./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 6ae2ee47 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6063bfeeaa4a025ac67d1a7a9b5cc20b489e34fc9db0d4dd9fcdda86c75b9c5e --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-6ae2ee4-m [2023-11-22 21:43:40,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-22 21:43:40,230 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-22 21:43:40,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-22 21:43:40,236 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-22 21:43:40,261 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-22 21:43:40,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-22 21:43:40,262 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-22 21:43:40,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-22 21:43:40,265 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-22 21:43:40,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-22 21:43:40,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-22 21:43:40,267 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-22 21:43:40,268 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-22 21:43:40,268 INFO L153 SettingsManager]: * Use SBE=true [2023-11-22 21:43:40,268 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-22 21:43:40,268 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-22 21:43:40,269 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-22 21:43:40,269 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-22 21:43:40,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-22 21:43:40,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-22 21:43:40,270 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-22 21:43:40,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-22 21:43:40,270 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-22 21:43:40,270 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-22 21:43:40,271 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-22 21:43:40,271 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-22 21:43:40,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-22 21:43:40,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:43:40,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-22 21:43:40,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-22 21:43:40,273 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-22 21:43:40,273 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-22 21:43:40,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-22 21:43:40,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-22 21:43:40,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-22 21:43:40,273 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-22 21:43:40,274 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-22 21:43:40,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-22 21:43:40,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6063bfeeaa4a025ac67d1a7a9b5cc20b489e34fc9db0d4dd9fcdda86c75b9c5e Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-22 21:43:40,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-22 21:43:40,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-22 21:43:40,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-22 21:43:40,517 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-22 21:43:40,518 INFO L274 PluginConnector]: CDTParser initialized [2023-11-22 21:43:40,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2023-11-22 21:43:41,559 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-22 21:43:41,972 INFO L384 CDTParser]: Found 1 translation units. [2023-11-22 21:43:41,972 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2023-11-22 21:43:42,000 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79841b53/d8e13630e9844f8da06125179bd43388/FLAGfe59b28c7 [2023-11-22 21:43:42,014 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c79841b53/d8e13630e9844f8da06125179bd43388 [2023-11-22 21:43:42,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-22 21:43:42,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-22 21:43:42,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-22 21:43:42,021 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-22 21:43:42,025 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-22 21:43:42,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:43:42" (1/1) ... [2023-11-22 21:43:42,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3653b61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:42, skipping insertion in model container [2023-11-22 21:43:42,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:43:42" (1/1) ... [2023-11-22 21:43:42,136 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-22 21:43:42,521 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i[139152,139165] [2023-11-22 21:43:42,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:43:42,960 INFO L202 MainTranslator]: Completed pre-run [2023-11-22 21:43:43,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4690] [2023-11-22 21:43:43,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4697] [2023-11-22 21:43:43,026 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4705-4706] [2023-11-22 21:43:43,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4714-4715] [2023-11-22 21:43:43,029 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i[139152,139165] [2023-11-22 21:43:43,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4838] [2023-11-22 21:43:43,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4841] [2023-11-22 21:43:43,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4844] [2023-11-22 21:43:43,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4847] [2023-11-22 21:43:43,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5229] [2023-11-22 21:43:43,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5233] [2023-11-22 21:43:43,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5237] [2023-11-22 21:43:43,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5241] [2023-11-22 21:43:43,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___0), "+m" (*__ptr___3): "0" (__x___0): "memory"); [5252] [2023-11-22 21:43:43,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___0), "+m" (*__ptr___4): "0" (__x___0): "memory"); [5256] [2023-11-22 21:43:43,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___0), "+m" (*__ptr___5): "0" (__x___0): "memory"); [5260] [2023-11-22 21:43:43,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___0), "+m" (*__ptr___6): "0" (__x___0): "memory"); [5264] [2023-11-22 21:43:43,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___1), "+m" (*__ptr___7): "0" (__x___1): "memory"); [5275] [2023-11-22 21:43:43,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___1), "+m" (*__ptr___8): "0" (__x___1): "memory"); [5279] [2023-11-22 21:43:43,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___1), "+m" (*__ptr___9): "0" (__x___1): "memory"); [5283] [2023-11-22 21:43:43,047 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___1), "+m" (*__ptr___10): "0" (__x___1): "memory"); [5287] [2023-11-22 21:43:43,047 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___2), "+m" (*__ptr___11): "0" (__x___2): "memory"); [5298] [2023-11-22 21:43:43,047 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___2), "+m" (*__ptr___12): "0" (__x___2): "memory"); [5302] [2023-11-22 21:43:43,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___2), "+m" (*__ptr___13): "0" (__x___2): "memory"); [5306] [2023-11-22 21:43:43,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___2), "+m" (*__ptr___14): "0" (__x___2): "memory"); [5310] [2023-11-22 21:43:43,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5360] [2023-11-22 21:43:43,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5364] [2023-11-22 21:43:43,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5368] [2023-11-22 21:43:43,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5372] [2023-11-22 21:43:43,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___0), "+m" (*__ptr___3): "0" (__x___0): "memory"); [5383] [2023-11-22 21:43:43,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___0), "+m" (*__ptr___4): "0" (__x___0): "memory"); [5387] [2023-11-22 21:43:43,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___0), "+m" (*__ptr___5): "0" (__x___0): "memory"); [5391] [2023-11-22 21:43:43,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___0), "+m" (*__ptr___6): "0" (__x___0): "memory"); [5395] [2023-11-22 21:43:43,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___1), "+m" (*__ptr___7): "0" (__x___1): "memory"); [5406] [2023-11-22 21:43:43,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___1), "+m" (*__ptr___8): "0" (__x___1): "memory"); [5410] [2023-11-22 21:43:43,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___1), "+m" (*__ptr___9): "0" (__x___1): "memory"); [5414] [2023-11-22 21:43:43,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___1), "+m" (*__ptr___10): "0" (__x___1): "memory"); [5418] [2023-11-22 21:43:43,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___2), "+m" (*__ptr___11): "0" (__x___2): "memory"); [5429] [2023-11-22 21:43:43,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___2), "+m" (*__ptr___12): "0" (__x___2): "memory"); [5433] [2023-11-22 21:43:43,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___2), "+m" (*__ptr___13): "0" (__x___2): "memory"); [5437] [2023-11-22 21:43:43,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___2), "+m" (*__ptr___14): "0" (__x___2): "memory"); [5441] [2023-11-22 21:43:43,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x), "+m" (*__ptr): "0" (__x): "memory"); [5515] [2023-11-22 21:43:43,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x), "+m" (*__ptr___0): "0" (__x): "memory"); [5519] [2023-11-22 21:43:43,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x), "+m" (*__ptr___1): "0" (__x): "memory"); [5523] [2023-11-22 21:43:43,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x), "+m" (*__ptr___2): "0" (__x): "memory"); [5527] [2023-11-22 21:43:43,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___0), "+m" (*__ptr___3): "0" (__x___0): "memory"); [5538] [2023-11-22 21:43:43,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___0), "+m" (*__ptr___4): "0" (__x___0): "memory"); [5542] [2023-11-22 21:43:43,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___0), "+m" (*__ptr___5): "0" (__x___0): "memory"); [5546] [2023-11-22 21:43:43,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___0), "+m" (*__ptr___6): "0" (__x___0): "memory"); [5550] [2023-11-22 21:43:43,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %0,%1": "=q" (__x___1), "+m" (*__ptr___7): "0" (__x___1): "memory"); [5561] [2023-11-22 21:43:43,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %0,%1": "=r" (__x___1), "+m" (*__ptr___8): "0" (__x___1): "memory"); [5565] [2023-11-22 21:43:43,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0,%1": "=r" (__x___1), "+m" (*__ptr___9): "0" (__x___1): "memory"); [5569] [2023-11-22 21:43:43,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %0,%1": "=r" (__x___1), "+m" (*__ptr___10): "0" (__x___1): "memory"); [5573] [2023-11-22 21:43:43,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6512] [2023-11-22 21:43:43,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6515] [2023-11-22 21:43:43,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6518] [2023-11-22 21:43:43,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6521] [2023-11-22 21:43:43,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6524] [2023-11-22 21:43:43,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6537] [2023-11-22 21:43:43,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6540] [2023-11-22 21:43:43,201 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6543] [2023-11-22 21:43:43,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6546] [2023-11-22 21:43:43,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu), "=d" (__val_gu): "0" (p)); [6549] [2023-11-22 21:43:43,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [6571] [2023-11-22 21:43:43,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [6574] [2023-11-22 21:43:43,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [6577] [2023-11-22 21:43:43,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [6580] [2023-11-22 21:43:43,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu___0), "=d" (__val_gu___0): "0" (p)); [6583] [2023-11-22 21:43:43,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6616-6617] [2023-11-22 21:43:43,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6620-6621] [2023-11-22 21:43:43,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6624-6625] [2023-11-22 21:43:43,207 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6628-6629] [2023-11-22 21:43:43,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6632-6633] [2023-11-22 21:43:43,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_1": "=a" (__ret_gu___1), "=d" (__val_gu___1): "0" (p)); [6646] [2023-11-22 21:43:43,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_2": "=a" (__ret_gu___1), "=d" (__val_gu___1): "0" (p)); [6649] [2023-11-22 21:43:43,256 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_4": "=a" (__ret_gu___1), "=d" (__val_gu___1): "0" (p)); [6652] [2023-11-22 21:43:43,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_8": "=a" (__ret_gu___1), "=d" (__val_gu___1): "0" (p)); [6655] [2023-11-22 21:43:43,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_X": "=a" (__ret_gu___1), "=d" (__val_gu___1): "0" (p)); [6658] [2023-11-22 21:43:43,258 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6691-6692] [2023-11-22 21:43:43,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6695-6696] [2023-11-22 21:43:43,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6699-6700] [2023-11-22 21:43:43,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6703-6704] [2023-11-22 21:43:43,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6707-6708] [2023-11-22 21:43:43,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-22 21:43:43,407 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 21:43:43,407 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 21:43:43,407 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-22 21:43:43,413 INFO L206 MainTranslator]: Completed translation [2023-11-22 21:43:43,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43 WrapperNode [2023-11-22 21:43:43,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-22 21:43:43,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-22 21:43:43,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-22 21:43:43,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-22 21:43:43,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:43,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:43,629 INFO L138 Inliner]: procedures = 184, calls = 845, calls flagged for inlining = 92, calls inlined = 90, statements flattened = 3344 [2023-11-22 21:43:43,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-22 21:43:43,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-22 21:43:43,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-22 21:43:43,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-22 21:43:43,639 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:43,639 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:43,649 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:43,904 INFO L189 HeapSplitter]: Split 418 memory accesses to 11 slices as follows [2, 0, 2, 0, 1, 3, 346, 4, 35, 20, 5] [2023-11-22 21:43:43,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:43,905 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:43,975 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:43,986 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:44,009 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:44,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:44,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-22 21:43:44,052 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-22 21:43:44,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-22 21:43:44,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-22 21:43:44,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (1/1) ... [2023-11-22 21:43:44,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-22 21:43:44,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:43:44,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-22 21:43:44,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-22 21:43:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2023-11-22 21:43:44,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2023-11-22 21:43:44,132 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2023-11-22 21:43:44,132 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2023-11-22 21:43:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-22 21:43:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-22 21:43:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-22 21:43:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-22 21:43:44,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-22 21:43:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-22 21:43:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-22 21:43:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-22 21:43:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-22 21:43:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-22 21:43:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-22 21:43:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-22 21:43:44,134 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-22 21:43:44,135 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-22 21:43:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-22 21:43:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-22 21:43:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-22 21:43:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-22 21:43:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-22 21:43:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-22 21:43:44,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-22 21:43:44,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-22 21:43:44,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-22 21:43:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-22 21:43:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-22 21:43:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-22 21:43:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-22 21:43:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-22 21:43:44,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-22 21:43:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-22 21:43:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-22 21:43:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-22 21:43:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-22 21:43:44,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-22 21:43:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-22 21:43:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-22 21:43:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-22 21:43:44,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-22 21:43:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-22 21:43:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-22 21:43:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-22 21:43:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-22 21:43:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-22 21:43:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-22 21:43:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-22 21:43:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-22 21:43:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-22 21:43:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-22 21:43:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-22 21:43:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-22 21:43:44,141 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-22 21:43:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-22 21:43:44,141 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-22 21:43:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2023-11-22 21:43:44,142 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2023-11-22 21:43:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-22 21:43:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-22 21:43:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-22 21:43:44,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-22 21:43:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-22 21:43:44,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-22 21:43:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-22 21:43:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-22 21:43:44,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-22 21:43:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-22 21:43:44,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-22 21:43:44,146 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-22 21:43:44,146 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-22 21:43:44,146 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-22 21:43:44,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-22 21:43:44,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-22 21:43:44,151 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-22 21:43:44,151 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-22 21:43:44,151 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-22 21:43:44,151 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-22 21:43:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-22 21:43:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-22 21:43:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-22 21:43:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-22 21:43:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-22 21:43:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-22 21:43:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-22 21:43:44,152 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-22 21:43:44,152 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2023-11-22 21:43:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2023-11-22 21:43:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-22 21:43:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-22 21:43:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2023-11-22 21:43:44,153 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2023-11-22 21:43:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-22 21:43:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-22 21:43:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-22 21:43:44,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-22 21:43:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-22 21:43:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-22 21:43:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-22 21:43:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-22 21:43:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-22 21:43:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-22 21:43:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-22 21:43:44,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-22 21:43:44,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-22 21:43:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-22 21:43:44,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-22 21:43:44,155 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-22 21:43:44,156 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-22 21:43:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-22 21:43:44,156 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-22 21:43:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-22 21:43:44,156 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-22 21:43:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-22 21:43:44,156 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-22 21:43:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-22 21:43:44,156 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-22 21:43:44,157 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-22 21:43:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2023-11-22 21:43:44,157 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2023-11-22 21:43:44,157 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2023-11-22 21:43:44,157 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2023-11-22 21:43:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-22 21:43:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-22 21:43:44,158 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-22 21:43:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2023-11-22 21:43:44,158 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2023-11-22 21:43:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-22 21:43:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-22 21:43:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-22 21:43:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-22 21:43:44,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-22 21:43:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-22 21:43:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-22 21:43:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-22 21:43:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-22 21:43:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-22 21:43:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-22 21:43:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-22 21:43:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-22 21:43:44,159 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-22 21:43:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-11-22 21:43:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-11-22 21:43:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2023-11-22 21:43:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2023-11-22 21:43:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2023-11-22 21:43:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2023-11-22 21:43:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2023-11-22 21:43:44,160 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2023-11-22 21:43:44,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-22 21:43:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-22 21:43:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-22 21:43:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-22 21:43:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-22 21:43:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-22 21:43:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-22 21:43:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-22 21:43:44,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-22 21:43:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-22 21:43:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-22 21:43:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-22 21:43:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-22 21:43:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-22 21:43:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-22 21:43:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-22 21:43:44,162 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-22 21:43:44,162 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2023-11-22 21:43:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2023-11-22 21:43:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2023-11-22 21:43:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2023-11-22 21:43:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-22 21:43:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-22 21:43:44,163 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-22 21:43:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-22 21:43:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-22 21:43:44,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-22 21:43:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-22 21:43:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-22 21:43:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-22 21:43:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-22 21:43:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-22 21:43:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-22 21:43:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-22 21:43:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-22 21:43:44,164 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2023-11-22 21:43:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2023-11-22 21:43:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-22 21:43:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-22 21:43:44,165 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-22 21:43:44,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-22 21:43:44,166 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2023-11-22 21:43:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2023-11-22 21:43:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-22 21:43:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-22 21:43:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-22 21:43:44,168 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-22 21:43:44,168 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2023-11-22 21:43:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2023-11-22 21:43:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-11-22 21:43:44,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-11-22 21:43:44,169 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-22 21:43:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-22 21:43:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-22 21:43:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-22 21:43:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-22 21:43:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-22 21:43:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-22 21:43:44,170 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-22 21:43:44,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-22 21:43:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-22 21:43:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-22 21:43:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-22 21:43:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-22 21:43:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-22 21:43:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-22 21:43:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-22 21:43:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-22 21:43:44,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-22 21:43:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-22 21:43:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-22 21:43:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-22 21:43:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-11-22 21:43:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-11-22 21:43:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-22 21:43:44,172 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-22 21:43:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-22 21:43:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-22 21:43:44,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-22 21:43:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-22 21:43:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-22 21:43:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-22 21:43:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-22 21:43:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-22 21:43:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-22 21:43:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-22 21:43:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-22 21:43:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-22 21:43:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-22 21:43:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-22 21:43:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-22 21:43:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2023-11-22 21:43:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2023-11-22 21:43:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-11-22 21:43:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-11-22 21:43:44,632 INFO L241 CfgBuilder]: Building ICFG [2023-11-22 21:43:44,635 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-22 21:43:44,776 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-22 21:43:47,254 INFO L282 CfgBuilder]: Performing block encoding [2023-11-22 21:43:47,367 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-22 21:43:47,367 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-22 21:43:47,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:43:47 BoogieIcfgContainer [2023-11-22 21:43:47,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-22 21:43:47,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-22 21:43:47,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-22 21:43:47,372 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-22 21:43:47,372 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:43:42" (1/3) ... [2023-11-22 21:43:47,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10bf8ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:43:47, skipping insertion in model container [2023-11-22 21:43:47,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:43:43" (2/3) ... [2023-11-22 21:43:47,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10bf8ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:43:47, skipping insertion in model container [2023-11-22 21:43:47,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:43:47" (3/3) ... [2023-11-22 21:43:47,374 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2023-11-22 21:43:47,388 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-22 21:43:47,388 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-22 21:43:47,439 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-22 21:43:47,443 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;@62a6f3e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-22 21:43:47,444 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-22 21:43:47,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 1026 states, 727 states have (on average 1.5075653370013755) internal successors, (1096), 760 states have internal predecessors, (1096), 245 states have call successors, (245), 53 states have call predecessors, (245), 52 states have return successors, (240), 238 states have call predecessors, (240), 240 states have call successors, (240) [2023-11-22 21:43:47,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-22 21:43:47,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:43:47,468 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:43:47,468 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:43:47,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:43:47,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2035189210, now seen corresponding path program 1 times [2023-11-22 21:43:47,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:43:47,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237307492] [2023-11-22 21:43:47,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:43:47,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:43:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:47,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:43:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:47,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:43:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:47,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:43:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:47,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:43:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:47,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:43:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:47,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:43:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:47,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:43:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-22 21:43:47,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:43:47,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237307492] [2023-11-22 21:43:47,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237307492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:43:47,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:43:47,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-22 21:43:47,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848538571] [2023-11-22 21:43:47,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:43:47,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:43:47,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:43:47,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:43:47,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-22 21:43:47,939 INFO L87 Difference]: Start difference. First operand has 1026 states, 727 states have (on average 1.5075653370013755) internal successors, (1096), 760 states have internal predecessors, (1096), 245 states have call successors, (245), 53 states have call predecessors, (245), 52 states have return successors, (240), 238 states have call predecessors, (240), 240 states have call successors, (240) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-22 21:43:50,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:43:53,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:43:53,609 INFO L93 Difference]: Finished difference Result 2767 states and 4311 transitions. [2023-11-22 21:43:53,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 21:43:53,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 60 [2023-11-22 21:43:53,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:43:53,637 INFO L225 Difference]: With dead ends: 2767 [2023-11-22 21:43:53,637 INFO L226 Difference]: Without dead ends: 1667 [2023-11-22 21:43:53,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-22 21:43:53,647 INFO L413 NwaCegarLoop]: 1133 mSDtfsCounter, 1384 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 2596 SdHoareTripleChecker+Invalid, 2189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-22 21:43:53,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 2596 Invalid, 2189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-22 21:43:53,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2023-11-22 21:43:53,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1515. [2023-11-22 21:43:53,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1066 states have (on average 1.474671669793621) internal successors, (1572), 1099 states have internal predecessors, (1572), 358 states have call successors, (358), 91 states have call predecessors, (358), 90 states have return successors, (357), 354 states have call predecessors, (357), 357 states have call successors, (357) [2023-11-22 21:43:53,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2287 transitions. [2023-11-22 21:43:53,805 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2287 transitions. Word has length 60 [2023-11-22 21:43:53,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:43:53,805 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 2287 transitions. [2023-11-22 21:43:53,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-22 21:43:53,806 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2287 transitions. [2023-11-22 21:43:53,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-22 21:43:53,814 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:43:53,814 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:43:53,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-22 21:43:53,815 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:43:53,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:43:53,815 INFO L85 PathProgramCache]: Analyzing trace with hash 581811127, now seen corresponding path program 1 times [2023-11-22 21:43:53,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:43:53,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630423499] [2023-11-22 21:43:53,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:43:53,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:43:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:43:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:43:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:43:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:43:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:43:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:43:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:43:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:43:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:43:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:43:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 21:43:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:43:54,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:43:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:43:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:54,121 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-22 21:43:54,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:43:54,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630423499] [2023-11-22 21:43:54,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630423499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:43:54,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:43:54,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 21:43:54,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896752913] [2023-11-22 21:43:54,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:43:54,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 21:43:54,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:43:54,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 21:43:54,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-22 21:43:54,124 INFO L87 Difference]: Start difference. First operand 1515 states and 2287 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-22 21:43:56,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:43:58,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:43:58,064 INFO L93 Difference]: Finished difference Result 3193 states and 4875 transitions. [2023-11-22 21:43:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 21:43:58,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 110 [2023-11-22 21:43:58,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:43:58,072 INFO L225 Difference]: With dead ends: 3193 [2023-11-22 21:43:58,072 INFO L226 Difference]: Without dead ends: 1699 [2023-11-22 21:43:58,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:43:58,093 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 2197 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 821 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2332 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 1817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 821 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-22 21:43:58,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2332 Valid, 1531 Invalid, 1817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [821 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-22 21:43:58,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2023-11-22 21:43:58,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1515. [2023-11-22 21:43:58,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1066 states have (on average 1.472795497185741) internal successors, (1570), 1099 states have internal predecessors, (1570), 358 states have call successors, (358), 91 states have call predecessors, (358), 90 states have return successors, (357), 354 states have call predecessors, (357), 357 states have call successors, (357) [2023-11-22 21:43:58,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 2285 transitions. [2023-11-22 21:43:58,150 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 2285 transitions. Word has length 110 [2023-11-22 21:43:58,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:43:58,150 INFO L495 AbstractCegarLoop]: Abstraction has 1515 states and 2285 transitions. [2023-11-22 21:43:58,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-22 21:43:58,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 2285 transitions. [2023-11-22 21:43:58,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-22 21:43:58,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:43:58,154 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:43:58,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-22 21:43:58,154 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:43:58,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:43:58,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1142510905, now seen corresponding path program 1 times [2023-11-22 21:43:58,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:43:58,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684020185] [2023-11-22 21:43:58,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:43:58,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:43:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:43:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:43:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:43:58,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:43:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:43:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:43:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:43:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:43:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:43:58,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:43:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 21:43:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:43:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:43:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:43:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:43:58,483 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 21:43:58,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:43:58,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684020185] [2023-11-22 21:43:58,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684020185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:43:58,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:43:58,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 21:43:58,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773235543] [2023-11-22 21:43:58,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:43:58,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:43:58,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:43:58,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:43:58,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:43:58,486 INFO L87 Difference]: Start difference. First operand 1515 states and 2285 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-22 21:44:01,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:44:02,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:44:05,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:44:05,631 INFO L93 Difference]: Finished difference Result 2174 states and 3437 transitions. [2023-11-22 21:44:05,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:44:05,632 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 110 [2023-11-22 21:44:05,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:44:05,642 INFO L225 Difference]: With dead ends: 2174 [2023-11-22 21:44:05,642 INFO L226 Difference]: Without dead ends: 2171 [2023-11-22 21:44:05,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:44:05,645 INFO L413 NwaCegarLoop]: 1304 mSDtfsCounter, 880 mSDsluCounter, 3506 mSDsCounter, 0 mSdLazyCounter, 3032 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 4810 SdHoareTripleChecker+Invalid, 3284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 3032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-11-22 21:44:05,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 4810 Invalid, 3284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 3032 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-11-22 21:44:05,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2171 states. [2023-11-22 21:44:05,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2171 to 1517. [2023-11-22 21:44:05,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1068 states have (on average 1.4719101123595506) internal successors, (1572), 1101 states have internal predecessors, (1572), 358 states have call successors, (358), 91 states have call predecessors, (358), 90 states have return successors, (357), 354 states have call predecessors, (357), 357 states have call successors, (357) [2023-11-22 21:44:05,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 2287 transitions. [2023-11-22 21:44:05,704 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 2287 transitions. Word has length 110 [2023-11-22 21:44:05,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:44:05,706 INFO L495 AbstractCegarLoop]: Abstraction has 1517 states and 2287 transitions. [2023-11-22 21:44:05,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2023-11-22 21:44:05,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 2287 transitions. [2023-11-22 21:44:05,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-22 21:44:05,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:44:05,712 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:44:05,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-22 21:44:05,712 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:44:05,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:44:05,713 INFO L85 PathProgramCache]: Analyzing trace with hash 838864055, now seen corresponding path program 1 times [2023-11-22 21:44:05,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:44:05,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458541175] [2023-11-22 21:44:05,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:05,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:44:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:05,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:05,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:44:05,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:44:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:05,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:44:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:05,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:44:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:06,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:44:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:06,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:44:06,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:06,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:44:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:44:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:06,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:44:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:06,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 21:44:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:06,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:06,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:44:06,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:06,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:44:06,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-22 21:44:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 21:44:06,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:44:06,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458541175] [2023-11-22 21:44:06,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458541175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:44:06,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:44:06,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 21:44:06,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195320127] [2023-11-22 21:44:06,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:44:06,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:44:06,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:44:06,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:44:06,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:44:06,084 INFO L87 Difference]: Start difference. First operand 1517 states and 2287 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-22 21:44:09,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:44:09,174 INFO L93 Difference]: Finished difference Result 3206 states and 4890 transitions. [2023-11-22 21:44:09,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:44:09,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 119 [2023-11-22 21:44:09,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:44:09,183 INFO L225 Difference]: With dead ends: 3206 [2023-11-22 21:44:09,183 INFO L226 Difference]: Without dead ends: 1710 [2023-11-22 21:44:09,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:44:09,188 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 2180 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 819 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2313 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-22 21:44:09,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2313 Valid, 2197 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-22 21:44:09,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2023-11-22 21:44:09,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1518. [2023-11-22 21:44:09,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1069 states have (on average 1.471468662301216) internal successors, (1573), 1102 states have internal predecessors, (1573), 358 states have call successors, (358), 91 states have call predecessors, (358), 90 states have return successors, (357), 354 states have call predecessors, (357), 357 states have call successors, (357) [2023-11-22 21:44:09,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2288 transitions. [2023-11-22 21:44:09,301 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2288 transitions. Word has length 119 [2023-11-22 21:44:09,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:44:09,302 INFO L495 AbstractCegarLoop]: Abstraction has 1518 states and 2288 transitions. [2023-11-22 21:44:09,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-22 21:44:09,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2288 transitions. [2023-11-22 21:44:09,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-22 21:44:09,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:44:09,306 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:44:09,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-22 21:44:09,307 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:44:09,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:44:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash 2059024521, now seen corresponding path program 1 times [2023-11-22 21:44:09,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:44:09,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425953938] [2023-11-22 21:44:09,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:44:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:44:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:44:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:44:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:44:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:44:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:44:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:44:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:44:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:44:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 21:44:09,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:44:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:44:09,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 21:44:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:09,560 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 21:44:09,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:44:09,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425953938] [2023-11-22 21:44:09,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425953938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:44:09,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:44:09,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-22 21:44:09,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781658339] [2023-11-22 21:44:09,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:44:09,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:44:09,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:44:09,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:44:09,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:44:09,563 INFO L87 Difference]: Start difference. First operand 1518 states and 2288 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-22 21:44:11,519 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 [] [2023-11-22 21:44:13,558 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 [] [2023-11-22 21:44:16,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:44:16,132 INFO L93 Difference]: Finished difference Result 2190 states and 3459 transitions. [2023-11-22 21:44:16,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 21:44:16,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 120 [2023-11-22 21:44:16,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:44:16,142 INFO L225 Difference]: With dead ends: 2190 [2023-11-22 21:44:16,142 INFO L226 Difference]: Without dead ends: 2187 [2023-11-22 21:44:16,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-22 21:44:16,143 INFO L413 NwaCegarLoop]: 1366 mSDtfsCounter, 1442 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 3434 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 5391 SdHoareTripleChecker+Invalid, 3951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 3434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-22 21:44:16,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 5391 Invalid, 3951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 3434 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-22 21:44:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2023-11-22 21:44:16,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1520. [2023-11-22 21:44:16,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1070 states have (on average 1.4710280373831777) internal successors, (1574), 1102 states have internal predecessors, (1574), 359 states have call successors, (359), 91 states have call predecessors, (359), 90 states have return successors, (358), 355 states have call predecessors, (358), 358 states have call successors, (358) [2023-11-22 21:44:16,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2291 transitions. [2023-11-22 21:44:16,199 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2291 transitions. Word has length 120 [2023-11-22 21:44:16,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:44:16,199 INFO L495 AbstractCegarLoop]: Abstraction has 1520 states and 2291 transitions. [2023-11-22 21:44:16,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (16), 4 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-22 21:44:16,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2291 transitions. [2023-11-22 21:44:16,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-22 21:44:16,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:44:16,204 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:44:16,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-22 21:44:16,204 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:44:16,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:44:16,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1629960520, now seen corresponding path program 1 times [2023-11-22 21:44:16,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:44:16,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856271996] [2023-11-22 21:44:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:16,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:44:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:16,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:44:16,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:44:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:44:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:44:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:44:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:44:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:44:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:44:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:44:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 21:44:16,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:44:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:44:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 21:44:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:44:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:44:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 21:44:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 21:44:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2023-11-22 21:44:16,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:44:16,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856271996] [2023-11-22 21:44:16,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856271996] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:44:16,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:44:16,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 21:44:16,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892728389] [2023-11-22 21:44:16,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:44:16,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 21:44:16,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:44:16,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 21:44:16,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-22 21:44:16,445 INFO L87 Difference]: Start difference. First operand 1520 states and 2291 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 21:44:21,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:44:24,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:44:24,240 INFO L93 Difference]: Finished difference Result 4849 states and 7408 transitions. [2023-11-22 21:44:24,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-22 21:44:24,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 148 [2023-11-22 21:44:24,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:44:24,253 INFO L225 Difference]: With dead ends: 4849 [2023-11-22 21:44:24,254 INFO L226 Difference]: Without dead ends: 3350 [2023-11-22 21:44:24,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:44:24,259 INFO L413 NwaCegarLoop]: 1386 mSDtfsCounter, 2066 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 572 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2294 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 3232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-11-22 21:44:24,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2294 Valid, 3680 Invalid, 3232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 2659 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2023-11-22 21:44:24,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3350 states. [2023-11-22 21:44:24,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3350 to 2979. [2023-11-22 21:44:24,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2979 states, 2102 states have (on average 1.4733587059942912) internal successors, (3097), 2166 states have internal predecessors, (3097), 697 states have call successors, (697), 180 states have call predecessors, (697), 179 states have return successors, (696), 688 states have call predecessors, (696), 696 states have call successors, (696) [2023-11-22 21:44:24,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2979 states to 2979 states and 4490 transitions. [2023-11-22 21:44:24,449 INFO L78 Accepts]: Start accepts. Automaton has 2979 states and 4490 transitions. Word has length 148 [2023-11-22 21:44:24,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:44:24,449 INFO L495 AbstractCegarLoop]: Abstraction has 2979 states and 4490 transitions. [2023-11-22 21:44:24,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 21:44:24,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2979 states and 4490 transitions. [2023-11-22 21:44:24,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 21:44:24,459 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:44:24,459 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:44:24,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-22 21:44:24,459 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:44:24,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:44:24,460 INFO L85 PathProgramCache]: Analyzing trace with hash 751438712, now seen corresponding path program 1 times [2023-11-22 21:44:24,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:44:24,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730782710] [2023-11-22 21:44:24,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:24,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:44:24,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:44:24,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:44:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:44:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:44:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:44:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:44:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:44:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:44:24,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:44:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 21:44:24,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-22 21:44:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-22 21:44:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-22 21:44:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-22 21:44:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 21:44:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:44:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:44:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 21:44:24,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:24,688 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-22 21:44:24,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:44:24,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730782710] [2023-11-22 21:44:24,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730782710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:44:24,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:44:24,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 21:44:24,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514634977] [2023-11-22 21:44:24,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:44:24,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:44:24,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:44:24,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:44:24,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:44:24,690 INFO L87 Difference]: Start difference. First operand 2979 states and 4490 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 21:44:26,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:44:29,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:44:29,548 INFO L93 Difference]: Finished difference Result 5256 states and 7969 transitions. [2023-11-22 21:44:29,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:44:29,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2023-11-22 21:44:29,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:44:29,569 INFO L225 Difference]: With dead ends: 5256 [2023-11-22 21:44:29,569 INFO L226 Difference]: Without dead ends: 2288 [2023-11-22 21:44:29,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-22 21:44:29,578 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 544 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 2736 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 2972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 2736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-22 21:44:29,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 3585 Invalid, 2972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 2736 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-22 21:44:29,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2023-11-22 21:44:29,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 2026. [2023-11-22 21:44:29,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2026 states, 1417 states have (on average 1.460832745236415) internal successors, (2070), 1458 states have internal predecessors, (2070), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 21:44:29,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2026 states to 2026 states and 3029 transitions. [2023-11-22 21:44:29,683 INFO L78 Accepts]: Start accepts. Automaton has 2026 states and 3029 transitions. Word has length 150 [2023-11-22 21:44:29,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:44:29,684 INFO L495 AbstractCegarLoop]: Abstraction has 2026 states and 3029 transitions. [2023-11-22 21:44:29,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 21:44:29,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2026 states and 3029 transitions. [2023-11-22 21:44:29,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-22 21:44:29,692 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:44:29,692 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:44:29,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-22 21:44:29,692 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:44:29,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:44:29,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1368024194, now seen corresponding path program 1 times [2023-11-22 21:44:29,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:44:29,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716432115] [2023-11-22 21:44:29,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:29,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:44:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:44:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:44:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:44:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:44:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:44:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:44:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:44:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:44:29,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:44:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 21:44:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:44:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:44:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 21:44:29,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-22 21:44:29,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-22 21:44:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:44:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 21:44:29,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 21:44:29,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:44:29,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716432115] [2023-11-22 21:44:29,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716432115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:44:29,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:44:29,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 21:44:29,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872733904] [2023-11-22 21:44:29,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:44:29,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:44:29,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:44:29,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:44:29,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:44:29,953 INFO L87 Difference]: Start difference. First operand 2026 states and 3029 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 21:44:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:44:32,916 INFO L93 Difference]: Finished difference Result 3803 states and 5782 transitions. [2023-11-22 21:44:32,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:44:32,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 150 [2023-11-22 21:44:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:44:32,924 INFO L225 Difference]: With dead ends: 3803 [2023-11-22 21:44:32,925 INFO L226 Difference]: Without dead ends: 2308 [2023-11-22 21:44:32,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:44:32,929 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 2176 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 832 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 2181 SdHoareTripleChecker+Invalid, 2782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:44:32,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2310 Valid, 2181 Invalid, 2782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 1950 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-22 21:44:32,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2308 states. [2023-11-22 21:44:33,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2308 to 2029. [2023-11-22 21:44:33,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 1420 states have (on average 1.4605633802816902) internal successors, (2074), 1461 states have internal predecessors, (2074), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 21:44:33,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 3033 transitions. [2023-11-22 21:44:33,043 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 3033 transitions. Word has length 150 [2023-11-22 21:44:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:44:33,044 INFO L495 AbstractCegarLoop]: Abstraction has 2029 states and 3033 transitions. [2023-11-22 21:44:33,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 3 states have call successors, (20), 4 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-22 21:44:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 3033 transitions. [2023-11-22 21:44:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-22 21:44:33,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:44:33,057 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:44:33,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-22 21:44:33,060 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:44:33,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:44:33,061 INFO L85 PathProgramCache]: Analyzing trace with hash 843450457, now seen corresponding path program 1 times [2023-11-22 21:44:33,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:44:33,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067024426] [2023-11-22 21:44:33,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:33,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:44:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:44:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:44:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:44:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:44:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:44:33,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:44:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:44:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:44:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:44:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 21:44:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:44:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:44:33,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 21:44:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:44:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 21:44:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-22 21:44:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 21:44:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:33,235 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-22 21:44:33,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:44:33,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067024426] [2023-11-22 21:44:33,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067024426] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:44:33,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:44:33,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-22 21:44:33,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793699835] [2023-11-22 21:44:33,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:44:33,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 21:44:33,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:44:33,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 21:44:33,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-22 21:44:33,237 INFO L87 Difference]: Start difference. First operand 2029 states and 3033 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-22 21:44:36,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:44:36,558 INFO L93 Difference]: Finished difference Result 4302 states and 6538 transitions. [2023-11-22 21:44:36,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-22 21:44:36,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2023-11-22 21:44:36,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:44:36,570 INFO L225 Difference]: With dead ends: 4302 [2023-11-22 21:44:36,570 INFO L226 Difference]: Without dead ends: 2294 [2023-11-22 21:44:36,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:44:36,577 INFO L413 NwaCegarLoop]: 978 mSDtfsCounter, 988 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-22 21:44:36,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 2404 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-22 21:44:36,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2294 states. [2023-11-22 21:44:36,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2294 to 2029. [2023-11-22 21:44:36,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2029 states, 1420 states have (on average 1.454225352112676) internal successors, (2065), 1461 states have internal predecessors, (2065), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 21:44:36,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2029 states to 2029 states and 3024 transitions. [2023-11-22 21:44:36,682 INFO L78 Accepts]: Start accepts. Automaton has 2029 states and 3024 transitions. Word has length 152 [2023-11-22 21:44:36,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:44:36,682 INFO L495 AbstractCegarLoop]: Abstraction has 2029 states and 3024 transitions. [2023-11-22 21:44:36,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 4 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-11-22 21:44:36,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2029 states and 3024 transitions. [2023-11-22 21:44:36,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-22 21:44:36,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:44:36,689 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:44:36,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-22 21:44:36,689 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:44:36,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:44:36,690 INFO L85 PathProgramCache]: Analyzing trace with hash -778817517, now seen corresponding path program 1 times [2023-11-22 21:44:36,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:44:36,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938137476] [2023-11-22 21:44:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:36,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:44:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:36,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:36,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:44:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:36,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:44:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:44:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:36,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:44:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:36,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:44:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:44:36,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:44:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:44:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:44:37,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 21:44:37,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:44:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:44:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 21:44:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:44:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 21:44:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-22 21:44:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-22 21:44:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,063 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 21:44:37,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:44:37,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938137476] [2023-11-22 21:44:37,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938137476] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:44:37,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413825692] [2023-11-22 21:44:37,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:37,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:44:37,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:44:37,069 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:44:37,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-22 21:44:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:37,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 1349 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-22 21:44:37,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:44:37,790 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 21:44:37,790 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:44:37,944 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 21:44:37,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413825692] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:44:37,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:44:37,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 12 [2023-11-22 21:44:37,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619746552] [2023-11-22 21:44:37,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:44:37,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-22 21:44:37,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:44:37,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-22 21:44:37,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-22 21:44:37,947 INFO L87 Difference]: Start difference. First operand 2029 states and 3024 transitions. Second operand has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2023-11-22 21:44:40,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:44:41,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:44:43,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:44:43,875 INFO L93 Difference]: Finished difference Result 3849 states and 5842 transitions. [2023-11-22 21:44:43,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-22 21:44:43,875 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) Word has length 155 [2023-11-22 21:44:43,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:44:43,882 INFO L225 Difference]: With dead ends: 3849 [2023-11-22 21:44:43,882 INFO L226 Difference]: Without dead ends: 2351 [2023-11-22 21:44:43,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-11-22 21:44:43,885 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 3301 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 1403 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3437 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1403 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-22 21:44:43,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3437 Valid, 2224 Invalid, 3410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1403 Valid, 2006 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2023-11-22 21:44:43,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2023-11-22 21:44:43,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 2034. [2023-11-22 21:44:43,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2034 states, 1425 states have (on average 1.4540350877192982) internal successors, (2072), 1466 states have internal predecessors, (2072), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 21:44:43,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2034 states to 2034 states and 3031 transitions. [2023-11-22 21:44:43,980 INFO L78 Accepts]: Start accepts. Automaton has 2034 states and 3031 transitions. Word has length 155 [2023-11-22 21:44:43,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:44:43,980 INFO L495 AbstractCegarLoop]: Abstraction has 2034 states and 3031 transitions. [2023-11-22 21:44:43,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.75) internal successors, (165), 10 states have internal predecessors, (165), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2023-11-22 21:44:43,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2034 states and 3031 transitions. [2023-11-22 21:44:43,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-11-22 21:44:43,986 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:44:43,986 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:44:44,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-22 21:44:44,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-22 21:44:44,200 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:44:44,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:44:44,201 INFO L85 PathProgramCache]: Analyzing trace with hash -176831250, now seen corresponding path program 2 times [2023-11-22 21:44:44,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:44:44,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126337400] [2023-11-22 21:44:44,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:44,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:44:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:44:44,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:44:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:44:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:44:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:44:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:44:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:44:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:44:44,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:44:44,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 21:44:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:44:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:44:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 21:44:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 21:44:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-22 21:44:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 21:44:44,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-22 21:44:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:44,544 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 21:44:44,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:44:44,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126337400] [2023-11-22 21:44:44,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126337400] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:44:44,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960082012] [2023-11-22 21:44:44,544 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-22 21:44:44,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:44:44,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:44:44,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:44:44,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-22 21:44:45,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-22 21:44:45,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-22 21:44:45,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-22 21:44:45,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:44:45,509 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 21:44:45,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:44:45,713 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 21:44:45,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960082012] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-22 21:44:45,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-22 21:44:45,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 8] total 21 [2023-11-22 21:44:45,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655938792] [2023-11-22 21:44:45,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-22 21:44:45,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-22 21:44:45,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:44:45,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-22 21:44:45,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=268, Unknown=0, NotChecked=0, Total=420 [2023-11-22 21:44:45,715 INFO L87 Difference]: Start difference. First operand 2034 states and 3031 transitions. Second operand has 21 states, 21 states have (on average 8.714285714285714) internal successors, (183), 19 states have internal predecessors, (183), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2023-11-22 21:44:47,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:44:51,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:44:51,124 INFO L93 Difference]: Finished difference Result 3974 states and 6041 transitions. [2023-11-22 21:44:51,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-22 21:44:51,125 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.714285714285714) internal successors, (183), 19 states have internal predecessors, (183), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) Word has length 161 [2023-11-22 21:44:51,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:44:51,139 INFO L225 Difference]: With dead ends: 3974 [2023-11-22 21:44:51,140 INFO L226 Difference]: Without dead ends: 2471 [2023-11-22 21:44:51,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=239, Invalid=517, Unknown=0, NotChecked=0, Total=756 [2023-11-22 21:44:51,145 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 3585 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 3103 mSolverCounterSat, 1539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3742 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 4642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1539 IncrementalHoareTripleChecker+Valid, 3103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-22 21:44:51,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3742 Valid, 2982 Invalid, 4642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1539 Valid, 3103 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-22 21:44:51,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2023-11-22 21:44:51,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2046. [2023-11-22 21:44:51,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 1437 states have (on average 1.454418928322895) internal successors, (2090), 1478 states have internal predecessors, (2090), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 21:44:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 3049 transitions. [2023-11-22 21:44:51,244 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 3049 transitions. Word has length 161 [2023-11-22 21:44:51,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:44:51,247 INFO L495 AbstractCegarLoop]: Abstraction has 2046 states and 3049 transitions. [2023-11-22 21:44:51,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.714285714285714) internal successors, (183), 19 states have internal predecessors, (183), 4 states have call successors, (54), 5 states have call predecessors, (54), 3 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2023-11-22 21:44:51,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 3049 transitions. [2023-11-22 21:44:51,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-11-22 21:44:51,253 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:44:51,253 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:44:51,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-22 21:44:51,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-22 21:44:51,472 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:44:51,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:44:51,472 INFO L85 PathProgramCache]: Analyzing trace with hash -2045188147, now seen corresponding path program 1 times [2023-11-22 21:44:51,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:44:51,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939169609] [2023-11-22 21:44:51,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:51,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:44:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:51,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:44:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:51,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:44:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:51,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:44:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:51,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:44:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:51,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:44:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:51,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:44:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:51,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:44:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:51,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:44:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:44:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-22 21:44:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:52,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-22 21:44:52,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-22 21:44:52,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-22 21:44:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-22 21:44:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:44:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-11-22 21:44:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 21:44:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-22 21:44:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,182 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 21:44:52,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:44:52,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939169609] [2023-11-22 21:44:52,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939169609] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:44:52,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028561482] [2023-11-22 21:44:52,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:52,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:44:52,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:44:52,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:44:52,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-22 21:44:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:52,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-22 21:44:52,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:44:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-22 21:44:52,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:44:52,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028561482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:44:52,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:44:52,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-22 21:44:52,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596035424] [2023-11-22 21:44:52,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:44:52,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-22 21:44:52,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:44:52,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-22 21:44:52,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:44:52,756 INFO L87 Difference]: Start difference. First operand 2046 states and 3049 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 21:44:53,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:44:54,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:44:54,269 INFO L93 Difference]: Finished difference Result 3576 states and 5341 transitions. [2023-11-22 21:44:54,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-22 21:44:54,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 163 [2023-11-22 21:44:54,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:44:54,280 INFO L225 Difference]: With dead ends: 3576 [2023-11-22 21:44:54,280 INFO L226 Difference]: Without dead ends: 2046 [2023-11-22 21:44:54,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:44:54,284 INFO L413 NwaCegarLoop]: 1396 mSDtfsCounter, 2 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.4s IncrementalHoareTripleChecker+Time [2023-11-22 21:44:54,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2790 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-22 21:44:54,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2046 states. [2023-11-22 21:44:54,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2046 to 2046. [2023-11-22 21:44:54,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2046 states, 1437 states have (on average 1.4523312456506612) internal successors, (2087), 1478 states have internal predecessors, (2087), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 21:44:54,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2046 states to 2046 states and 3046 transitions. [2023-11-22 21:44:54,380 INFO L78 Accepts]: Start accepts. Automaton has 2046 states and 3046 transitions. Word has length 163 [2023-11-22 21:44:54,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:44:54,381 INFO L495 AbstractCegarLoop]: Abstraction has 2046 states and 3046 transitions. [2023-11-22 21:44:54,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 21:44:54,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2046 states and 3046 transitions. [2023-11-22 21:44:54,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-11-22 21:44:54,386 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:44:54,387 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:44:54,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-22 21:44:54,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:44:54,601 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:44:54,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:44:54,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1094517467, now seen corresponding path program 1 times [2023-11-22 21:44:54,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:44:54,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852259246] [2023-11-22 21:44:54,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:54,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:44:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:44:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:44:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:44:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:44:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:44:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:44:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:44:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:44:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:44:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 21:44:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-22 21:44:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:44:55,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:44:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:44:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-22 21:44:55,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-22 21:44:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-22 21:44:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 21:44:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2023-11-22 21:44:55,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:44:55,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852259246] [2023-11-22 21:44:55,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852259246] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:44:55,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27660329] [2023-11-22 21:44:55,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:55,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:44:55,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:44:55,183 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:44:55,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-22 21:44:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:55,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 1413 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-22 21:44:55,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:44:55,741 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-22 21:44:55,741 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:44:55,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27660329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:44:55,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:44:55,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-11-22 21:44:55,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858725371] [2023-11-22 21:44:55,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:44:55,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-22 21:44:55,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:44:55,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-22 21:44:55,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-22 21:44:55,746 INFO L87 Difference]: Start difference. First operand 2046 states and 3046 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 21:44:57,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:44:57,405 INFO L93 Difference]: Finished difference Result 4052 states and 6124 transitions. [2023-11-22 21:44:57,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-22 21:44:57,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 164 [2023-11-22 21:44:57,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:44:57,422 INFO L225 Difference]: With dead ends: 4052 [2023-11-22 21:44:57,423 INFO L226 Difference]: Without dead ends: 2537 [2023-11-22 21:44:57,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-22 21:44:57,427 INFO L413 NwaCegarLoop]: 1856 mSDtfsCounter, 362 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.5s IncrementalHoareTripleChecker+Time [2023-11-22 21:44:57,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 5162 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-22 21:44:57,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2023-11-22 21:44:57,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2048. [2023-11-22 21:44:57,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2048 states, 1439 states have (on average 1.4517025712300209) internal successors, (2089), 1480 states have internal predecessors, (2089), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 21:44:57,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2048 states to 2048 states and 3048 transitions. [2023-11-22 21:44:57,536 INFO L78 Accepts]: Start accepts. Automaton has 2048 states and 3048 transitions. Word has length 164 [2023-11-22 21:44:57,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:44:57,536 INFO L495 AbstractCegarLoop]: Abstraction has 2048 states and 3048 transitions. [2023-11-22 21:44:57,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-11-22 21:44:57,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2048 states and 3048 transitions. [2023-11-22 21:44:57,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-22 21:44:57,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:44:57,543 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:44:57,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-22 21:44:57,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:44:57,757 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:44:57,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:44:57,758 INFO L85 PathProgramCache]: Analyzing trace with hash 984961275, now seen corresponding path program 1 times [2023-11-22 21:44:57,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:44:57,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225781686] [2023-11-22 21:44:57,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:44:57,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:44:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:57,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:44:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:44:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:44:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:44:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:44:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:44:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:44:57,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:44:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:44:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 21:44:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:44:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-22 21:44:57,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:44:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:44:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:57,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:44:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:58,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-22 21:44:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:58,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-22 21:44:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:58,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-22 21:44:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:58,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-11-22 21:44:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-22 21:44:58,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:58,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-11-22 21:44:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:44:58,027 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-22 21:44:58,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:44:58,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225781686] [2023-11-22 21:44:58,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225781686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:44:58,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-22 21:44:58,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-22 21:44:58,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874345404] [2023-11-22 21:44:58,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:44:58,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-22 21:44:58,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:44:58,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-22 21:44:58,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-22 21:44:58,029 INFO L87 Difference]: Start difference. First operand 2048 states and 3048 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-22 21:45:02,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:45:02,429 INFO L93 Difference]: Finished difference Result 3958 states and 5995 transitions. [2023-11-22 21:45:02,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-22 21:45:02,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 169 [2023-11-22 21:45:02,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:45:02,459 INFO L225 Difference]: With dead ends: 3958 [2023-11-22 21:45:02,460 INFO L226 Difference]: Without dead ends: 2441 [2023-11-22 21:45:02,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-22 21:45:02,465 INFO L413 NwaCegarLoop]: 738 mSDtfsCounter, 1203 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 2864 mSolverCounterSat, 682 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 3546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 682 IncrementalHoareTripleChecker+Valid, 2864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-22 21:45:02,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 2662 Invalid, 3546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [682 Valid, 2864 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-22 21:45:02,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2441 states. [2023-11-22 21:45:02,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2441 to 2050. [2023-11-22 21:45:02,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 1441 states have (on average 1.4510756419153366) internal successors, (2091), 1482 states have internal predecessors, (2091), 480 states have call successors, (480), 129 states have call predecessors, (480), 128 states have return successors, (479), 474 states have call predecessors, (479), 479 states have call successors, (479) [2023-11-22 21:45:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 3050 transitions. [2023-11-22 21:45:02,611 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 3050 transitions. Word has length 169 [2023-11-22 21:45:02,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:45:02,612 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 3050 transitions. [2023-11-22 21:45:02,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-22 21:45:02,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 3050 transitions. [2023-11-22 21:45:02,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-22 21:45:02,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:45:02,618 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:45:02,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-22 21:45:02,619 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:45:02,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:45:02,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1823064826, now seen corresponding path program 1 times [2023-11-22 21:45:02,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:45:02,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433829900] [2023-11-22 21:45:02,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:45:02,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:45:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:45:03,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:45:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:45:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:45:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:45:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:45:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:45:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:45:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:45:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:45:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 21:45:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:45:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-22 21:45:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:45:03,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:45:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:45:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-22 21:45:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-11-22 21:45:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-22 21:45:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 21:45:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-22 21:45:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-22 21:45:03,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-11-22 21:45:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,202 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 21:45:03,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:45:03,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433829900] [2023-11-22 21:45:03,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433829900] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:45:03,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526407041] [2023-11-22 21:45:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:45:03,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:45:03,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:45:03,204 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:45:03,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-22 21:45:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:03,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 1602 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-22 21:45:03,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:45:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2023-11-22 21:45:03,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:45:03,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526407041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:45:03,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:45:03,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 12 [2023-11-22 21:45:03,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484739725] [2023-11-22 21:45:03,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:45:03,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-22 21:45:03,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:45:03,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-22 21:45:03,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-11-22 21:45:03,810 INFO L87 Difference]: Start difference. First operand 2050 states and 3050 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 21:45:05,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:45:07,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:45:07,095 INFO L93 Difference]: Finished difference Result 3582 states and 5347 transitions. [2023-11-22 21:45:07,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-22 21:45:07,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 176 [2023-11-22 21:45:07,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:45:07,100 INFO L225 Difference]: With dead ends: 3582 [2023-11-22 21:45:07,100 INFO L226 Difference]: Without dead ends: 2063 [2023-11-22 21:45:07,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-11-22 21:45:07,104 INFO L413 NwaCegarLoop]: 1399 mSDtfsCounter, 3 mSDsluCounter, 4182 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5581 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-22 21:45:07,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5581 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 444 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2023-11-22 21:45:07,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2023-11-22 21:45:07,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 2054. [2023-11-22 21:45:07,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2054 states, 1444 states have (on average 1.4501385041551247) internal successors, (2094), 1485 states have internal predecessors, (2094), 480 states have call successors, (480), 129 states have call predecessors, (480), 129 states have return successors, (483), 475 states have call predecessors, (483), 479 states have call successors, (483) [2023-11-22 21:45:07,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 3057 transitions. [2023-11-22 21:45:07,215 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 3057 transitions. Word has length 176 [2023-11-22 21:45:07,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:45:07,215 INFO L495 AbstractCegarLoop]: Abstraction has 2054 states and 3057 transitions. [2023-11-22 21:45:07,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-22 21:45:07,216 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 3057 transitions. [2023-11-22 21:45:07,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-11-22 21:45:07,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:45:07,221 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:45:07,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-22 21:45:07,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-22 21:45:07,429 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:45:07,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:45:07,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1284185580, now seen corresponding path program 1 times [2023-11-22 21:45:07,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:45:07,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115635640] [2023-11-22 21:45:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:45:07,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:45:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:07,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:45:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:07,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:45:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:07,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:45:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:07,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:45:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:07,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:45:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:07,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:45:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:07,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:45:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:07,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:45:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:07,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:45:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:07,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:45:07,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:07,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 21:45:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:45:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-22 21:45:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:45:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-22 21:45:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-22 21:45:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:45:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-22 21:45:08,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-22 21:45:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-11-22 21:45:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-22 21:45:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-22 21:45:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-22 21:45:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-11-22 21:45:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2023-11-22 21:45:08,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:45:08,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115635640] [2023-11-22 21:45:08,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115635640] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:45:08,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932588524] [2023-11-22 21:45:08,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:45:08,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:45:08,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:45:08,070 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:45:08,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-22 21:45:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:08,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 1628 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-22 21:45:08,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:45:08,782 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-11-22 21:45:08,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-22 21:45:08,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932588524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-22 21:45:08,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-22 21:45:08,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 10 [2023-11-22 21:45:08,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506787264] [2023-11-22 21:45:08,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-22 21:45:08,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-22 21:45:08,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:45:08,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-22 21:45:08,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-22 21:45:08,785 INFO L87 Difference]: Start difference. First operand 2054 states and 3057 transitions. Second operand has 7 states, 6 states have (on average 18.0) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-22 21:45:10,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:45:12,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:45:14,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:45:15,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-22 21:45:15,114 INFO L93 Difference]: Finished difference Result 3593 states and 5370 transitions. [2023-11-22 21:45:15,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-22 21:45:15,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) Word has length 182 [2023-11-22 21:45:15,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-22 21:45:15,126 INFO L225 Difference]: With dead ends: 3593 [2023-11-22 21:45:15,126 INFO L226 Difference]: Without dead ends: 2065 [2023-11-22 21:45:15,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-11-22 21:45:15,130 INFO L413 NwaCegarLoop]: 1409 mSDtfsCounter, 773 mSDsluCounter, 7007 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 8416 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-22 21:45:15,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 8416 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-22 21:45:15,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2023-11-22 21:45:15,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 2064. [2023-11-22 21:45:15,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2064 states, 1449 states have (on average 1.448585231193927) internal successors, (2099), 1492 states have internal predecessors, (2099), 480 states have call successors, (480), 129 states have call predecessors, (480), 134 states have return successors, (497), 478 states have call predecessors, (497), 479 states have call successors, (497) [2023-11-22 21:45:15,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2064 states to 2064 states and 3076 transitions. [2023-11-22 21:45:15,249 INFO L78 Accepts]: Start accepts. Automaton has 2064 states and 3076 transitions. Word has length 182 [2023-11-22 21:45:15,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-22 21:45:15,249 INFO L495 AbstractCegarLoop]: Abstraction has 2064 states and 3076 transitions. [2023-11-22 21:45:15,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.0) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (24), 4 states have call predecessors, (24), 2 states have call successors, (24) [2023-11-22 21:45:15,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states and 3076 transitions. [2023-11-22 21:45:15,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-11-22 21:45:15,255 INFO L187 NwaCegarLoop]: Found error trace [2023-11-22 21:45:15,255 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-22 21:45:15,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-22 21:45:15,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-22 21:45:15,471 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-22 21:45:15,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-22 21:45:15,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1273152186, now seen corresponding path program 1 times [2023-11-22 21:45:15,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-22 21:45:15,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301369066] [2023-11-22 21:45:15,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:45:15,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-22 21:45:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:20,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:45:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-22 21:45:21,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-22 21:45:21,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-22 21:45:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-22 21:45:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-22 21:45:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-22 21:45:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-22 21:45:21,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-22 21:45:21,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-22 21:45:21,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-22 21:45:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-22 21:45:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:45:21,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-22 21:45:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-22 21:45:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-22 21:45:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-22 21:45:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-22 21:45:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-22 21:45:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-11-22 21:45:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-11-22 21:45:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-11-22 21:45:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-22 21:45:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-22 21:45:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-22 21:45:21,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:21,400 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-22 21:45:21,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-22 21:45:21,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301369066] [2023-11-22 21:45:21,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301369066] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:45:21,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590877473] [2023-11-22 21:45:21,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-22 21:45:21,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-22 21:45:21,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-22 21:45:21,402 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-22 21:45:21,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-22 21:45:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-22 21:45:22,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 186 conjunts are in the unsatisfiable core [2023-11-22 21:45:22,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-22 21:45:22,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-22 21:45:22,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:45:22,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:45:22,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:45:22,596 INFO L349 Elim1Store]: treesize reduction 34, result has 29.2 percent of original size [2023-11-22 21:45:22,597 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 2 case distinctions, treesize of input 24 treesize of output 20 [2023-11-22 21:45:22,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:45:22,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-22 21:45:22,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-22 21:45:22,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2023-11-22 21:45:22,860 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-22 21:45:22,860 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 15 treesize of output 15 [2023-11-22 21:45:22,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-22 21:45:23,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-11-22 21:45:23,249 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 21:45:23,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 28 [2023-11-22 21:45:23,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2023-11-22 21:45:23,801 INFO L349 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-11-22 21:45:23,801 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 34 treesize of output 44 [2023-11-22 21:45:23,822 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-11-22 21:45:23,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 30 [2023-11-22 21:45:23,836 INFO L349 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2023-11-22 21:45:23,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 60 treesize of output 64 [2023-11-22 21:45:23,857 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 18 [2023-11-22 21:45:23,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2023-11-22 21:45:24,423 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-11-22 21:45:24,423 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 5 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 63 [2023-11-22 21:45:24,455 INFO L349 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2023-11-22 21:45:24,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 54 [2023-11-22 21:45:24,516 INFO L349 Elim1Store]: treesize reduction 38, result has 51.9 percent of original size [2023-11-22 21:45:24,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 96 treesize of output 101 [2023-11-22 21:45:24,532 INFO L349 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2023-11-22 21:45:24,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 38 [2023-11-22 21:45:24,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2023-11-22 21:45:24,643 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 [2023-11-22 21:45:24,683 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 [2023-11-22 21:45:24,753 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 46 treesize of output 40 [2023-11-22 21:45:24,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 69 [2023-11-22 21:45:25,170 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 21:45:25,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 58 [2023-11-22 21:45:25,177 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 21:45:25,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 39 treesize of output 33 [2023-11-22 21:45:25,190 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 [2023-11-22 21:45:25,195 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 [2023-11-22 21:45:25,208 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 [2023-11-22 21:45:25,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-22 21:45:25,771 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 [2023-11-22 21:45:25,784 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 21:45:25,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 43 [2023-11-22 21:45:25,796 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 [2023-11-22 21:45:26,283 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 [2023-11-22 21:45:26,292 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 [2023-11-22 21:45:26,303 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 21:45:26,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 43 [2023-11-22 21:45:27,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:45:27,197 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 [2023-11-22 21:45:27,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:45:27,207 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-22 21:45:27,209 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-22 21:45:27,210 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 96 treesize of output 40 [2023-11-22 21:45:27,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-22 21:45:27,214 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 [2023-11-22 21:45:27,218 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 [2023-11-22 21:45:27,333 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 65 proven. 13 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-22 21:45:27,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-22 21:45:27,420 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1089 (Array Int Int)) (v_ArrVal_1088 (Array Int Int)) (v_ArrVal_1087 (Array Int Int))) (let ((.cse0 (mod (let ((.cse1 (+ |c_ULTIMATE.start_slip_open_~sl~12#1.offset| 12))) (select (select (store |c_#memory_int#6| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1087) (select (select (store |c_#memory_$Pointer$#6.base| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1089) |c_ULTIMATE.start_slip_open_~sl~12#1.base|) .cse1)) (+ 112 (select (select (store |c_#memory_$Pointer$#6.offset| |c_ULTIMATE.start_slip_open_~tty#1.base| v_ArrVal_1088) |c_ULTIMATE.start_slip_open_~sl~12#1.base|) .cse1)))) 4294967296))) (or (< 2147483647 .cse0) (< .cse0 1)))) is different from false [2023-11-22 21:45:27,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590877473] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-22 21:45:27,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-22 21:45:27,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 38] total 68 [2023-11-22 21:45:27,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500723283] [2023-11-22 21:45:27,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-22 21:45:27,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2023-11-22 21:45:27,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-22 21:45:27,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2023-11-22 21:45:27,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=4465, Unknown=1, NotChecked=134, Total=4830 [2023-11-22 21:45:27,434 INFO L87 Difference]: Start difference. First operand 2064 states and 3076 transitions. Second operand has 68 states, 58 states have (on average 3.3620689655172415) internal successors, (195), 51 states have internal predecessors, (195), 24 states have call successors, (48), 13 states have call predecessors, (48), 17 states have return successors, (40), 26 states have call predecessors, (40), 23 states have call successors, (40) [2023-11-22 21:45:35,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:45:38,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:45:41,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:45:43,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:45:50,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:45:51,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:45:53,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:45:54,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:46:23,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:46:25,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:46:27,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:46:29,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:46:32,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:46:35,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:46:39,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-22 21:46:46,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:46:49,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:46:51,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:46:53,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:46:55,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:46:57,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:46:59,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:47:02,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:47:05,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:47:09,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:47:11,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:47:14,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-22 21:47:32,793 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 [] Killed by 15