./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 true --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fba957c5 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 true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-fba957c-m [2023-11-23 10:07:01,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 10:07:01,882 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 10:07:01,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 10:07:01,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 10:07:01,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 10:07:01,903 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 10:07:01,904 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 10:07:01,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 10:07:01,908 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 10:07:01,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 10:07:01,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 10:07:01,909 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 10:07:01,910 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 10:07:01,910 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 10:07:01,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 10:07:01,911 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 10:07:01,911 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 10:07:01,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 10:07:01,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 10:07:01,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 10:07:01,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 10:07:01,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 10:07:01,912 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 10:07:01,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 10:07:01,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 10:07:01,913 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 10:07:01,914 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 10:07:01,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:07:01,914 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 10:07:01,915 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 10:07:01,915 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 10:07:01,915 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 10:07:01,915 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 10:07:01,915 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 10:07:01,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 10:07:01,916 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 10:07:01,916 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 10:07:01,916 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 10:07:01,916 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6063bfeeaa4a025ac67d1a7a9b5cc20b489e34fc9db0d4dd9fcdda86c75b9c5e Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 10:07:02,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 10:07:02,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 10:07:02,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 10:07:02,157 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 10:07:02,158 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 10:07:02,158 INFO L431 ainManager$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 [2023-11-23 10:07:03,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 10:07:03,566 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 10:07:03,567 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 [2023-11-23 10:07:03,598 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d13183e2/de5c29fa7efc4ebf8758d042b2a4d2b3/FLAGc7b976b32 [2023-11-23 10:07:03,613 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d13183e2/de5c29fa7efc4ebf8758d042b2a4d2b3 [2023-11-23 10:07:03,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 10:07:03,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 10:07:03,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 10:07:03,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 10:07:03,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 10:07:03,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:07:03" (1/1) ... [2023-11-23 10:07:03,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46d1f759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:03, skipping insertion in model container [2023-11-23 10:07:03,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:07:03" (1/1) ... [2023-11-23 10:07:03,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 10:07:04,171 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] [2023-11-23 10:07:04,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:07:04,647 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 10:07:04,713 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] [2023-11-23 10:07:04,715 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] [2023-11-23 10:07:04,715 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] [2023-11-23 10:07:04,716 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] [2023-11-23 10:07:04,723 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] [2023-11-23 10:07:04,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4838] [2023-11-23 10:07:04,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4841] [2023-11-23 10:07:04,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4844] [2023-11-23 10:07:04,726 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4847] [2023-11-23 10:07:04,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5229] [2023-11-23 10:07:04,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5233] [2023-11-23 10:07:04,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5237] [2023-11-23 10:07:04,748 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5241] [2023-11-23 10:07:04,748 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] [2023-11-23 10:07:04,749 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] [2023-11-23 10:07:04,751 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] [2023-11-23 10:07:04,752 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] [2023-11-23 10:07:04,752 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] [2023-11-23 10:07:04,753 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] [2023-11-23 10:07:04,753 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] [2023-11-23 10:07:04,753 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] [2023-11-23 10:07:04,754 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] [2023-11-23 10:07:04,754 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] [2023-11-23 10:07:04,754 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] [2023-11-23 10:07:04,760 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] [2023-11-23 10:07:04,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5360] [2023-11-23 10:07:04,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5364] [2023-11-23 10:07:04,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5368] [2023-11-23 10:07:04,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5372] [2023-11-23 10:07:04,763 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] [2023-11-23 10:07:04,763 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] [2023-11-23 10:07:04,763 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] [2023-11-23 10:07:04,763 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] [2023-11-23 10:07:04,764 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] [2023-11-23 10:07:04,764 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] [2023-11-23 10:07:04,764 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] [2023-11-23 10:07:04,764 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] [2023-11-23 10:07:04,768 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] [2023-11-23 10:07:04,769 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] [2023-11-23 10:07:04,769 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] [2023-11-23 10:07:04,770 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] [2023-11-23 10:07:04,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5515] [2023-11-23 10:07:04,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5519] [2023-11-23 10:07:04,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5523] [2023-11-23 10:07:04,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5527] [2023-11-23 10:07:04,775 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] [2023-11-23 10:07:04,775 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] [2023-11-23 10:07:04,776 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] [2023-11-23 10:07:04,777 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] [2023-11-23 10:07:04,777 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] [2023-11-23 10:07:04,777 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] [2023-11-23 10:07:04,778 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] [2023-11-23 10:07:04,778 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] [2023-11-23 10:07:04,852 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] [2023-11-23 10:07:04,853 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] [2023-11-23 10:07:04,853 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] [2023-11-23 10:07:04,853 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] [2023-11-23 10:07:04,854 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] [2023-11-23 10:07:04,854 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] [2023-11-23 10:07:04,854 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] [2023-11-23 10:07:04,854 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] [2023-11-23 10:07:04,855 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] [2023-11-23 10:07:04,855 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] [2023-11-23 10:07:04,856 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] [2023-11-23 10:07:04,856 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] [2023-11-23 10:07:04,856 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] [2023-11-23 10:07:04,857 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] [2023-11-23 10:07:04,858 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] [2023-11-23 10:07:04,860 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] [2023-11-23 10:07:04,862 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] [2023-11-23 10:07:04,862 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] [2023-11-23 10:07:04,862 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] [2023-11-23 10:07:04,863 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] [2023-11-23 10:07:04,863 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] [2023-11-23 10:07:04,863 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] [2023-11-23 10:07:04,864 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] [2023-11-23 10:07:04,864 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] [2023-11-23 10:07:04,864 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] [2023-11-23 10:07:04,865 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] [2023-11-23 10:07:04,865 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] [2023-11-23 10:07:04,866 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] [2023-11-23 10:07:04,866 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] [2023-11-23 10:07:04,867 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] [2023-11-23 10:07:04,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 10:07:05,027 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:07:05,028 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:07:05,028 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 10:07:05,033 INFO L206 MainTranslator]: Completed translation [2023-11-23 10:07:05,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05 WrapperNode [2023-11-23 10:07:05,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 10:07:05,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 10:07:05,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 10:07:05,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 10:07:05,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,191 INFO L138 Inliner]: procedures = 184, calls = 845, calls flagged for inlining = 92, calls inlined = 90, statements flattened = 3344 [2023-11-23 10:07:05,192 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 10:07:05,192 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 10:07:05,192 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 10:07:05,193 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 10:07:05,201 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,219 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,569 INFO L175 MemorySlicer]: Split 419 memory accesses to 11 slices as follows [2, 4, 2, 0, 0, 35, 20, 3, 5, 1, 347]. 83 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 0, 0, 0, 0, 35, 20, 0, 5, 0, 5]. The 121 writes are split as follows [0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 120]. [2023-11-23 10:07:05,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,570 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,655 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,694 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,715 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 10:07:05,716 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 10:07:05,716 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 10:07:05,716 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 10:07:05,717 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (1/1) ... [2023-11-23 10:07:05,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 10:07:05,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:07:05,750 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) [2023-11-23 10:07:05,780 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 [2023-11-23 10:07:05,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2023-11-23 10:07:05,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2023-11-23 10:07:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2023-11-23 10:07:05,814 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2023-11-23 10:07:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-23 10:07:05,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-23 10:07:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-23 10:07:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-23 10:07:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-23 10:07:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-23 10:07:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-23 10:07:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-23 10:07:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-23 10:07:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-23 10:07:05,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-23 10:07:05,816 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-23 10:07:05,816 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-23 10:07:05,816 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-23 10:07:05,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-23 10:07:05,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-23 10:07:05,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-23 10:07:05,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-23 10:07:05,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-23 10:07:05,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-23 10:07:05,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-23 10:07:05,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-23 10:07:05,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-23 10:07:05,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-23 10:07:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-23 10:07:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 10:07:05,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 10:07:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 10:07:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 10:07:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 10:07:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 10:07:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 10:07:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 10:07:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-23 10:07:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-23 10:07:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-23 10:07:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 10:07:05,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 10:07:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 10:07:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 10:07:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 10:07:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 10:07:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 10:07:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 10:07:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 10:07:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 10:07:05,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 10:07:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 10:07:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 10:07:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-23 10:07:05,822 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-23 10:07:05,822 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 10:07:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 10:07:05,823 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2023-11-23 10:07:05,823 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2023-11-23 10:07:05,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-23 10:07:05,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-23 10:07:05,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-23 10:07:05,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-23 10:07:05,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-23 10:07:05,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-23 10:07:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-23 10:07:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-23 10:07:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-23 10:07:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-23 10:07:05,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-23 10:07:05,827 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-23 10:07:05,827 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-23 10:07:05,828 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-23 10:07:05,828 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-23 10:07:05,828 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-23 10:07:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-23 10:07:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-23 10:07:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-23 10:07:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-23 10:07:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-23 10:07:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-23 10:07:05,833 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 10:07:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 10:07:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 10:07:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 10:07:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 10:07:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 10:07:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-23 10:07:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-23 10:07:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 10:07:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 10:07:05,834 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2023-11-23 10:07:05,835 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2023-11-23 10:07:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 10:07:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 10:07:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 10:07:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 10:07:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 10:07:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 10:07:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 10:07:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 10:07:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 10:07:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 10:07:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 10:07:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 10:07:05,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 10:07:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 10:07:05,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 10:07:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 10:07:05,837 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 10:07:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 10:07:05,837 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 10:07:05,837 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-23 10:07:05,838 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-23 10:07:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-23 10:07:05,838 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-23 10:07:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 10:07:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-23 10:07:05,838 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-23 10:07:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2023-11-23 10:07:05,838 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2023-11-23 10:07:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2023-11-23 10:07:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2023-11-23 10:07:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 10:07:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-23 10:07:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-23 10:07:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2023-11-23 10:07:05,839 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2023-11-23 10:07:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 10:07:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 10:07:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 10:07:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 10:07:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 10:07:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 10:07:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 10:07:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 10:07:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 10:07:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 10:07:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-23 10:07:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-23 10:07:05,840 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 10:07:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 10:07:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-11-23 10:07:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-11-23 10:07:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2023-11-23 10:07:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2023-11-23 10:07:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-23 10:07:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-23 10:07:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2023-11-23 10:07:05,841 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2023-11-23 10:07:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 10:07:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 10:07:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 10:07:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 10:07:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 10:07:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 10:07:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 10:07:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 10:07:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 10:07:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-23 10:07:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-23 10:07:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-23 10:07:05,843 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-23 10:07:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 10:07:05,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 10:07:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 10:07:05,843 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 10:07:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2023-11-23 10:07:05,844 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2023-11-23 10:07:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2023-11-23 10:07:05,844 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2023-11-23 10:07:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 10:07:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-23 10:07:05,844 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-23 10:07:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 10:07:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 10:07:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 10:07:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 10:07:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 10:07:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 10:07:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 10:07:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 10:07:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 10:07:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-23 10:07:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-23 10:07:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2023-11-23 10:07:05,846 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2023-11-23 10:07:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-23 10:07:05,846 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-23 10:07:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 10:07:05,846 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 10:07:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2023-11-23 10:07:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2023-11-23 10:07:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 10:07:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 10:07:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 10:07:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 10:07:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2023-11-23 10:07:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2023-11-23 10:07:05,852 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-23 10:07:05,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-23 10:07:05,853 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 10:07:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 10:07:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 10:07:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 10:07:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 10:07:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 10:07:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 10:07:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 10:07:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 10:07:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 10:07:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 10:07:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-23 10:07:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-11-23 10:07:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-23 10:07:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-23 10:07:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-23 10:07:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-23 10:07:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-23 10:07:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 10:07:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 10:07:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 10:07:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 10:07:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2023-11-23 10:07:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2023-11-23 10:07:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-11-23 10:07:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-11-23 10:07:06,351 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 10:07:06,355 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 10:07:06,543 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 10:07:08,506 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 10:07:08,614 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 10:07:08,615 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 10:07:08,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:07:08 BoogieIcfgContainer [2023-11-23 10:07:08,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 10:07:08,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 10:07:08,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 10:07:08,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 10:07:08,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:07:03" (1/3) ... [2023-11-23 10:07:08,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eec7a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:07:08, skipping insertion in model container [2023-11-23 10:07:08,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:05" (2/3) ... [2023-11-23 10:07:08,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eec7a39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:07:08, skipping insertion in model container [2023-11-23 10:07:08,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:07:08" (3/3) ... [2023-11-23 10:07:08,623 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2023-11-23 10:07:08,640 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 10:07:08,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 10:07:08,762 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 10:07:08,767 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;@1b6f03d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 10:07:08,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 10:07:08,776 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) [2023-11-23 10:07:08,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-23 10:07:08,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:07:08,793 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] [2023-11-23 10:07:08,793 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:07:08,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:07:08,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2035189210, now seen corresponding path program 1 times [2023-11-23 10:07:08,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:07:08,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134449850] [2023-11-23 10:07:08,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:07:08,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:07:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:09,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:09,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:07:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:09,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:07:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:09,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:07:09,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:09,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:07:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:09,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:07:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:09,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:07:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:09,270 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-23 10:07:09,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:07:09,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134449850] [2023-11-23 10:07:09,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134449850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:07:09,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:07:09,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 10:07:09,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846767983] [2023-11-23 10:07:09,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:07:09,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 10:07:09,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:07:09,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 10:07:09,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 10:07:09,314 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) [2023-11-23 10:07:13,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:07:14,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:07:14,580 INFO L93 Difference]: Finished difference Result 2767 states and 4311 transitions. [2023-11-23 10:07:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 10:07:14,582 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 [2023-11-23 10:07:14,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:07:14,621 INFO L225 Difference]: With dead ends: 2767 [2023-11-23 10:07:14,621 INFO L226 Difference]: Without dead ends: 1667 [2023-11-23 10:07:14,630 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 [2023-11-23 10:07:14,632 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 1386 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-23 10:07:14,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 2592 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-23 10:07:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2023-11-23 10:07:14,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1515. [2023-11-23 10:07:14,818 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) [2023-11-23 10:07:14,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2287 transitions. [2023-11-23 10:07:14,827 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2287 transitions. Word has length 60 [2023-11-23 10:07:14,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:07:14,828 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 2287 transitions. [2023-11-23 10:07:14,829 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) [2023-11-23 10:07:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2287 transitions. [2023-11-23 10:07:14,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-23 10:07:14,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:07:14,842 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] [2023-11-23 10:07:14,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 10:07:14,843 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:07:14,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:07:14,846 INFO L85 PathProgramCache]: Analyzing trace with hash 581811127, now seen corresponding path program 1 times [2023-11-23 10:07:14,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:07:14,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901253996] [2023-11-23 10:07:14,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:07:14,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:07:14,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:07:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:07:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:07:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:07:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:07:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:07:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:07:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:07:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:07:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 10:07:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 10:07:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:07:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:15,170 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-23 10:07:15,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:07:15,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901253996] [2023-11-23 10:07:15,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901253996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:07:15,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:07:15,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:07:15,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929130994] [2023-11-23 10:07:15,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:07:15,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:07:15,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:07:15,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:07:15,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:07:15,173 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) [2023-11-23 10:07:17,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:07:17,687 INFO L93 Difference]: Finished difference Result 3193 states and 4875 transitions. [2023-11-23 10:07:17,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 10:07:17,687 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 [2023-11-23 10:07:17,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:07:17,697 INFO L225 Difference]: With dead ends: 3193 [2023-11-23 10:07:17,697 INFO L226 Difference]: Without dead ends: 1699 [2023-11-23 10:07:17,704 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 [2023-11-23 10:07:17,705 INFO L413 NwaCegarLoop]: 978 mSDtfsCounter, 2197 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2330 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-23 10:07:17,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2330 Valid, 1535 Invalid, 1817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [821 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-23 10:07:17,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2023-11-23 10:07:17,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1515. [2023-11-23 10:07:17,773 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) [2023-11-23 10:07:17,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2285 transitions. [2023-11-23 10:07:17,783 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2285 transitions. Word has length 110 [2023-11-23 10:07:17,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:07:17,785 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 2285 transitions. [2023-11-23 10:07:17,785 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) [2023-11-23 10:07:17,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2285 transitions. [2023-11-23 10:07:17,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-23 10:07:17,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:07:17,789 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] [2023-11-23 10:07:17,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 10:07:17,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:07:17,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:07:17,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1142510905, now seen corresponding path program 1 times [2023-11-23 10:07:17,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:07:17,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232601707] [2023-11-23 10:07:17,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:07:17,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:07:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:07:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:07:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:07:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:07:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:07:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:07:18,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:07:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:07:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:07:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 10:07:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 10:07:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:07:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:18,132 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-23 10:07:18,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:07:18,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232601707] [2023-11-23 10:07:18,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232601707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:07:18,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:07:18,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 10:07:18,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062335347] [2023-11-23 10:07:18,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:07:18,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:07:18,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:07:18,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:07:18,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:07:18,135 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) [2023-11-23 10:07:19,873 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 [] [2023-11-23 10:07:23,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:07:23,575 INFO L93 Difference]: Finished difference Result 2174 states and 3437 transitions. [2023-11-23 10:07:23,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 10:07:23,576 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 [2023-11-23 10:07:23,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:07:23,586 INFO L225 Difference]: With dead ends: 2174 [2023-11-23 10:07:23,587 INFO L226 Difference]: Without dead ends: 2171 [2023-11-23 10:07:23,588 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 [2023-11-23 10:07:23,590 INFO L413 NwaCegarLoop]: 1315 mSDtfsCounter, 880 mSDsluCounter, 3531 mSDsCounter, 0 mSdLazyCounter, 3028 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 4846 SdHoareTripleChecker+Invalid, 3277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 3028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-23 10:07:23,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 4846 Invalid, 3277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 3028 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-23 10:07:23,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2023-11-23 10:07:23,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 1517. [2023-11-23 10:07:23,643 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) [2023-11-23 10:07:23,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2287 transitions. [2023-11-23 10:07:23,651 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2287 transitions. Word has length 110 [2023-11-23 10:07:23,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:07:23,653 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 2287 transitions. [2023-11-23 10:07:23,653 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) [2023-11-23 10:07:23,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2287 transitions. [2023-11-23 10:07:23,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-23 10:07:23,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:07:23,657 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] [2023-11-23 10:07:23,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 10:07:23,658 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:07:23,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:07:23,658 INFO L85 PathProgramCache]: Analyzing trace with hash 838864055, now seen corresponding path program 1 times [2023-11-23 10:07:23,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:07:23,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215503007] [2023-11-23 10:07:23,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:07:23,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:07:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:07:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:07:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:07:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:07:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:07:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:07:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:07:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:07:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:07:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 10:07:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:23,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 10:07:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:07:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-23 10:07:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:23,890 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-23 10:07:23,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:07:23,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215503007] [2023-11-23 10:07:23,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215503007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:07:23,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:07:23,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 10:07:23,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810032534] [2023-11-23 10:07:23,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:07:23,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:07:23,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:07:23,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:07:23,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:07:23,892 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) [2023-11-23 10:07:25,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:07:27,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:07:27,832 INFO L93 Difference]: Finished difference Result 3206 states and 4890 transitions. [2023-11-23 10:07:27,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 10:07:27,833 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 [2023-11-23 10:07:27,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:07:27,840 INFO L225 Difference]: With dead ends: 3206 [2023-11-23 10:07:27,840 INFO L226 Difference]: Without dead ends: 1710 [2023-11-23 10:07:27,844 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 [2023-11-23 10:07:27,845 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 2230 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 1927 mSolverCounterSat, 833 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 2088 SdHoareTripleChecker+Invalid, 2760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 1927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-23 10:07:27,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 2088 Invalid, 2760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 1927 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-23 10:07:27,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2023-11-23 10:07:27,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1518. [2023-11-23 10:07:27,886 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) [2023-11-23 10:07:27,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2288 transitions. [2023-11-23 10:07:27,892 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2288 transitions. Word has length 119 [2023-11-23 10:07:27,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:07:27,893 INFO L495 AbstractCegarLoop]: Abstraction has 1518 states and 2288 transitions. [2023-11-23 10:07:27,893 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) [2023-11-23 10:07:27,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2288 transitions. [2023-11-23 10:07:27,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-23 10:07:27,898 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:07:27,898 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] [2023-11-23 10:07:27,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 10:07:27,899 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:07:27,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:07:27,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2059024521, now seen corresponding path program 1 times [2023-11-23 10:07:27,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:07:27,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117911193] [2023-11-23 10:07:27,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:07:27,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:07:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:07:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:07:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:07:28,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:07:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:07:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:07:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:07:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:07:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:07:28,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 10:07:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:28,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 10:07:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:07:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 10:07:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:28,160 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-23 10:07:28,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:07:28,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117911193] [2023-11-23 10:07:28,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117911193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:07:28,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:07:28,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 10:07:28,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439510456] [2023-11-23 10:07:28,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:07:28,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 10:07:28,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:07:28,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 10:07:28,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-23 10:07:28,163 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) [2023-11-23 10:07:29,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:07:33,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:07:33,492 INFO L93 Difference]: Finished difference Result 2190 states and 3459 transitions. [2023-11-23 10:07:33,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 10:07:33,493 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 [2023-11-23 10:07:33,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:07:33,503 INFO L225 Difference]: With dead ends: 2190 [2023-11-23 10:07:33,503 INFO L226 Difference]: Without dead ends: 2187 [2023-11-23 10:07:33,521 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 [2023-11-23 10:07:33,521 INFO L413 NwaCegarLoop]: 1366 mSDtfsCounter, 1442 mSDsluCounter, 4022 mSDsCounter, 0 mSdLazyCounter, 3438 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 5388 SdHoareTripleChecker+Invalid, 3955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 3438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-23 10:07:33,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1662 Valid, 5388 Invalid, 3955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 3438 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-23 10:07:33,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2023-11-23 10:07:33,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1520. [2023-11-23 10:07:33,604 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) [2023-11-23 10:07:33,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2291 transitions. [2023-11-23 10:07:33,609 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2291 transitions. Word has length 120 [2023-11-23 10:07:33,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:07:33,610 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 2291 transitions. [2023-11-23 10:07:33,610 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) [2023-11-23 10:07:33,610 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2291 transitions. [2023-11-23 10:07:33,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-23 10:07:33,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:07:33,616 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] [2023-11-23 10:07:33,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 10:07:33,617 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:07:33,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:07:33,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1629960520, now seen corresponding path program 1 times [2023-11-23 10:07:33,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:07:33,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761571321] [2023-11-23 10:07:33,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:07:33,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:07:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:07:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:07:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:07:33,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:07:33,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:07:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:07:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:07:33,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:07:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:07:33,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 10:07:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 10:07:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:07:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 10:07:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-23 10:07:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 10:07:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-23 10:07:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-23 10:07:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:33,829 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-23 10:07:33,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:07:33,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761571321] [2023-11-23 10:07:33,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761571321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:07:33,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:07:33,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:07:33,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950415781] [2023-11-23 10:07:33,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:07:33,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:07:33,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:07:33,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:07:33,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:07:33,832 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) [2023-11-23 10:07:36,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:07:41,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:07:41,052 INFO L93 Difference]: Finished difference Result 4849 states and 7408 transitions. [2023-11-23 10:07:41,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 10:07:41,053 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 [2023-11-23 10:07:41,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:07:41,070 INFO L225 Difference]: With dead ends: 4849 [2023-11-23 10:07:41,070 INFO L226 Difference]: Without dead ends: 3350 [2023-11-23 10:07:41,075 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 [2023-11-23 10:07:41,076 INFO L413 NwaCegarLoop]: 1445 mSDtfsCounter, 2014 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 2661 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 3745 SdHoareTripleChecker+Invalid, 3229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 2661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-23 10:07:41,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2242 Valid, 3745 Invalid, 3229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 2661 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-11-23 10:07:41,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2023-11-23 10:07:41,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 2979. [2023-11-23 10:07:41,196 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) [2023-11-23 10:07:41,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4490 transitions. [2023-11-23 10:07:41,204 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4490 transitions. Word has length 148 [2023-11-23 10:07:41,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:07:41,204 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4490 transitions. [2023-11-23 10:07:41,204 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) [2023-11-23 10:07:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4490 transitions. [2023-11-23 10:07:41,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-23 10:07:41,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:07:41,215 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] [2023-11-23 10:07:41,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 10:07:41,215 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:07:41,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:07:41,215 INFO L85 PathProgramCache]: Analyzing trace with hash 751438712, now seen corresponding path program 1 times [2023-11-23 10:07:41,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:07:41,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406998677] [2023-11-23 10:07:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:07:41,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:07:41,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:07:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:07:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:07:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:07:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:07:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:07:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:07:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:07:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:07:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 10:07:41,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-23 10:07:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-23 10:07:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-23 10:07:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-23 10:07:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:07:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-23 10:07:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 10:07:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-23 10:07:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:41,474 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-23 10:07:41,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:07:41,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406998677] [2023-11-23 10:07:41,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406998677] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:07:41,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:07:41,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 10:07:41,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793562783] [2023-11-23 10:07:41,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:07:41,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:07:41,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:07:41,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:07:41,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:07:41,477 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) [2023-11-23 10:07:45,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:07:45,493 INFO L93 Difference]: Finished difference Result 5256 states and 7969 transitions. [2023-11-23 10:07:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 10:07:45,494 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 [2023-11-23 10:07:45,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:07:45,503 INFO L225 Difference]: With dead ends: 5256 [2023-11-23 10:07:45,503 INFO L226 Difference]: Without dead ends: 2288 [2023-11-23 10:07:45,510 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 [2023-11-23 10:07:45,511 INFO L413 NwaCegarLoop]: 985 mSDtfsCounter, 544 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 3746 SdHoareTripleChecker+Invalid, 2982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-23 10:07:45,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 3746 Invalid, 2982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 2750 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-23 10:07:45,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2023-11-23 10:07:45,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 2026. [2023-11-23 10:07:45,598 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) [2023-11-23 10:07:45,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2026 states to 2026 states and 3029 transitions. [2023-11-23 10:07:45,604 INFO L78 Accepts]: Start accepts. Automaton has 2026 states and 3029 transitions. Word has length 150 [2023-11-23 10:07:45,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:07:45,604 INFO L495 AbstractCegarLoop]: Abstraction has 2026 states and 3029 transitions. [2023-11-23 10:07:45,604 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) [2023-11-23 10:07:45,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2026 states and 3029 transitions. [2023-11-23 10:07:45,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-23 10:07:45,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:07:45,611 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] [2023-11-23 10:07:45,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 10:07:45,611 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:07:45,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:07:45,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1368024194, now seen corresponding path program 1 times [2023-11-23 10:07:45,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:07:45,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312763927] [2023-11-23 10:07:45,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:07:45,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:07:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:07:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:07:45,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:07:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:07:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:07:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:07:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:07:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:07:45,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:07:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 10:07:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 10:07:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:07:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 10:07:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-23 10:07:45,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-23 10:07:45,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 10:07:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-23 10:07:45,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 10:07:45,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:07:45,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312763927] [2023-11-23 10:07:45,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312763927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:07:45,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:07:45,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 10:07:45,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381249266] [2023-11-23 10:07:45,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:07:45,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:07:45,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:07:45,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:07:45,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:07:45,905 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) [2023-11-23 10:07:48,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:07:50,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:07:51,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:07:51,981 INFO L93 Difference]: Finished difference Result 3803 states and 5782 transitions. [2023-11-23 10:07:51,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 10:07:51,981 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 [2023-11-23 10:07:51,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:07:51,993 INFO L225 Difference]: With dead ends: 3803 [2023-11-23 10:07:51,993 INFO L226 Difference]: Without dead ends: 2308 [2023-11-23 10:07:51,997 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 [2023-11-23 10:07:51,998 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 2229 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 854 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2363 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 854 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-23 10:07:51,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2363 Valid, 2072 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [854 Valid, 1940 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2023-11-23 10:07:52,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2023-11-23 10:07:52,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2029. [2023-11-23 10:07:52,098 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) [2023-11-23 10:07:52,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 3033 transitions. [2023-11-23 10:07:52,104 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 3033 transitions. Word has length 150 [2023-11-23 10:07:52,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:07:52,105 INFO L495 AbstractCegarLoop]: Abstraction has 2029 states and 3033 transitions. [2023-11-23 10:07:52,106 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) [2023-11-23 10:07:52,106 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 3033 transitions. [2023-11-23 10:07:52,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-23 10:07:52,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:07:52,113 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] [2023-11-23 10:07:52,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 10:07:52,113 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:07:52,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:07:52,114 INFO L85 PathProgramCache]: Analyzing trace with hash 843450457, now seen corresponding path program 1 times [2023-11-23 10:07:52,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:07:52,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068434144] [2023-11-23 10:07:52,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:07:52,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:07:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:07:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:07:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:07:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:07:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:07:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:07:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:07:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:07:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:07:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 10:07:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 10:07:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:07:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 10:07:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 10:07:52,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:07:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:07:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 10:07:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-23 10:07:52,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:07:52,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068434144] [2023-11-23 10:07:52,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068434144] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:07:52,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:07:52,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 10:07:52,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219238464] [2023-11-23 10:07:52,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:07:52,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 10:07:52,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:07:52,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 10:07:52,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 10:07:52,257 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) [2023-11-23 10:07:54,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:07:54,538 INFO L93 Difference]: Finished difference Result 4302 states and 6538 transitions. [2023-11-23 10:07:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 10:07:54,539 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 [2023-11-23 10:07:54,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:07:54,548 INFO L225 Difference]: With dead ends: 4302 [2023-11-23 10:07:54,548 INFO L226 Difference]: Without dead ends: 2294 [2023-11-23 10:07:54,553 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 [2023-11-23 10:07:54,554 INFO L413 NwaCegarLoop]: 979 mSDtfsCounter, 988 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-23 10:07:54,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 2407 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-23 10:07:54,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2023-11-23 10:07:54,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2029. [2023-11-23 10:07:54,636 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) [2023-11-23 10:07:54,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 3024 transitions. [2023-11-23 10:07:54,641 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 3024 transitions. Word has length 152 [2023-11-23 10:07:54,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:07:54,641 INFO L495 AbstractCegarLoop]: Abstraction has 2029 states and 3024 transitions. [2023-11-23 10:07:54,641 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) [2023-11-23 10:07:54,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 3024 transitions. [2023-11-23 10:07:54,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-23 10:07:54,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:07:54,648 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] [2023-11-23 10:07:54,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 10:07:54,649 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:07:54,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:07:54,649 INFO L85 PathProgramCache]: Analyzing trace with hash -778817517, now seen corresponding path program 1 times [2023-11-23 10:07:54,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:07:54,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999151333] [2023-11-23 10:07:54,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:07:54,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:07:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:54,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:07:54,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:07:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:07:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:07:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:07:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:07:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:07:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:07:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:07:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 10:07:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:07:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 10:07:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:07:54,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 10:07:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 10:07:54,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:07:54,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 10:07:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-23 10:07:54,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:54,919 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 10:07:54,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:07:54,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999151333] [2023-11-23 10:07:54,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999151333] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:07:54,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760856108] [2023-11-23 10:07:54,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:07:54,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:07:54,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:07:54,937 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) [2023-11-23 10:07:54,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 10:07:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:07:55,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 1169 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 10:07:55,430 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:07:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-23 10:07:55,630 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 10:07:55,788 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 10:07:55,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760856108] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 10:07:55,788 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 10:07:55,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 12 [2023-11-23 10:07:55,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962905160] [2023-11-23 10:07:55,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 10:07:55,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 10:07:55,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:07:55,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 10:07:55,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-23 10:07:55,790 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) [2023-11-23 10:07:59,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:07:59,861 INFO L93 Difference]: Finished difference Result 3849 states and 5842 transitions. [2023-11-23 10:07:59,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 10:07:59,861 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 [2023-11-23 10:07:59,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:07:59,870 INFO L225 Difference]: With dead ends: 3849 [2023-11-23 10:07:59,871 INFO L226 Difference]: Without dead ends: 2351 [2023-11-23 10:07:59,875 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 [2023-11-23 10:07:59,876 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 3312 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 1417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3447 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 3421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1417 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-23 10:07:59,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3447 Valid, 2215 Invalid, 3421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1417 Valid, 2004 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-23 10:07:59,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2023-11-23 10:07:59,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 2034. [2023-11-23 10:07:59,998 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) [2023-11-23 10:08:00,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2034 states to 2034 states and 3031 transitions. [2023-11-23 10:08:00,004 INFO L78 Accepts]: Start accepts. Automaton has 2034 states and 3031 transitions. Word has length 155 [2023-11-23 10:08:00,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:08:00,005 INFO L495 AbstractCegarLoop]: Abstraction has 2034 states and 3031 transitions. [2023-11-23 10:08:00,005 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) [2023-11-23 10:08:00,005 INFO L276 IsEmpty]: Start isEmpty. Operand 2034 states and 3031 transitions. [2023-11-23 10:08:00,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-23 10:08:00,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:08:00,013 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] [2023-11-23 10:08:00,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 10:08:00,229 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 [2023-11-23 10:08:00,229 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:08:00,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:08:00,230 INFO L85 PathProgramCache]: Analyzing trace with hash -176831250, now seen corresponding path program 2 times [2023-11-23 10:08:00,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:08:00,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803227739] [2023-11-23 10:08:00,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:08:00,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:08:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:08:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:08:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:08:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:08:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:08:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:08:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:08:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:08:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:08:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 10:08:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 10:08:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:08:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 10:08:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-23 10:08:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-23 10:08:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-23 10:08:00,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-23 10:08:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:00,508 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 10:08:00,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:08:00,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803227739] [2023-11-23 10:08:00,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803227739] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:08:00,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026788474] [2023-11-23 10:08:00,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 10:08:00,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:08:00,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:08:00,525 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) [2023-11-23 10:08:00,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 10:08:01,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 10:08:01,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 10:08:01,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 10:08:01,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:08:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-23 10:08:01,704 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 10:08:01,883 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 10:08:01,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026788474] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 10:08:01,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 10:08:01,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 8] total 21 [2023-11-23 10:08:01,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489760997] [2023-11-23 10:08:01,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 10:08:01,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-23 10:08:01,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:08:01,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-23 10:08:01,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2023-11-23 10:08:01,885 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) [2023-11-23 10:08:03,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:08:06,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:08:08,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:08:08,130 INFO L93 Difference]: Finished difference Result 3974 states and 6041 transitions. [2023-11-23 10:08:08,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 10:08:08,131 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 [2023-11-23 10:08:08,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:08:08,141 INFO L225 Difference]: With dead ends: 3974 [2023-11-23 10:08:08,141 INFO L226 Difference]: Without dead ends: 2471 [2023-11-23 10:08:08,146 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 [2023-11-23 10:08:08,146 INFO L413 NwaCegarLoop]: 980 mSDtfsCounter, 3585 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 3101 mSolverCounterSat, 1540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3743 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 4641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1540 IncrementalHoareTripleChecker+Valid, 3101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-23 10:08:08,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3743 Valid, 2980 Invalid, 4641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1540 Valid, 3101 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-11-23 10:08:08,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2023-11-23 10:08:08,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2046. [2023-11-23 10:08:08,233 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) [2023-11-23 10:08:08,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 3049 transitions. [2023-11-23 10:08:08,237 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 3049 transitions. Word has length 161 [2023-11-23 10:08:08,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:08:08,238 INFO L495 AbstractCegarLoop]: Abstraction has 2046 states and 3049 transitions. [2023-11-23 10:08:08,238 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) [2023-11-23 10:08:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 3049 transitions. [2023-11-23 10:08:08,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-23 10:08:08,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:08:08,245 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] [2023-11-23 10:08:08,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 10:08:08,452 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 [2023-11-23 10:08:08,453 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:08:08,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:08:08,453 INFO L85 PathProgramCache]: Analyzing trace with hash -2045188147, now seen corresponding path program 1 times [2023-11-23 10:08:08,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:08:08,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332114149] [2023-11-23 10:08:08,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:08:08,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:08:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:08,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:08,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:08:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:08,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:08:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:08,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:08:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:08,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:08:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:08,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:08:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:08,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:08:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:08,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:08:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:08:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:08,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:08:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:08,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-23 10:08:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:09,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:09,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-23 10:08:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:09,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-23 10:08:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:09,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-23 10:08:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:09,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-23 10:08:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:09,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 10:08:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:09,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-23 10:08:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:09,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 10:08:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:09,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-23 10:08:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:09,144 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-23 10:08:09,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:08:09,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332114149] [2023-11-23 10:08:09,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332114149] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:08:09,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319268801] [2023-11-23 10:08:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:08:09,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:08:09,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:08:09,146 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) [2023-11-23 10:08:09,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 10:08:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:09,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 10:08:09,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:08:09,656 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-23 10:08:09,656 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 10:08:09,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319268801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:08:09,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 10:08:09,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-23 10:08:09,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930546586] [2023-11-23 10:08:09,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:08:09,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 10:08:09,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:08:09,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 10:08:09,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-23 10:08:09,659 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) [2023-11-23 10:08:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:08:10,457 INFO L93 Difference]: Finished difference Result 3576 states and 5341 transitions. [2023-11-23 10:08:10,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 10:08:10,458 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 [2023-11-23 10:08:10,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:08:10,465 INFO L225 Difference]: With dead ends: 3576 [2023-11-23 10:08:10,465 INFO L226 Difference]: Without dead ends: 2046 [2023-11-23 10:08:10,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-23 10:08:10,470 INFO L413 NwaCegarLoop]: 1396 mSDtfsCounter, 2 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 10:08:10,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2790 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 10:08:10,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2046 states. [2023-11-23 10:08:10,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2046 to 2046. [2023-11-23 10:08:10,582 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) [2023-11-23 10:08:10,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 3046 transitions. [2023-11-23 10:08:10,586 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 3046 transitions. Word has length 163 [2023-11-23 10:08:10,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:08:10,586 INFO L495 AbstractCegarLoop]: Abstraction has 2046 states and 3046 transitions. [2023-11-23 10:08:10,586 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) [2023-11-23 10:08:10,586 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 3046 transitions. [2023-11-23 10:08:10,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-23 10:08:10,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:08:10,594 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] [2023-11-23 10:08:10,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-23 10:08:10,821 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 [2023-11-23 10:08:10,821 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:08:10,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:08:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1094517467, now seen corresponding path program 1 times [2023-11-23 10:08:10,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:08:10,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584478146] [2023-11-23 10:08:10,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:08:10,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:08:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:08:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:08:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:08:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:08:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:08:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:08:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:08:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:08:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:08:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:08:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 10:08:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 10:08:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:08:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 10:08:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-23 10:08:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 10:08:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-23 10:08:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 10:08:11,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,383 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-23 10:08:11,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:08:11,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584478146] [2023-11-23 10:08:11,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584478146] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:08:11,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381516290] [2023-11-23 10:08:11,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:08:11,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:08:11,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:08:11,385 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) [2023-11-23 10:08:11,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 10:08:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:11,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 1233 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 10:08:11,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:08:11,917 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-23 10:08:11,917 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 10:08:11,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381516290] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:08:11,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 10:08:11,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-11-23 10:08:11,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418555661] [2023-11-23 10:08:11,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:08:11,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 10:08:11,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:08:11,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 10:08:11,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-23 10:08:11,919 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) [2023-11-23 10:08:13,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:08:15,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:08:15,088 INFO L93 Difference]: Finished difference Result 4052 states and 6124 transitions. [2023-11-23 10:08:15,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 10:08:15,089 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 [2023-11-23 10:08:15,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:08:15,097 INFO L225 Difference]: With dead ends: 4052 [2023-11-23 10:08:15,097 INFO L226 Difference]: Without dead ends: 2537 [2023-11-23 10:08:15,101 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 [2023-11-23 10:08:15,101 INFO L413 NwaCegarLoop]: 1856 mSDtfsCounter, 362 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 5162 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-23 10:08:15,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 5162 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-23 10:08:15,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2023-11-23 10:08:15,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2048. [2023-11-23 10:08:15,217 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) [2023-11-23 10:08:15,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 3048 transitions. [2023-11-23 10:08:15,221 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 3048 transitions. Word has length 164 [2023-11-23 10:08:15,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:08:15,222 INFO L495 AbstractCegarLoop]: Abstraction has 2048 states and 3048 transitions. [2023-11-23 10:08:15,222 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) [2023-11-23 10:08:15,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 3048 transitions. [2023-11-23 10:08:15,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-23 10:08:15,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:08:15,228 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] [2023-11-23 10:08:15,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 10:08:15,441 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 [2023-11-23 10:08:15,441 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:08:15,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:08:15,442 INFO L85 PathProgramCache]: Analyzing trace with hash 984961275, now seen corresponding path program 1 times [2023-11-23 10:08:15,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:08:15,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243054824] [2023-11-23 10:08:15,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:08:15,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:08:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:08:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:08:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:08:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:08:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:08:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:08:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:08:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:08:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:08:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:08:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 10:08:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 10:08:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:08:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 10:08:15,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-23 10:08:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-23 10:08:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-23 10:08:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-23 10:08:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 10:08:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-23 10:08:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:15,660 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-23 10:08:15,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:08:15,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243054824] [2023-11-23 10:08:15,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243054824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:08:15,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:08:15,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 10:08:15,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131299258] [2023-11-23 10:08:15,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:08:15,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 10:08:15,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:08:15,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 10:08:15,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 10:08:15,662 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) [2023-11-23 10:08:17,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:08:19,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:08:21,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:08:21,671 INFO L93 Difference]: Finished difference Result 3958 states and 5995 transitions. [2023-11-23 10:08:21,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 10:08:21,676 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 [2023-11-23 10:08:21,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:08:21,685 INFO L225 Difference]: With dead ends: 3958 [2023-11-23 10:08:21,685 INFO L226 Difference]: Without dead ends: 2441 [2023-11-23 10:08:21,689 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 [2023-11-23 10:08:21,689 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 1208 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 2857 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 3545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 2857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-23 10:08:21,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 2665 Invalid, 3545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 2857 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-23 10:08:21,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2023-11-23 10:08:21,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2050. [2023-11-23 10:08:21,786 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) [2023-11-23 10:08:21,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 3050 transitions. [2023-11-23 10:08:21,791 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 3050 transitions. Word has length 169 [2023-11-23 10:08:21,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:08:21,792 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 3050 transitions. [2023-11-23 10:08:21,792 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) [2023-11-23 10:08:21,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 3050 transitions. [2023-11-23 10:08:21,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-23 10:08:21,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:08:21,799 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] [2023-11-23 10:08:21,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 10:08:21,799 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:08:21,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:08:21,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1823064826, now seen corresponding path program 1 times [2023-11-23 10:08:21,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:08:21,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364779520] [2023-11-23 10:08:21,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:08:21,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:08:21,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:08:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:08:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:08:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:08:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:08:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:08:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:08:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:08:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:08:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:08:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 10:08:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 10:08:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-23 10:08:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-23 10:08:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-23 10:08:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-23 10:08:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-23 10:08:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 10:08:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-23 10:08:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-23 10:08:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-23 10:08:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:22,397 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-23 10:08:22,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:08:22,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364779520] [2023-11-23 10:08:22,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364779520] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:08:22,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213242336] [2023-11-23 10:08:22,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:08:22,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:08:22,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:08:22,404 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) [2023-11-23 10:08:22,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 10:08:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:23,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 1422 conjuncts, 190 conjunts are in the unsatisfiable core [2023-11-23 10:08:23,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:08:23,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-23 10:08:23,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-11-23 10:08:23,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2023-11-23 10:08:23,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-11-23 10:08:23,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2023-11-23 10:08:23,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 38 [2023-11-23 10:08:23,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2023-11-23 10:08:24,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 21 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 41 [2023-11-23 10:08:24,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:08:24,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 18 [2023-11-23 10:08:24,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:08:24,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2023-11-23 10:08:24,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2023-11-23 10:08:24,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2023-11-23 10:08:24,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 45 [2023-11-23 10:08:24,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-11-23 10:08:24,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-11-23 10:08:24,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2023-11-23 10:08:24,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 11 [2023-11-23 10:08:24,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-11-23 10:08:24,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-11-23 10:08:24,882 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2023-11-23 10:08:25,287 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 10:08:25,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:08:25,290 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 10:08:25,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:08:25,291 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 10:08:25,292 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 38 [2023-11-23 10:08:25,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 51 [2023-11-23 10:08:25,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2023-11-23 10:08:25,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-11-23 10:08:25,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-23 10:08:25,343 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 68 proven. 4 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-23 10:08:25,343 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 10:08:27,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213242336] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:08:27,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 10:08:27,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 29] total 32 [2023-11-23 10:08:27,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838216010] [2023-11-23 10:08:27,563 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 10:08:27,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-23 10:08:27,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:08:27,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-23 10:08:27,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1001, Unknown=1, NotChecked=0, Total=1122 [2023-11-23 10:08:27,564 INFO L87 Difference]: Start difference. First operand 2050 states and 3050 transitions. Second operand has 32 states, 29 states have (on average 6.172413793103448) internal successors, (179), 23 states have internal predecessors, (179), 10 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (34), 12 states have call predecessors, (34), 10 states have call successors, (34) [2023-11-23 10:08:32,012 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 [] [2023-11-23 10:08:33,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:08:38,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:08:40,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:08:46,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:08:55,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:08:55,736 INFO L93 Difference]: Finished difference Result 3966 states and 6001 transitions. [2023-11-23 10:08:55,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 10:08:55,736 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 6.172413793103448) internal successors, (179), 23 states have internal predecessors, (179), 10 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (34), 12 states have call predecessors, (34), 10 states have call successors, (34) Word has length 176 [2023-11-23 10:08:55,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:08:55,743 INFO L225 Difference]: With dead ends: 3966 [2023-11-23 10:08:55,743 INFO L226 Difference]: Without dead ends: 2441 [2023-11-23 10:08:55,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 546 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=262, Invalid=2089, Unknown=1, NotChecked=0, Total=2352 [2023-11-23 10:08:55,747 INFO L413 NwaCegarLoop]: 742 mSDtfsCounter, 3693 mSDsluCounter, 8438 mSDsCounter, 0 mSdLazyCounter, 16651 mSolverCounterSat, 2071 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3806 SdHoareTripleChecker+Valid, 9180 SdHoareTripleChecker+Invalid, 18725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2071 IncrementalHoareTripleChecker+Valid, 16651 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2023-11-23 10:08:55,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3806 Valid, 9180 Invalid, 18725 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2071 Valid, 16651 Invalid, 3 Unknown, 0 Unchecked, 27.2s Time] [2023-11-23 10:08:55,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2023-11-23 10:08:55,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2062. [2023-11-23 10:08:55,850 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) [2023-11-23 10:08:55,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 3074 transitions. [2023-11-23 10:08:55,855 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 3074 transitions. Word has length 176 [2023-11-23 10:08:55,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:08:55,856 INFO L495 AbstractCegarLoop]: Abstraction has 2062 states and 3074 transitions. [2023-11-23 10:08:55,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 6.172413793103448) internal successors, (179), 23 states have internal predecessors, (179), 10 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (34), 12 states have call predecessors, (34), 10 states have call successors, (34) [2023-11-23 10:08:55,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 3074 transitions. [2023-11-23 10:08:55,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-23 10:08:55,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:08:55,863 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] [2023-11-23 10:08:55,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 10:08:56,078 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 [2023-11-23 10:08:56,079 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:08:56,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:08:56,079 INFO L85 PathProgramCache]: Analyzing trace with hash 492922848, now seen corresponding path program 1 times [2023-11-23 10:08:56,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:08:56,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657040738] [2023-11-23 10:08:56,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:08:56,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:08:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:08:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:08:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:08:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:08:56,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:08:56,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:08:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:08:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:08:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:08:56,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:08:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:08:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:08:56,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 10:08:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 10:08:56,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-23 10:08:56,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-23 10:08:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-23 10:08:56,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-23 10:08:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-23 10:08:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 10:08:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-23 10:08:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-23 10:08:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-23 10:08:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:08:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-11-23 10:08:56,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:08:56,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657040738] [2023-11-23 10:08:56,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657040738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 10:08:56,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 10:08:56,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-23 10:08:56,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290983420] [2023-11-23 10:08:56,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 10:08:56,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 10:08:56,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:08:56,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 10:08:56,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 10:08:56,504 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) [2023-11-23 10:08:59,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:01,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:09:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 10:09:04,873 INFO L93 Difference]: Finished difference Result 3974 states and 6019 transitions. [2023-11-23 10:09:04,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 10:09:04,873 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 [2023-11-23 10:09:04,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 10:09:04,881 INFO L225 Difference]: With dead ends: 3974 [2023-11-23 10:09:04,881 INFO L226 Difference]: Without dead ends: 2447 [2023-11-23 10:09:04,885 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 [2023-11-23 10:09:04,885 INFO L413 NwaCegarLoop]: 744 mSDtfsCounter, 1629 mSDsluCounter, 2776 mSDsCounter, 0 mSdLazyCounter, 4482 mSolverCounterSat, 952 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 5435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 952 IncrementalHoareTripleChecker+Valid, 4482 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-11-23 10:09:04,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 3520 Invalid, 5435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [952 Valid, 4482 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2023-11-23 10:09:04,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2023-11-23 10:09:04,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2064. [2023-11-23 10:09:04,989 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) [2023-11-23 10:09:04,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2064 states to 2064 states and 3076 transitions. [2023-11-23 10:09:04,995 INFO L78 Accepts]: Start accepts. Automaton has 2064 states and 3076 transitions. Word has length 182 [2023-11-23 10:09:04,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 10:09:04,995 INFO L495 AbstractCegarLoop]: Abstraction has 2064 states and 3076 transitions. [2023-11-23 10:09:04,995 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) [2023-11-23 10:09:04,995 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states and 3076 transitions. [2023-11-23 10:09:05,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-23 10:09:05,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 10:09:05,002 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] [2023-11-23 10:09:05,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 10:09:05,002 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 10:09:05,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 10:09:05,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1273152186, now seen corresponding path program 1 times [2023-11-23 10:09:05,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 10:09:05,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388188794] [2023-11-23 10:09:05,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:09:05,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 10:09:05,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:09:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-23 10:09:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 10:09:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-23 10:09:10,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 10:09:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-23 10:09:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-23 10:09:10,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-23 10:09:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-23 10:09:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 10:09:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 10:09:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 10:09:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:09:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-23 10:09:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-23 10:09:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-23 10:09:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-23 10:09:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 10:09:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-23 10:09:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-23 10:09:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-23 10:09:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-23 10:09:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-23 10:09:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-23 10:09:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-23 10:09:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:10,729 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2023-11-23 10:09:10,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 10:09:10,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388188794] [2023-11-23 10:09:10,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388188794] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:09:10,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752843882] [2023-11-23 10:09:10,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 10:09:10,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 10:09:10,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 10:09:10,745 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) [2023-11-23 10:09:10,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 10:09:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 10:09:11,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 172 conjunts are in the unsatisfiable core [2023-11-23 10:09:11,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 10:09:11,389 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 [2023-11-23 10:09:11,808 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 [2023-11-23 10:09:11,998 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 [2023-11-23 10:09:12,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:09:12,223 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 12 [2023-11-23 10:09:12,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:09:12,241 INFO L349 Elim1Store]: treesize reduction 29, result has 3.3 percent of original size [2023-11-23 10:09:12,242 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 1 [2023-11-23 10:09:12,356 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 [2023-11-23 10:09:12,463 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-23 10:09:12,463 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 [2023-11-23 10:09:12,566 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 [2023-11-23 10:09:12,890 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 [2023-11-23 10:09:12,917 INFO L349 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-11-23 10:09:12,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 49 [2023-11-23 10:09:12,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2023-11-23 10:09:12,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2023-11-23 10:09:13,019 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 [2023-11-23 10:09:13,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-23 10:09:13,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-23 10:09:13,459 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 18 [2023-11-23 10:09:13,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2023-11-23 10:09:13,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2023-11-23 10:09:13,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 8 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2023-11-23 10:09:13,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 37 [2023-11-23 10:09:13,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-23 10:09:13,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-23 10:09:13,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2023-11-23 10:09:14,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 46 [2023-11-23 10:09:14,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 26 [2023-11-23 10:09:14,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 30 [2023-11-23 10:09:14,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2023-11-23 10:09:14,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 46 [2023-11-23 10:09:14,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-23 10:09:14,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-11-23 10:09:14,670 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2023-11-23 10:09:14,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-11-23 10:09:15,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 17 treesize of output 11 [2023-11-23 10:09:15,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2023-11-23 10:09:15,214 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2023-11-23 10:09:15,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 41 [2023-11-23 10:09:16,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:09:16,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 78 [2023-11-23 10:09:16,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:09:16,299 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 10:09:16,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 37 [2023-11-23 10:09:16,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 10:09:16,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2023-11-23 10:09:16,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2023-11-23 10:09:16,349 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 66 proven. 12 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-23 10:09:16,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 10:09:16,399 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1056 (Array Int Int)) (v_ArrVal_1055 (Array Int Int)) (v_ArrVal_1054 (Array Int Int))) (let ((.cse0 (mod (let ((.cse1 (+ |c_ULTIMATE.start_slip_open_~sl~12#1.offset| 12))) (select (select (store |c_#memory_int#10| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1056) (select (select (store |c_#memory_$Pointer$#10.base| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1054) |c_ULTIMATE.start_slip_open_~sl~12#1.base|) .cse1)) (+ 112 (select (select (store |c_#memory_$Pointer$#10.offset| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1055) |c_ULTIMATE.start_slip_open_~sl~12#1.base|) .cse1)))) 4294967296))) (or (< .cse0 1) (< 2147483647 .cse0)))) is different from false [2023-11-23 10:09:16,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752843882] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 10:09:16,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 10:09:16,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 36] total 63 [2023-11-23 10:09:16,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062651604] [2023-11-23 10:09:16,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 10:09:16,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-11-23 10:09:16,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 10:09:16,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-11-23 10:09:16,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=3700, Unknown=1, NotChecked=122, Total=4032 [2023-11-23 10:09:16,412 INFO L87 Difference]: Start difference. First operand 2064 states and 3076 transitions. Second operand has 63 states, 58 states have (on average 3.5) internal successors, (203), 49 states have internal predecessors, (203), 22 states have call successors, (48), 14 states have call predecessors, (48), 18 states have return successors, (40), 26 states have call predecessors, (40), 21 states have call successors, (40) [2023-11-23 10:09:24,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:26,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:28,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:29,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:34,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:36,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:40,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:42,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:45,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:47,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:48,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:50,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:09:55,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:10:28,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:30,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:32,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:34,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:36,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:38,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:40,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:42,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:44,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:47,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:51,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:53,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 10:10:55,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:10:57,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:01,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:03,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 10:11:08,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15