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 23:06:24,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:06:24,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111436269] [2023-11-22 23:06:24,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111436269] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:06:24,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:06:24,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 23:06:24,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069183358] [2023-11-22 23:06:24,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:06:24,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:06:24,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:06:24,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:06:24,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:06:24,650 INFO L87 Difference]: Start difference. First operand 1518 states and 2288 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-22 23:06:27,367 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 23:06:30,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:06:30,527 INFO L93 Difference]: Finished difference Result 2190 states and 3459 transitions. [2023-11-22 23:06:30,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 23:06:30,528 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 120 [2023-11-22 23:06:30,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:06:30,539 INFO L225 Difference]: With dead ends: 2190 [2023-11-22 23:06:30,539 INFO L226 Difference]: Without dead ends: 2187 [2023-11-22 23:06:30,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-22 23:06:30,541 INFO L413 NwaCegarLoop]: 1300 mSDtfsCounter, 1442 mSDsluCounter, 3831 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 539 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1659 SdHoareTripleChecker+Valid, 5131 SdHoareTripleChecker+Invalid, 3961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 539 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-22 23:06:30,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1659 Valid, 5131 Invalid, 3961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [539 Valid, 3421 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2023-11-22 23:06:30,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2023-11-22 23:06:30,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1520. [2023-11-22 23:06:30,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1070 states have (on average 1.4710280373831777) internal successors, (1574), 1102 states have internal predecessors, (1574), 359 states have call successors, (359), 91 states have call predecessors, (359), 90 states have return successors, (358), 355 states have call predecessors, (358), 358 states have call successors, (358) [2023-11-22 23:06:30,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2291 transitions. [2023-11-22 23:06:30,617 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2291 transitions. Word has length 120 [2023-11-22 23:06:30,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:06:30,618 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 2291 transitions. [2023-11-22 23:06:30,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-22 23:06:30,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2291 transitions. [2023-11-22 23:06:30,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-22 23:06:30,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:06:30,625 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-22 23:06:30,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 23:06:30,625 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:06:30,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:06:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1381898376, now seen corresponding path program 1 times [2023-11-22 23:06:30,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:06:30,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382658312] [2023-11-22 23:06:30,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:30,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:06:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:06:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:06:30,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:06:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:06:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:06:30,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:06:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:06:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:06:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:06:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 23:06:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 23:06:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:06:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 23:06:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 23:06:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 23:06:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 23:06:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:06:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:30,880 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-22 23:06:30,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:06:30,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382658312] [2023-11-22 23:06:30,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382658312] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:06:30,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:06:30,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 23:06:30,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126530199] [2023-11-22 23:06:30,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:06:30,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 23:06:30,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:06:30,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 23:06:30,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-22 23:06:30,883 INFO L87 Difference]: Start difference. First operand 1520 states and 2291 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 23:06:36,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:06:36,286 INFO L93 Difference]: Finished difference Result 4849 states and 7408 transitions. [2023-11-22 23:06:36,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 23:06:36,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2023-11-22 23:06:36,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:06:36,303 INFO L225 Difference]: With dead ends: 4849 [2023-11-22 23:06:36,303 INFO L226 Difference]: Without dead ends: 3350 [2023-11-22 23:06:36,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:06:36,309 INFO L413 NwaCegarLoop]: 1455 mSDtfsCounter, 2012 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2238 SdHoareTripleChecker+Valid, 3761 SdHoareTripleChecker+Invalid, 3234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-22 23:06:36,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2238 Valid, 3761 Invalid, 3234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-22 23:06:36,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2023-11-22 23:06:36,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 2979. [2023-11-22 23:06:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2102 states have (on average 1.4733587059942912) internal successors, (3097), 2166 states have internal predecessors, (3097), 697 states have call successors, (697), 180 states have call predecessors, (697), 179 states have return successors, (696), 688 states have call predecessors, (696), 696 states have call successors, (696) [2023-11-22 23:06:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4490 transitions. [2023-11-22 23:06:36,516 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4490 transitions. Word has length 148 [2023-11-22 23:06:36,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:06:36,516 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4490 transitions. [2023-11-22 23:06:36,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 23:06:36,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4490 transitions. [2023-11-22 23:06:36,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 23:06:36,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:06:36,528 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 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] [2023-11-22 23:06:36,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 23:06:36,529 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:06:36,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:06:36,529 INFO L85 PathProgramCache]: Analyzing trace with hash -575463912, now seen corresponding path program 1 times [2023-11-22 23:06:36,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:06:36,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594462401] [2023-11-22 23:06:36,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:36,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:06:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:06:36,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:06:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:06:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:06:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:06:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:06:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:06:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:06:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:06:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 23:06:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-22 23:06:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 23:06:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 23:06:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-22 23:06:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 23:06:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 23:06:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:06:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 23:06:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:36,784 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-22 23:06:36,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:06:36,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594462401] [2023-11-22 23:06:36,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594462401] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:06:36,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:06:36,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 23:06:36,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863354434] [2023-11-22 23:06:36,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:06:36,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 23:06:36,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:06:36,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 23:06:36,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:06:36,786 INFO L87 Difference]: Start difference. First operand 2979 states and 4490 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 23:06:39,821 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 23:06:41,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:06:41,903 INFO L93 Difference]: Finished difference Result 5256 states and 7969 transitions. [2023-11-22 23:06:41,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 23:06:41,904 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2023-11-22 23:06:41,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:06:41,915 INFO L225 Difference]: With dead ends: 5256 [2023-11-22 23:06:41,915 INFO L226 Difference]: Without dead ends: 2288 [2023-11-22 23:06:41,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 23:06:41,924 INFO L413 NwaCegarLoop]: 930 mSDtfsCounter, 544 mSDsluCounter, 2655 mSDsCounter, 0 mSdLazyCounter, 2738 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 2974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 2738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-11-22 23:06:41,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 3585 Invalid, 2974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 2738 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-11-22 23:06:41,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2023-11-22 23:06:42,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 2026. [2023-11-22 23:06:42,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2026 states, 1417 states have (on average 1.460832745236415) internal successors, (2070), 1458 states have internal predecessors, (2070), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 23:06:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2026 states to 2026 states and 3029 transitions. [2023-11-22 23:06:42,046 INFO L78 Accepts]: Start accepts. Automaton has 2026 states and 3029 transitions. Word has length 150 [2023-11-22 23:06:42,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:06:42,047 INFO L495 AbstractCegarLoop]: Abstraction has 2026 states and 3029 transitions. [2023-11-22 23:06:42,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 23:06:42,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2026 states and 3029 transitions. [2023-11-22 23:06:42,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 23:06:42,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:06:42,057 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-22 23:06:42,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 23:06:42,058 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:06:42,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:06:42,058 INFO L85 PathProgramCache]: Analyzing trace with hash -79817950, now seen corresponding path program 1 times [2023-11-22 23:06:42,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:06:42,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681518577] [2023-11-22 23:06:42,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:42,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:06:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:06:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:06:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:06:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:06:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:06:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:06:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:06:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:06:42,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:06:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 23:06:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 23:06:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:06:42,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 23:06:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 23:06:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 23:06:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:06:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 23:06:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:42,405 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 23:06:42,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:06:42,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681518577] [2023-11-22 23:06:42,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681518577] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:06:42,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:06:42,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 23:06:42,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127411799] [2023-11-22 23:06:42,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:06:42,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 23:06:42,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:06:42,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 23:06:42,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:06:42,408 INFO L87 Difference]: Start difference. First operand 2026 states and 3029 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 23:06:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:06:45,717 INFO L93 Difference]: Finished difference Result 3803 states and 5782 transitions. [2023-11-22 23:06:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 23:06:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2023-11-22 23:06:45,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:06:45,730 INFO L225 Difference]: With dead ends: 3803 [2023-11-22 23:06:45,731 INFO L226 Difference]: Without dead ends: 2308 [2023-11-22 23:06:45,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:06:45,737 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 2230 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 1942 mSolverCounterSat, 854 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 2071 SdHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 854 IncrementalHoareTripleChecker+Valid, 1942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-22 23:06:45,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2366 Valid, 2071 Invalid, 2796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [854 Valid, 1942 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-22 23:06:45,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2023-11-22 23:06:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2029. [2023-11-22 23:06:45,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 1420 states have (on average 1.4605633802816902) internal successors, (2074), 1461 states have internal predecessors, (2074), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 23:06:45,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 3033 transitions. [2023-11-22 23:06:45,908 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 3033 transitions. Word has length 150 [2023-11-22 23:06:45,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:06:45,908 INFO L495 AbstractCegarLoop]: Abstraction has 2029 states and 3033 transitions. [2023-11-22 23:06:45,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 23:06:45,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 3033 transitions. [2023-11-22 23:06:45,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-22 23:06:45,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:06:45,918 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-22 23:06:45,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 23:06:45,919 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:06:45,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:06:45,919 INFO L85 PathProgramCache]: Analyzing trace with hash -969866672, now seen corresponding path program 1 times [2023-11-22 23:06:45,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:06:45,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36466368] [2023-11-22 23:06:45,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:45,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:06:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:06:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:06:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:06:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:06:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:06:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:06:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:06:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:06:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:06:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 23:06:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 23:06:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:06:46,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 23:06:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 23:06:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:06:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-22 23:06:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 23:06:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:46,094 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-22 23:06:46,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:06:46,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36466368] [2023-11-22 23:06:46,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36466368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:06:46,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:06:46,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 23:06:46,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742019319] [2023-11-22 23:06:46,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:06:46,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 23:06:46,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:06:46,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 23:06:46,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-22 23:06:46,097 INFO L87 Difference]: Start difference. First operand 2029 states and 3033 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-22 23:06:48,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:06:49,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:06:49,785 INFO L93 Difference]: Finished difference Result 4302 states and 6538 transitions. [2023-11-22 23:06:49,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 23:06:49,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2023-11-22 23:06:49,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:06:49,797 INFO L225 Difference]: With dead ends: 4302 [2023-11-22 23:06:49,798 INFO L226 Difference]: Without dead ends: 2294 [2023-11-22 23:06:49,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:06:49,805 INFO L413 NwaCegarLoop]: 983 mSDtfsCounter, 989 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 488 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-22 23:06:49,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 2414 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [488 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-22 23:06:49,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2023-11-22 23:06:49,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2029. [2023-11-22 23:06:49,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 1420 states have (on average 1.454225352112676) internal successors, (2065), 1461 states have internal predecessors, (2065), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 23:06:49,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 3024 transitions. [2023-11-22 23:06:49,982 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 3024 transitions. Word has length 152 [2023-11-22 23:06:49,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:06:49,982 INFO L495 AbstractCegarLoop]: Abstraction has 2029 states and 3024 transitions. [2023-11-22 23:06:49,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-22 23:06:49,983 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 3024 transitions. [2023-11-22 23:06:49,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-22 23:06:49,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:06:49,995 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-22 23:06:49,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-22 23:06:49,995 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:06:49,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:06:49,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1278534922, now seen corresponding path program 1 times [2023-11-22 23:06:49,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:06:49,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861068883] [2023-11-22 23:06:49,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:49,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:06:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:06:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:06:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:06:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:06:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:06:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:06:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:06:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:06:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:06:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 23:06:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 23:06:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:06:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 23:06:50,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 23:06:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:06:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-22 23:06:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-22 23:06:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,322 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 23:06:50,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:06:50,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861068883] [2023-11-22 23:06:50,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861068883] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:06:50,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344700648] [2023-11-22 23:06:50,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:50,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:06:50,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:06:50,333 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 23:06:50,337 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 23:06:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:50,848 INFO L262 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 23:06:50,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:06:51,086 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 23:06:51,087 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 23:06:51,283 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 23:06:51,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344700648] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 23:06:51,284 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 23:06:51,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 12 [2023-11-22 23:06:51,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238390159] [2023-11-22 23:06:51,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 23:06:51,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 23:06:51,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:06:51,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 23:06:51,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-22 23:06:51,286 INFO L87 Difference]: Start difference. First operand 2029 states and 3024 transitions. Second operand has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2023-11-22 23:06:55,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:06:55,229 INFO L93 Difference]: Finished difference Result 3849 states and 5842 transitions. [2023-11-22 23:06:55,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 23:06:55,230 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) Word has length 155 [2023-11-22 23:06:55,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:06:55,241 INFO L225 Difference]: With dead ends: 3849 [2023-11-22 23:06:55,241 INFO L226 Difference]: Without dead ends: 2351 [2023-11-22 23:06:55,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-11-22 23:06:55,247 INFO L413 NwaCegarLoop]: 963 mSDtfsCounter, 3306 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 1419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3443 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 3425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1419 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-22 23:06:55,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3443 Valid, 2205 Invalid, 3425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1419 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-22 23:06:55,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2023-11-22 23:06:55,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 2034. [2023-11-22 23:06:55,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2034 states, 1425 states have (on average 1.4540350877192982) internal successors, (2072), 1466 states have internal predecessors, (2072), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 23:06:55,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2034 states to 2034 states and 3031 transitions. [2023-11-22 23:06:55,370 INFO L78 Accepts]: Start accepts. Automaton has 2034 states and 3031 transitions. Word has length 155 [2023-11-22 23:06:55,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:06:55,371 INFO L495 AbstractCegarLoop]: Abstraction has 2034 states and 3031 transitions. [2023-11-22 23:06:55,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2023-11-22 23:06:55,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2034 states and 3031 transitions. [2023-11-22 23:06:55,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-22 23:06:55,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:06:55,381 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-22 23:06:55,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-22 23:06:55,598 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,SelfDestructingSolverStorable9 [2023-11-22 23:06:55,598 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:06:55,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:06:55,599 INFO L85 PathProgramCache]: Analyzing trace with hash -863844288, now seen corresponding path program 2 times [2023-11-22 23:06:55,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:06:55,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965672808] [2023-11-22 23:06:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:06:55,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:06:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:06:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:06:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:06:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:06:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:06:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:06:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:06:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:06:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:06:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 23:06:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:06:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 23:06:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:06:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 23:06:55,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 23:06:55,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-22 23:06:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:55,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 23:06:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:56,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 23:06:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:06:56,010 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 23:06:56,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:06:56,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965672808] [2023-11-22 23:06:56,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965672808] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:06:56,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602710711] [2023-11-22 23:06:56,011 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 23:06:56,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:06:56,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:06:56,012 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 23:06:56,036 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 23:06:56,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 23:06:56,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 23:06:56,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-22 23:06:56,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:06:57,207 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 23:06:57,207 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 23:06:57,422 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 23:06:57,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602710711] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 23:06:57,423 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 23:06:57,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 8] total 21 [2023-11-22 23:06:57,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702347029] [2023-11-22 23:06:57,423 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 23:06:57,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-22 23:06:57,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:06:57,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-22 23:06:57,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2023-11-22 23:06:57,426 INFO L87 Difference]: Start difference. First operand 2034 states and 3031 transitions. Second operand has 21 states, 21 states have (on average 8.714285714285714) internal successors, (183), 19 states have internal predecessors, (183), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2023-11-22 23:07:00,296 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 23:07:03,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:07:03,781 INFO L93 Difference]: Finished difference Result 3974 states and 6041 transitions. [2023-11-22 23:07:03,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-22 23:07:03,781 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.714285714285714) internal successors, (183), 19 states have internal predecessors, (183), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) Word has length 161 [2023-11-22 23:07:03,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:07:03,791 INFO L225 Difference]: With dead ends: 3974 [2023-11-22 23:07:03,792 INFO L226 Difference]: Without dead ends: 2471 [2023-11-22 23:07:03,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=239, Invalid=517, Unknown=0, NotChecked=0, Total=756 [2023-11-22 23:07:03,798 INFO L413 NwaCegarLoop]: 990 mSDtfsCounter, 3560 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 3137 mSolverCounterSat, 1534 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3715 SdHoareTripleChecker+Valid, 3003 SdHoareTripleChecker+Invalid, 4672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1534 IncrementalHoareTripleChecker+Valid, 3137 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-22 23:07:03,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3715 Valid, 3003 Invalid, 4672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1534 Valid, 3137 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2023-11-22 23:07:03,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2023-11-22 23:07:03,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2046. [2023-11-22 23:07:03,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 1437 states have (on average 1.454418928322895) internal successors, (2090), 1478 states have internal predecessors, (2090), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 23:07:03,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 3049 transitions. [2023-11-22 23:07:03,925 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 3049 transitions. Word has length 161 [2023-11-22 23:07:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:07:03,928 INFO L495 AbstractCegarLoop]: Abstraction has 2046 states and 3049 transitions. [2023-11-22 23:07:03,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.714285714285714) internal successors, (183), 19 states have internal predecessors, (183), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2023-11-22 23:07:03,929 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 3049 transitions. [2023-11-22 23:07:03,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-22 23:07:03,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:07:03,938 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 23:07:03,955 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 23:07:04,151 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,SelfDestructingSolverStorable10 [2023-11-22 23:07:04,151 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:07:04,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:07:04,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1875001162, now seen corresponding path program 1 times [2023-11-22 23:07:04,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:07:04,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446972371] [2023-11-22 23:07:04,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:07:04,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:07:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:07:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:07:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:07:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:07:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:07:04,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:07:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:07:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:07:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:07:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 23:07:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 23:07:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 23:07:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 23:07:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-22 23:07:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:07:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 23:07:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 23:07:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 23:07:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 23:07:04,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:07:04,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446972371] [2023-11-22 23:07:04,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446972371] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:07:04,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790284597] [2023-11-22 23:07:04,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:07:04,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:07:04,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:07:04,999 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 23:07:05,017 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 23:07:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:05,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 23:07:05,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:07:05,512 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-22 23:07:05,512 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:07:05,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790284597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:07:05,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:07:05,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-22 23:07:05,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032051822] [2023-11-22 23:07:05,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:07:05,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 23:07:05,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:07:05,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 23:07:05,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:07:05,515 INFO L87 Difference]: Start difference. First operand 2046 states and 3049 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 23:07:06,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:07:06,553 INFO L93 Difference]: Finished difference Result 3576 states and 5341 transitions. [2023-11-22 23:07:06,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 23:07:06,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 163 [2023-11-22 23:07:06,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:07:06,571 INFO L225 Difference]: With dead ends: 3576 [2023-11-22 23:07:06,571 INFO L226 Difference]: Without dead ends: 2046 [2023-11-22 23:07:06,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:07:06,575 INFO L413 NwaCegarLoop]: 1396 mSDtfsCounter, 2 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-22 23:07:06,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2790 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-22 23:07:06,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2046 states. [2023-11-22 23:07:06,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2046 to 2046. [2023-11-22 23:07:06,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 1437 states have (on average 1.4523312456506612) internal successors, (2087), 1478 states have internal predecessors, (2087), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 23:07:06,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 3046 transitions. [2023-11-22 23:07:06,704 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 3046 transitions. Word has length 163 [2023-11-22 23:07:06,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:07:06,704 INFO L495 AbstractCegarLoop]: Abstraction has 2046 states and 3046 transitions. [2023-11-22 23:07:06,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 23:07:06,705 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 3046 transitions. [2023-11-22 23:07:06,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-22 23:07:06,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:07:06,713 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 23:07:06,729 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 23:07:06,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:07:06,928 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:07:06,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:07:06,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1336722211, now seen corresponding path program 1 times [2023-11-22 23:07:06,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:07:06,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612573400] [2023-11-22 23:07:06,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:07:06,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:07:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:07,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:07:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:07:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:07:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:07:07,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:07:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:07:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:07:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:07:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:07:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:07:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-22 23:07:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:07:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:07:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 23:07:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-22 23:07:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-22 23:07:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-22 23:07:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:07:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:07,741 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 23:07:07,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:07:07,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612573400] [2023-11-22 23:07:07,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612573400] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:07:07,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790093357] [2023-11-22 23:07:07,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:07:07,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:07:07,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:07:07,743 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 23:07:07,762 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 23:07:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:08,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-22 23:07:08,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:07:08,276 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-22 23:07:08,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:07:08,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790093357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:07:08,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:07:08,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-11-22 23:07:08,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617412281] [2023-11-22 23:07:08,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:07:08,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 23:07:08,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:07:08,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 23:07:08,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-22 23:07:08,278 INFO L87 Difference]: Start difference. First operand 2046 states and 3046 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 23:07:09,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:07:10,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:07:10,704 INFO L93 Difference]: Finished difference Result 4052 states and 6124 transitions. [2023-11-22 23:07:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 23:07:10,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 164 [2023-11-22 23:07:10,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:07:10,724 INFO L225 Difference]: With dead ends: 4052 [2023-11-22 23:07:10,724 INFO L226 Difference]: Without dead ends: 2537 [2023-11-22 23:07:10,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-22 23:07:10,730 INFO L413 NwaCegarLoop]: 1795 mSDtfsCounter, 362 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 5034 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-22 23:07:10,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 5034 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-22 23:07:10,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2023-11-22 23:07:10,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2048. [2023-11-22 23:07:10,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2048 states, 1439 states have (on average 1.4517025712300209) internal successors, (2089), 1480 states have internal predecessors, (2089), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 23:07:10,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 3048 transitions. [2023-11-22 23:07:10,898 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 3048 transitions. Word has length 164 [2023-11-22 23:07:10,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:07:10,898 INFO L495 AbstractCegarLoop]: Abstraction has 2048 states and 3048 transitions. [2023-11-22 23:07:10,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 23:07:10,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 3048 transitions. [2023-11-22 23:07:10,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-22 23:07:10,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:07:10,907 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2023-11-22 23:07:10,931 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 23:07:11,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:07:11,124 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:07:11,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:07:11,124 INFO L85 PathProgramCache]: Analyzing trace with hash 956493085, now seen corresponding path program 1 times [2023-11-22 23:07:11,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:07:11,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58957860] [2023-11-22 23:07:11,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:07:11,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:07:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:07:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:07:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:07:11,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:07:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:07:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:07:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:07:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:07:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:07:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:07:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-22 23:07:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:07:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:07:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 23:07:11,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 23:07:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 23:07:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 23:07:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 23:07:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-22 23:07:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 23:07:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-22 23:07:11,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:07:11,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58957860] [2023-11-22 23:07:11,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58957860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:07:11,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:07:11,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 23:07:11,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270891317] [2023-11-22 23:07:11,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:07:11,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 23:07:11,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:07:11,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 23:07:11,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 23:07:11,327 INFO L87 Difference]: Start difference. First operand 2048 states and 3048 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-22 23:07:15,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:07:15,994 INFO L93 Difference]: Finished difference Result 3958 states and 5995 transitions. [2023-11-22 23:07:15,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 23:07:15,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 169 [2023-11-22 23:07:15,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:07:16,003 INFO L225 Difference]: With dead ends: 3958 [2023-11-22 23:07:16,003 INFO L226 Difference]: Without dead ends: 2441 [2023-11-22 23:07:16,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:07:16,007 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 1207 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 2863 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 3549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 2863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-22 23:07:16,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 2664 Invalid, 3549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 2863 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-22 23:07:16,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2023-11-22 23:07:16,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2050. [2023-11-22 23:07:16,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 1441 states have (on average 1.4510756419153366) internal successors, (2091), 1482 states have internal predecessors, (2091), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 23:07:16,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 3050 transitions. [2023-11-22 23:07:16,157 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 3050 transitions. Word has length 169 [2023-11-22 23:07:16,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:07:16,157 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 3050 transitions. [2023-11-22 23:07:16,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-22 23:07:16,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 3050 transitions. [2023-11-22 23:07:16,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 23:07:16,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:07:16,168 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 23:07:16,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-22 23:07:16,168 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:07:16,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:07:16,169 INFO L85 PathProgramCache]: Analyzing trace with hash -618150575, now seen corresponding path program 1 times [2023-11-22 23:07:16,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:07:16,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623920694] [2023-11-22 23:07:16,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:07:16,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:07:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:07:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:07:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:07:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:07:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:07:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:07:16,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:07:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:07:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:07:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:07:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:16,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-22 23:07:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:07:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 23:07:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 23:07:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-22 23:07:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-22 23:07:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-22 23:07:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 23:07:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-22 23:07:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-22 23:07:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-22 23:07:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:16,947 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 23:07:16,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:07:16,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623920694] [2023-11-22 23:07:16,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623920694] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:07:16,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929180069] [2023-11-22 23:07:16,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:07:16,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:07:16,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:07:16,952 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 23:07:16,976 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 23:07:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:17,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-22 23:07:17,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:07:17,501 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-22 23:07:17,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 23:07:17,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929180069] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:07:17,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 23:07:17,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 10 [2023-11-22 23:07:17,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694201918] [2023-11-22 23:07:17,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:07:17,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 23:07:17,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:07:17,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 23:07:17,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-22 23:07:17,504 INFO L87 Difference]: Start difference. First operand 2050 states and 3050 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 23:07:19,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:07:21,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:07:23,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:07:25,135 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 23:07:25,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:07:25,578 INFO L93 Difference]: Finished difference Result 3587 states and 5361 transitions. [2023-11-22 23:07:25,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 23:07:25,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) Word has length 176 [2023-11-22 23:07:25,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:07:25,585 INFO L225 Difference]: With dead ends: 3587 [2023-11-22 23:07:25,585 INFO L226 Difference]: Without dead ends: 2063 [2023-11-22 23:07:25,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-22 23:07:25,590 INFO L413 NwaCegarLoop]: 1408 mSDtfsCounter, 773 mSDsluCounter, 7003 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 8411 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-22 23:07:25,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 8411 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 654 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2023-11-22 23:07:25,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2023-11-22 23:07:25,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 2062. [2023-11-22 23:07:25,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2062 states, 1447 states have (on average 1.4492052522460264) internal successors, (2097), 1491 states have internal predecessors, (2097), 480 states have call successors, (480), 129 states have call predecessors, (480), 134 states have return successors, (497), 477 states have call predecessors, (497), 479 states have call successors, (497) [2023-11-22 23:07:25,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 3074 transitions. [2023-11-22 23:07:25,730 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 3074 transitions. Word has length 176 [2023-11-22 23:07:25,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:07:25,730 INFO L495 AbstractCegarLoop]: Abstraction has 2062 states and 3074 transitions. [2023-11-22 23:07:25,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 4 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 23:07:25,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 3074 transitions. [2023-11-22 23:07:25,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-22 23:07:25,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:07:25,739 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 23:07:25,765 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 23:07:25,952 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,SelfDestructingSolverStorable14 [2023-11-22 23:07:25,953 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:07:25,953 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:07:25,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1629349046, now seen corresponding path program 1 times [2023-11-22 23:07:25,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:07:25,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822533284] [2023-11-22 23:07:25,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:07:25,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:07:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:07:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:07:26,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:07:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:07:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:07:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:07:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:07:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:07:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:07:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:07:26,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:26,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:07:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:07:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 23:07:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 23:07:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 23:07:26,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-22 23:07:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 23:07:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 23:07:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-22 23:07:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-22 23:07:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 23:07:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-22 23:07:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:26,447 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-22 23:07:26,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:07:26,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822533284] [2023-11-22 23:07:26,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822533284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 23:07:26,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 23:07:26,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-22 23:07:26,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104345997] [2023-11-22 23:07:26,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 23:07:26,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-22 23:07:26,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:07:26,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-22 23:07:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-22 23:07:26,450 INFO L87 Difference]: Start difference. First operand 2062 states and 3074 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-22 23:07:32,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 23:07:32,123 INFO L93 Difference]: Finished difference Result 3974 states and 6019 transitions. [2023-11-22 23:07:32,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 23:07:32,124 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 182 [2023-11-22 23:07:32,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 23:07:32,132 INFO L225 Difference]: With dead ends: 3974 [2023-11-22 23:07:32,132 INFO L226 Difference]: Without dead ends: 2447 [2023-11-22 23:07:32,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2023-11-22 23:07:32,137 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 1154 mSDsluCounter, 3168 mSDsCounter, 0 mSdLazyCounter, 5036 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 3907 SdHoareTripleChecker+Invalid, 5704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 5036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-22 23:07:32,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 3907 Invalid, 5704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 5036 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-22 23:07:32,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2023-11-22 23:07:32,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2064. [2023-11-22 23:07:32,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2064 states, 1449 states have (on average 1.448585231193927) internal successors, (2099), 1492 states have internal predecessors, (2099), 480 states have call successors, (480), 129 states have call predecessors, (480), 134 states have return successors, (497), 478 states have call predecessors, (497), 479 states have call successors, (497) [2023-11-22 23:07:32,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2064 states to 2064 states and 3076 transitions. [2023-11-22 23:07:32,267 INFO L78 Accepts]: Start accepts. Automaton has 2064 states and 3076 transitions. Word has length 182 [2023-11-22 23:07:32,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 23:07:32,267 INFO L495 AbstractCegarLoop]: Abstraction has 2064 states and 3076 transitions. [2023-11-22 23:07:32,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (25), 5 states have call predecessors, (25), 2 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-22 23:07:32,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states and 3076 transitions. [2023-11-22 23:07:32,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-22 23:07:32,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 23:07:32,276 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 23:07:32,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-22 23:07:32,276 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 23:07:32,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 23:07:32,277 INFO L85 PathProgramCache]: Analyzing trace with hash -314648911, now seen corresponding path program 1 times [2023-11-22 23:07:32,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 23:07:32,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885652023] [2023-11-22 23:07:32,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:07:32,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 23:07:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 23:07:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 23:07:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 23:07:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 23:07:38,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 23:07:38,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 23:07:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 23:07:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 23:07:38,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 23:07:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 23:07:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 23:07:38,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:07:38,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 23:07:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 23:07:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 23:07:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 23:07:38,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 23:07:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 23:07:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-22 23:07:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-22 23:07:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 23:07:38,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-22 23:07:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-22 23:07:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 23:07:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-22 23:07:38,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 23:07:38,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885652023] [2023-11-22 23:07:38,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885652023] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:07:38,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540946996] [2023-11-22 23:07:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 23:07:38,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 23:07:38,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 23:07:38,644 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 23:07:38,652 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 23:07:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 23:07:39,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 215 conjunts are in the unsatisfiable core [2023-11-22 23:07:39,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 23:07:39,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-22 23:07:39,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 23:07:40,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 23:07:40,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:07:40,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:07:40,351 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-22 23:07:40,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 16 [2023-11-22 23:07:40,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:07:40,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2023-11-22 23:07:40,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 23:07:40,530 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-22 23:07:40,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-22 23:07:40,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 23:07:41,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 23:07:41,031 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 23:07:41,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 28 [2023-11-22 23:07:41,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 23:07:41,617 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 23:07:41,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 21 [2023-11-22 23:07:41,633 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-11-22 23:07:41,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 56 treesize of output 60 [2023-11-22 23:07:41,643 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 23:07:41,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 28 [2023-11-22 23:07:42,447 INFO L349 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2023-11-22 23:07:42,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 18 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 29 case distinctions, treesize of input 87 treesize of output 117 [2023-11-22 23:07:42,529 INFO L349 Elim1Store]: treesize reduction 40, result has 50.6 percent of original size [2023-11-22 23:07:42,529 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 5 case distinctions, treesize of input 48 treesize of output 72 [2023-11-22 23:07:42,566 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2023-11-22 23:07:42,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 61 treesize of output 79 [2023-11-22 23:07:42,594 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-11-22 23:07:42,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 70 [2023-11-22 23:07:42,636 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2023-11-22 23:07:42,637 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 3 case distinctions, treesize of input 62 treesize of output 53 [2023-11-22 23:07:42,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 21 treesize of output 18 [2023-11-22 23:07:42,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 21 treesize of output 18 [2023-11-22 23:07:42,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 54 [2023-11-22 23:07:43,484 INFO L349 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2023-11-22 23:07:43,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 111 treesize of output 109 [2023-11-22 23:07:43,507 INFO L349 Elim1Store]: treesize reduction 100, result has 1.0 percent of original size [2023-11-22 23:07:43,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 10 new quantified variables, introduced 32 case distinctions, treesize of input 145 treesize of output 151 [2023-11-22 23:07:43,530 INFO L349 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2023-11-22 23:07:43,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 62 [2023-11-22 23:07:43,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:07:43,564 INFO L349 Elim1Store]: treesize reduction 45, result has 10.0 percent of original size [2023-11-22 23:07:43,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 91 treesize of output 78 [2023-11-22 23:07:43,588 INFO L349 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2023-11-22 23:07:43,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 88 treesize of output 76 [2023-11-22 23:07:43,610 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2023-11-22 23:07:43,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 44 [2023-11-22 23:07:44,468 INFO L349 Elim1Store]: treesize reduction 100, result has 1.0 percent of original size [2023-11-22 23:07:44,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 32 case distinctions, treesize of input 144 treesize of output 136 [2023-11-22 23:07:44,499 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2023-11-22 23:07:44,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 98 treesize of output 82 [2023-11-22 23:07:44,519 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-22 23:07:44,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 41 [2023-11-22 23:07:45,552 INFO L349 Elim1Store]: treesize reduction 251, result has 3.5 percent of original size [2023-11-22 23:07:45,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 9 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 146 treesize of output 152 [2023-11-22 23:07:45,589 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2023-11-22 23:07:45,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 98 treesize of output 82 [2023-11-22 23:07:45,610 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-22 23:07:45,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 41 [2023-11-22 23:07:47,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:07:47,431 INFO L349 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2023-11-22 23:07:47,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 176 treesize of output 112 [2023-11-22 23:07:47,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:07:47,448 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 23:07:47,457 INFO L349 Elim1Store]: treesize reduction 80, result has 1.2 percent of original size [2023-11-22 23:07:47,458 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 38 case distinctions, treesize of input 154 treesize of output 70 [2023-11-22 23:07:47,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:07:47,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 23:07:47,471 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-11-22 23:07:47,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 40 [2023-11-22 23:07:47,483 INFO L349 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2023-11-22 23:07:47,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 13 [2023-11-22 23:07:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 65 proven. 13 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-22 23:07:47,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 23:07:47,625 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1009 (Array Int Int)) (v_ArrVal_1008 (Array Int Int)) (v_ArrVal_1010 (Array Int Int))) (let ((.cse0 (mod (let ((.cse1 (+ |c_ULTIMATE.start_slip_open_~sl~12#1.offset| 12))) (select (select (store |c_#memory_int| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1008) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1009) |c_ULTIMATE.start_slip_open_~sl~12#1.base|) .cse1)) (+ 112 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1010) |c_ULTIMATE.start_slip_open_~sl~12#1.base|) .cse1)))) 4294967296))) (or (< .cse0 1) (< 2147483647 .cse0)))) is different from false [2023-11-22 23:07:47,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540946996] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 23:07:47,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 23:07:47,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 39] total 69 [2023-11-22 23:07:47,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074829428] [2023-11-22 23:07:47,640 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 23:07:47,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2023-11-22 23:07:47,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 23:07:47,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2023-11-22 23:07:47,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=4461, Unknown=1, NotChecked=134, Total=4830 [2023-11-22 23:07:47,644 INFO L87 Difference]: Start difference. First operand 2064 states and 3076 transitions. Second operand has 69 states, 59 states have (on average 3.440677966101695) internal successors, (203), 51 states have internal predecessors, (203), 22 states have call successors, (47), 14 states have call predecessors, (47), 17 states have return successors, (39), 25 states have call predecessors, (39), 21 states have call successors, (39) [2023-11-22 23:07:56,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:07:59,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:08:01,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:08:05,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:08:10,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:08:18,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:09:07,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:09:10,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:09:16,635 WARN L539 Checker$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 23:09:17,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:09:20,462 WARN L539 Checker$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 23:09:23,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:09:25,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:09:26,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:09:30,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 23:09:35,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 23:09:41,018 WARN L539 Checker$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 23:09:44,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] Killed by 15