./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--st.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--st.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ce02ab8620c6517fc65a07c19449c72687fa040b14d7c36fa40f0b6b2efeb3eb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:19:55,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:19:55,973 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 01:19:55,978 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:19:55,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:19:56,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:19:56,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:19:56,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:19:56,019 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:19:56,020 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:19:56,020 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:19:56,020 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:19:56,021 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:19:56,025 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:19:56,025 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:19:56,026 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:19:56,026 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:19:56,026 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:19:56,027 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:19:56,027 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:19:56,028 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:19:56,030 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:19:56,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:19:56,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:19:56,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:19:56,032 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:19:56,032 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:19:56,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:19:56,033 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:19:56,037 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:19:56,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:19:56,038 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:19:56,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:19:56,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:19:56,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:19:56,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:19:56,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:19:56,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:19:56,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:19:56,040 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:19:56,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:19:56,045 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:19:56,045 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:19:56,046 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:19:56,046 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce02ab8620c6517fc65a07c19449c72687fa040b14d7c36fa40f0b6b2efeb3eb [2024-11-09 01:19:56,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:19:56,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:19:56,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:19:56,384 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:19:56,384 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:19:56,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--st.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-09 01:19:58,283 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:19:58,957 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:19:58,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--st.ko-entry_point.cil.out.i [2024-11-09 01:19:59,012 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/data/8b6091ce8/f879969d757e426395cf108d67906908/FLAG628434434 [2024-11-09 01:19:59,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/data/8b6091ce8/f879969d757e426395cf108d67906908 [2024-11-09 01:19:59,354 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:19:59,356 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:19:59,357 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:19:59,357 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:19:59,363 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:19:59,366 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:19:59" (1/1) ... [2024-11-09 01:19:59,367 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db12773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:19:59, skipping insertion in model container [2024-11-09 01:19:59,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:19:59" (1/1) ... [2024-11-09 01:19:59,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:20:02,286 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--st.ko-entry_point.cil.out.i[348142,348155] [2024-11-09 01:20:02,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:20:02,624 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:20:02,810 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4410] [2024-11-09 01:20:02,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4412] [2024-11-09 01:20:02,813 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4422] [2024-11-09 01:20:02,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [4430-4431] [2024-11-09 01:20:02,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4449] [2024-11-09 01:20:02,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4452] [2024-11-09 01:20:02,817 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4455] [2024-11-09 01:20:02,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4458] [2024-11-09 01:20:02,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [4495-4496] [2024-11-09 01:20:02,820 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [4507-4508] [2024-11-09 01:20:02,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4511-4512] [2024-11-09 01:20:02,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4515-4516] [2024-11-09 01:20:02,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [4519-4520] [2024-11-09 01:20:02,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; addq %1,%0": "=m" (v->counter): "er" (i), "m" (v->counter)); [4540-4541] [2024-11-09 01:20:02,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incq %0": "=m" (v->counter): "m" (v->counter)); [4548] [2024-11-09 01:20:02,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decq %0": "=m" (v->counter): "m" (v->counter)); [4555] [2024-11-09 01:20:02,830 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [4715] [2024-11-09 01:20:02,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [4718] [2024-11-09 01:20:02,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [4720] [2024-11-09 01:20:02,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [4725] [2024-11-09 01:20:02,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [4728] [2024-11-09 01:20:02,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [4730] [2024-11-09 01:20:02,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [4735] [2024-11-09 01:20:02,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [4738] [2024-11-09 01:20:02,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [4740] [2024-11-09 01:20:02,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [4745] [2024-11-09 01:20:02,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [4748] [2024-11-09 01:20:02,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [4750] [2024-11-09 01:20:02,841 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4808] [2024-11-09 01:20:03,260 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--st.ko-entry_point.cil.out.i[348142,348155] [2024-11-09 01:20:03,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:20:03,462 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:20:03,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03 WrapperNode [2024-11-09 01:20:03,463 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:20:03,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:20:03,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:20:03,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:20:03,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (1/1) ... [2024-11-09 01:20:03,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (1/1) ... [2024-11-09 01:20:04,019 INFO L138 Inliner]: procedures = 339, calls = 4618, calls flagged for inlining = 148, calls inlined = 138, statements flattened = 10833 [2024-11-09 01:20:04,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:20:04,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:20:04,021 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:20:04,021 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:20:04,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (1/1) ... [2024-11-09 01:20:04,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (1/1) ... [2024-11-09 01:20:04,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (1/1) ... [2024-11-09 01:20:04,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (1/1) ... [2024-11-09 01:20:04,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (1/1) ... [2024-11-09 01:20:04,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (1/1) ... [2024-11-09 01:20:04,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (1/1) ... [2024-11-09 01:20:04,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (1/1) ... [2024-11-09 01:20:04,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:20:04,560 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:20:04,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:20:04,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:20:04,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (1/1) ... [2024-11-09 01:20:04,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:20:04,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:04,599 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:20:04,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:20:04,635 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_print_sense [2024-11-09 01:20:04,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_print_sense [2024-11-09 01:20:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-09 01:20:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-09 01:20:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2024-11-09 01:20:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2024-11-09 01:20:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 01:20:04,636 INFO L130 BoogieDeclarations]: Found specification of procedure driver_remove_file [2024-11-09 01:20:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_remove_file [2024-11-09 01:20:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 01:20:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 01:20:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 01:20:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 01:20:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 01:20:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure find_partition [2024-11-09 01:20:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure find_partition [2024-11-09 01:20:04,637 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2024-11-09 01:20:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2024-11-09 01:20:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2024-11-09 01:20:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2024-11-09 01:20:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2024-11-09 01:20:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2024-11-09 01:20:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-09 01:20:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-09 01:20:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 01:20:04,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 01:20:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure class_unregister [2024-11-09 01:20:04,640 INFO L138 BoogieDeclarations]: Found implementation of procedure class_unregister [2024-11-09 01:20:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 01:20:04,641 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 01:20:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 01:20:04,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 01:20:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2024-11-09 01:20:04,642 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2024-11-09 01:20:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 01:20:04,642 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 01:20:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 01:20:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 01:20:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure st_int_ioctl [2024-11-09 01:20:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure st_int_ioctl [2024-11-09 01:20:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_rq_timeout [2024-11-09 01:20:04,643 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_rq_timeout [2024-11-09 01:20:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode_densblk [2024-11-09 01:20:04,644 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode_densblk [2024-11-09 01:20:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-11-09 01:20:04,644 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-11-09 01:20:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2024-11-09 01:20:04,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2024-11-09 01:20:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 01:20:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_read [2024-11-09 01:20:04,644 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_read [2024-11-09 01:20:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_st_ref_mutex [2024-11-09 01:20:04,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_st_ref_mutex [2024-11-09 01:20:04,645 INFO L130 BoogieDeclarations]: Found specification of procedure read_mode_page [2024-11-09 01:20:04,646 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mode_page [2024-11-09 01:20:04,646 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2024-11-09 01:20:04,646 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2024-11-09 01:20:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 01:20:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2024-11-09 01:20:04,647 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2024-11-09 01:20:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure st_do_scsi [2024-11-09 01:20:04,647 INFO L138 BoogieDeclarations]: Found implementation of procedure st_do_scsi [2024-11-09 01:20:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 01:20:04,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 01:20:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2024-11-09 01:20:04,647 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2024-11-09 01:20:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-11-09 01:20:04,647 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-11-09 01:20:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_inc [2024-11-09 01:20:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_inc [2024-11-09 01:20:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2024-11-09 01:20:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2024-11-09 01:20:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 01:20:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure st_release_request [2024-11-09 01:20:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure st_release_request [2024-11-09 01:20:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 01:20:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure remove_cdevs [2024-11-09 01:20:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_cdevs [2024-11-09 01:20:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 01:20:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 01:20:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-09 01:20:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-09 01:20:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure get_location [2024-11-09 01:20:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure get_location [2024-11-09 01:20:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure st_compression [2024-11-09 01:20:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure st_compression [2024-11-09 01:20:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_put_device [2024-11-09 01:20:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_put_device [2024-11-09 01:20:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-09 01:20:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-09 01:20:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2024-11-09 01:20:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2024-11-09 01:20:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-09 01:20:04,651 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-09 01:20:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 01:20:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 01:20:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure check_tape [2024-11-09 01:20:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tape [2024-11-09 01:20:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 01:20:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 01:20:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure switch_partition [2024-11-09 01:20:04,652 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_partition [2024-11-09 01:20:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_scsi_tape [2024-11-09 01:20:04,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_scsi_tape [2024-11-09 01:20:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 01:20:04,653 INFO L130 BoogieDeclarations]: Found specification of procedure setup_buffering [2024-11-09 01:20:04,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_buffering [2024-11-09 01:20:04,654 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-09 01:20:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-09 01:20:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tape_put [2024-11-09 01:20:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tape_put [2024-11-09 01:20:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 01:20:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 01:20:04,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 01:20:04,655 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2024-11-09 01:20:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2024-11-09 01:20:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure st_log_options [2024-11-09 01:20:04,656 INFO L138 BoogieDeclarations]: Found implementation of procedure st_log_options [2024-11-09 01:20:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 01:20:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure create_one_cdev [2024-11-09 01:20:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure create_one_cdev [2024-11-09 01:20:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure queue_dma_alignment [2024-11-09 01:20:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_dma_alignment [2024-11-09 01:20:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure do_load_unload [2024-11-09 01:20:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure do_load_unload [2024-11-09 01:20:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure st_flush_write_buffer [2024-11-09 01:20:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure st_flush_write_buffer [2024-11-09 01:20:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 01:20:04,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 01:20:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure enlarge_buffer [2024-11-09 01:20:04,659 INFO L138 BoogieDeclarations]: Found implementation of procedure enlarge_buffer [2024-11-09 01:20:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2024-11-09 01:20:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2024-11-09 01:20:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure st_chk_result [2024-11-09 01:20:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure st_chk_result [2024-11-09 01:20:04,660 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 01:20:04,660 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 01:20:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure write_behind_check [2024-11-09 01:20:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure write_behind_check [2024-11-09 01:20:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 01:20:04,661 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-09 01:20:04,661 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-09 01:20:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2024-11-09 01:20:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2024-11-09 01:20:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 01:20:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 01:20:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2024-11-09 01:20:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2024-11-09 01:20:04,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-09 01:20:04,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-09 01:20:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_st_ref_mutex [2024-11-09 01:20:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_st_ref_mutex [2024-11-09 01:20:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 01:20:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-09 01:20:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-09 01:20:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-09 01:20:04,663 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-09 01:20:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:20:04,663 INFO L130 BoogieDeclarations]: Found specification of procedure deb_space_print [2024-11-09 01:20:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure deb_space_print [2024-11-09 01:20:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 01:20:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 01:20:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2024-11-09 01:20:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2024-11-09 01:20:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2024-11-09 01:20:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2024-11-09 01:20:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 01:20:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-11-09 01:20:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-11-09 01:20:04,664 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_prefix_printk [2024-11-09 01:20:04,664 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_prefix_printk [2024-11-09 01:20:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure driver_create_file [2024-11-09 01:20:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_create_file [2024-11-09 01:20:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure release_buffering [2024-11-09 01:20:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure release_buffering [2024-11-09 01:20:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2024-11-09 01:20:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2024-11-09 01:20:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2024-11-09 01:20:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2024-11-09 01:20:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_page [2024-11-09 01:20:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_page [2024-11-09 01:20:04,665 INFO L130 BoogieDeclarations]: Found specification of procedure st_flush [2024-11-09 01:20:04,665 INFO L138 BoogieDeclarations]: Found implementation of procedure st_flush [2024-11-09 01:20:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 01:20:04,666 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 01:20:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure rw_checks [2024-11-09 01:20:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure rw_checks [2024-11-09 01:20:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2024-11-09 01:20:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2024-11-09 01:20:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2024-11-09 01:20:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2024-11-09 01:20:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2024-11-09 01:20:04,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2024-11-09 01:20:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure st_write [2024-11-09 01:20:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure st_write [2024-11-09 01:20:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 01:20:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 01:20:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:20:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_get_device [2024-11-09 01:20:04,669 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_get_device [2024-11-09 01:20:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure set_location [2024-11-09 01:20:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure set_location [2024-11-09 01:20:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:20:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:20:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-09 01:20:04,670 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-09 01:20:06,218 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:20:06,225 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:20:06,376 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 01:20:32,379 INFO L? ?]: Removed 3780 outVars from TransFormulas that were not future-live. [2024-11-09 01:20:32,380 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:20:39,489 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:20:39,490 INFO L316 CfgBuilder]: Removed 21 assume(true) statements. [2024-11-09 01:20:39,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:20:39 BoogieIcfgContainer [2024-11-09 01:20:39,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:20:39,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:20:39,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:20:39,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:20:39,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:19:59" (1/3) ... [2024-11-09 01:20:39,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d748dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:20:39, skipping insertion in model container [2024-11-09 01:20:39,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:03" (2/3) ... [2024-11-09 01:20:39,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d748dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:20:39, skipping insertion in model container [2024-11-09 01:20:39,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:20:39" (3/3) ... [2024-11-09 01:20:39,502 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--st.ko-entry_point.cil.out.i [2024-11-09 01:20:39,523 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:20:39,523 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:20:39,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:20:39,665 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@5359bab8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:20:39,665 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:20:39,678 INFO L276 IsEmpty]: Start isEmpty. Operand has 2349 states, 1565 states have (on average 1.4159744408945687) internal successors, (2216), 1613 states have internal predecessors, (2216), 688 states have call successors, (688), 95 states have call predecessors, (688), 94 states have return successors, (665), 664 states have call predecessors, (665), 665 states have call successors, (665) [2024-11-09 01:20:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2024-11-09 01:20:39,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:39,741 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:20:39,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:20:39,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:39,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1172161251, now seen corresponding path program 1 times [2024-11-09 01:20:39,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:39,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857353477] [2024-11-09 01:20:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:39,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 16726 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16726 trivial. 0 not checked. [2024-11-09 01:20:57,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:57,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857353477] [2024-11-09 01:20:57,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857353477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:20:57,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:20:57,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:20:57,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501913009] [2024-11-09 01:20:57,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:20:57,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:20:57,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:57,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:20:57,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:20:57,966 INFO L87 Difference]: Start difference. First operand has 2349 states, 1565 states have (on average 1.4159744408945687) internal successors, (2216), 1613 states have internal predecessors, (2216), 688 states have call successors, (688), 95 states have call predecessors, (688), 94 states have return successors, (665), 664 states have call predecessors, (665), 665 states have call successors, (665) Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-09 01:21:00,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:21:04,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:21:08,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:21:10,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:21:14,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:21:15,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:21:18,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:21:20,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:21:22,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:21:24,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:21:25,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:21:27,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:21:29,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:21:31,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:21:34,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:21:36,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:21:37,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:21:37,857 INFO L93 Difference]: Finished difference Result 6604 states and 10076 transitions. [2024-11-09 01:21:37,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:21:37,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 794 [2024-11-09 01:21:37,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:21:37,922 INFO L225 Difference]: With dead ends: 6604 [2024-11-09 01:21:37,923 INFO L226 Difference]: Without dead ends: 4339 [2024-11-09 01:21:37,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:21:37,944 INFO L432 NwaCegarLoop]: 3186 mSDtfsCounter, 3293 mSDsluCounter, 2981 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 2 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3293 SdHoareTripleChecker+Valid, 6167 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:21:37,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3293 Valid, 6167 Invalid, 754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 740 Invalid, 12 Unknown, 0 Unchecked, 39.5s Time] [2024-11-09 01:21:37,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2024-11-09 01:21:38,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 4320. [2024-11-09 01:21:38,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4320 states, 2942 states have (on average 1.4106050305914344) internal successors, (4150), 2978 states have internal predecessors, (4150), 1196 states have call successors, (1196), 182 states have call predecessors, (1196), 181 states have return successors, (1187), 1183 states have call predecessors, (1187), 1187 states have call successors, (1187) [2024-11-09 01:21:38,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4320 states to 4320 states and 6533 transitions. [2024-11-09 01:21:38,342 INFO L78 Accepts]: Start accepts. Automaton has 4320 states and 6533 transitions. Word has length 794 [2024-11-09 01:21:38,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:21:38,345 INFO L471 AbstractCegarLoop]: Abstraction has 4320 states and 6533 transitions. [2024-11-09 01:21:38,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-09 01:21:38,345 INFO L276 IsEmpty]: Start isEmpty. Operand 4320 states and 6533 transitions. [2024-11-09 01:21:38,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 800 [2024-11-09 01:21:38,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:21:38,373 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:21:38,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:21:38,373 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:21:38,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:21:38,374 INFO L85 PathProgramCache]: Analyzing trace with hash 406883418, now seen corresponding path program 1 times [2024-11-09 01:21:38,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:21:38,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299736030] [2024-11-09 01:21:38,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:21:38,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:21:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:21:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 16726 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16726 trivial. 0 not checked. [2024-11-09 01:21:53,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:21:53,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299736030] [2024-11-09 01:21:53,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299736030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:21:53,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:21:53,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:21:53,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483574352] [2024-11-09 01:21:53,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:21:53,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:21:53,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:21:53,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:21:53,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:21:53,890 INFO L87 Difference]: Start difference. First operand 4320 states and 6533 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-11-09 01:21:56,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:22:03,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:22:06,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:22:08,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:22:10,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:22:12,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:22:14,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:22:18,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:22:20,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:22:23,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:22:25,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:22:26,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:26,748 INFO L93 Difference]: Finished difference Result 9313 states and 14070 transitions. [2024-11-09 01:22:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:22:26,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 799 [2024-11-09 01:22:26,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:26,789 INFO L225 Difference]: With dead ends: 9313 [2024-11-09 01:22:26,789 INFO L226 Difference]: Without dead ends: 5130 [2024-11-09 01:22:26,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:22:26,814 INFO L432 NwaCegarLoop]: 3271 mSDtfsCounter, 973 mSDsluCounter, 2912 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 6183 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:26,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 6183 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 792 Invalid, 8 Unknown, 0 Unchecked, 32.5s Time] [2024-11-09 01:22:26,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5130 states. [2024-11-09 01:22:27,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5130 to 5114. [2024-11-09 01:22:27,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5114 states, 3518 states have (on average 1.4212620807276861) internal successors, (5000), 3568 states have internal predecessors, (5000), 1364 states have call successors, (1364), 232 states have call predecessors, (1364), 231 states have return successors, (1355), 1349 states have call predecessors, (1355), 1355 states have call successors, (1355) [2024-11-09 01:22:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5114 states to 5114 states and 7719 transitions. [2024-11-09 01:22:27,090 INFO L78 Accepts]: Start accepts. Automaton has 5114 states and 7719 transitions. Word has length 799 [2024-11-09 01:22:27,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:27,092 INFO L471 AbstractCegarLoop]: Abstraction has 5114 states and 7719 transitions. [2024-11-09 01:22:27,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-11-09 01:22:27,093 INFO L276 IsEmpty]: Start isEmpty. Operand 5114 states and 7719 transitions. [2024-11-09 01:22:27,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2024-11-09 01:22:27,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:27,120 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:27,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:22:27,120 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:27,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:27,121 INFO L85 PathProgramCache]: Analyzing trace with hash -435776027, now seen corresponding path program 1 times [2024-11-09 01:22:27,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:22:27,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519497044] [2024-11-09 01:22:27,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:27,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:22:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:41,635 INFO L134 CoverageAnalysis]: Checked inductivity of 16728 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16728 trivial. 0 not checked. [2024-11-09 01:22:41,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:22:41,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519497044] [2024-11-09 01:22:41,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519497044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:41,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:41,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:22:41,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519297592] [2024-11-09 01:22:41,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:41,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:22:41,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:22:41,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:22:41,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:22:41,639 INFO L87 Difference]: Start difference. First operand 5114 states and 7719 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 01:22:43,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:22:48,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:22:51,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:22:53,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:22:56,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:22:57,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:57,382 INFO L93 Difference]: Finished difference Result 5116 states and 7720 transitions. [2024-11-09 01:22:57,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:22:57,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 800 [2024-11-09 01:22:57,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:57,421 INFO L225 Difference]: With dead ends: 5116 [2024-11-09 01:22:57,421 INFO L226 Difference]: Without dead ends: 5113 [2024-11-09 01:22:57,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:22:57,427 INFO L432 NwaCegarLoop]: 3134 mSDtfsCounter, 3349 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3349 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:57,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3349 Valid, 3134 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 4 Unknown, 0 Unchecked, 15.6s Time] [2024-11-09 01:22:57,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5113 states. [2024-11-09 01:22:57,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5113 to 5113. [2024-11-09 01:22:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 3518 states have (on average 1.4209778283115406) internal successors, (4999), 3567 states have internal predecessors, (4999), 1363 states have call successors, (1363), 232 states have call predecessors, (1363), 231 states have return successors, (1355), 1349 states have call predecessors, (1355), 1355 states have call successors, (1355) [2024-11-09 01:22:57,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 7717 transitions. [2024-11-09 01:22:57,851 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 7717 transitions. Word has length 800 [2024-11-09 01:22:57,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:57,853 INFO L471 AbstractCegarLoop]: Abstraction has 5113 states and 7717 transitions. [2024-11-09 01:22:57,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 01:22:57,854 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 7717 transitions. [2024-11-09 01:22:57,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2024-11-09 01:22:57,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:57,862 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:22:57,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:22:57,863 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:57,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:57,863 INFO L85 PathProgramCache]: Analyzing trace with hash -625268737, now seen corresponding path program 1 times [2024-11-09 01:22:57,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:22:57,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540339469] [2024-11-09 01:22:57,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:57,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:23:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:23:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 16728 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16728 trivial. 0 not checked. [2024-11-09 01:23:12,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:23:12,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540339469] [2024-11-09 01:23:12,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540339469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:23:12,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:23:12,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:23:12,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625808122] [2024-11-09 01:23:12,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:23:12,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:23:12,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:23:12,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:23:12,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:23:12,253 INFO L87 Difference]: Start difference. First operand 5113 states and 7717 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 01:23:14,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:23:16,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:23:20,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:23:23,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:23:24,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:23:26,818 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 [] [2024-11-09 01:23:30,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:23:30,019 INFO L93 Difference]: Finished difference Result 5115 states and 7718 transitions. [2024-11-09 01:23:30,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:23:30,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 801 [2024-11-09 01:23:30,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:23:30,058 INFO L225 Difference]: With dead ends: 5115 [2024-11-09 01:23:30,058 INFO L226 Difference]: Without dead ends: 5112 [2024-11-09 01:23:30,062 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:23:30,063 INFO L432 NwaCegarLoop]: 3132 mSDtfsCounter, 3346 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3346 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:23:30,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3346 Valid, 3132 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 4 Unknown, 0 Unchecked, 17.6s Time] [2024-11-09 01:23:30,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5112 states. [2024-11-09 01:23:30,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5112 to 5112. [2024-11-09 01:23:30,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5112 states, 3518 states have (on average 1.4206935758953951) internal successors, (4998), 3566 states have internal predecessors, (4998), 1362 states have call successors, (1362), 232 states have call predecessors, (1362), 231 states have return successors, (1355), 1349 states have call predecessors, (1355), 1355 states have call successors, (1355) [2024-11-09 01:23:30,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5112 states to 5112 states and 7715 transitions. [2024-11-09 01:23:30,389 INFO L78 Accepts]: Start accepts. Automaton has 5112 states and 7715 transitions. Word has length 801 [2024-11-09 01:23:30,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:23:30,390 INFO L471 AbstractCegarLoop]: Abstraction has 5112 states and 7715 transitions. [2024-11-09 01:23:30,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 01:23:30,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5112 states and 7715 transitions. [2024-11-09 01:23:30,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2024-11-09 01:23:30,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:23:30,398 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:23:30,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 01:23:30,399 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:23:30,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:23:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash 2090396712, now seen corresponding path program 1 times [2024-11-09 01:23:30,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:23:30,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023997534] [2024-11-09 01:23:30,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:23:30,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:23:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:23:46,414 INFO L134 CoverageAnalysis]: Checked inductivity of 16728 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16728 trivial. 0 not checked. [2024-11-09 01:23:46,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:23:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023997534] [2024-11-09 01:23:46,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023997534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:23:46,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:23:46,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:23:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523929399] [2024-11-09 01:23:46,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:23:46,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:23:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:23:46,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:23:46,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:23:46,422 INFO L87 Difference]: Start difference. First operand 5112 states and 7715 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 01:23:48,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:23:56,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:23:59,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:01,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:03,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:24:05,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:24:07,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:09,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:11,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:13,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:16,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:24:17,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:24:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:24:18,798 INFO L93 Difference]: Finished difference Result 8523 states and 12800 transitions. [2024-11-09 01:24:18,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:24:18,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 802 [2024-11-09 01:24:18,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:24:18,879 INFO L225 Difference]: With dead ends: 8523 [2024-11-09 01:24:18,879 INFO L226 Difference]: Without dead ends: 8519 [2024-11-09 01:24:18,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:24:18,886 INFO L432 NwaCegarLoop]: 3294 mSDtfsCounter, 2171 mSDsluCounter, 2888 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 4 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 6182 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:24:18,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 6182 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 753 Invalid, 10 Unknown, 0 Unchecked, 32.1s Time] [2024-11-09 01:24:18,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8519 states. [2024-11-09 01:24:19,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8519 to 8515. [2024-11-09 01:24:19,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8515 states, 5875 states have (on average 1.4226382978723404) internal successors, (8358), 5963 states have internal predecessors, (8358), 2216 states have call successors, (2216), 426 states have call predecessors, (2216), 423 states have return successors, (2217), 2193 states have call predecessors, (2217), 2209 states have call successors, (2217) [2024-11-09 01:24:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8515 states to 8515 states and 12791 transitions. [2024-11-09 01:24:19,443 INFO L78 Accepts]: Start accepts. Automaton has 8515 states and 12791 transitions. Word has length 802 [2024-11-09 01:24:19,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:24:19,446 INFO L471 AbstractCegarLoop]: Abstraction has 8515 states and 12791 transitions. [2024-11-09 01:24:19,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 01:24:19,447 INFO L276 IsEmpty]: Start isEmpty. Operand 8515 states and 12791 transitions. [2024-11-09 01:24:19,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2024-11-09 01:24:19,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:24:19,455 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:24:19,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 01:24:19,456 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:24:19,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:24:19,456 INFO L85 PathProgramCache]: Analyzing trace with hash 376684578, now seen corresponding path program 1 times [2024-11-09 01:24:19,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:24:19,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200725982] [2024-11-09 01:24:19,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:24:19,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:24:34,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:24:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 16728 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16728 trivial. 0 not checked. [2024-11-09 01:24:35,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:24:35,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200725982] [2024-11-09 01:24:35,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200725982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:24:35,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:24:35,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:24:35,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133826198] [2024-11-09 01:24:35,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:24:35,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:24:35,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:24:35,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:24:35,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:24:35,471 INFO L87 Difference]: Start difference. First operand 8515 states and 12791 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 01:24:37,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:43,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:45,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:24:47,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:49,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:24:52,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:24:52,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:24:52,837 INFO L93 Difference]: Finished difference Result 8517 states and 12792 transitions. [2024-11-09 01:24:52,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:24:52,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 803 [2024-11-09 01:24:52,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:24:52,881 INFO L225 Difference]: With dead ends: 8517 [2024-11-09 01:24:52,881 INFO L226 Difference]: Without dead ends: 8514 [2024-11-09 01:24:52,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:24:52,888 INFO L432 NwaCegarLoop]: 3130 mSDtfsCounter, 3342 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3342 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:24:52,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3342 Valid, 3130 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 368 Invalid, 4 Unknown, 0 Unchecked, 17.1s Time] [2024-11-09 01:24:52,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8514 states. [2024-11-09 01:24:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8514 to 8514. [2024-11-09 01:24:53,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8514 states, 5875 states have (on average 1.422468085106383) internal successors, (8357), 5962 states have internal predecessors, (8357), 2215 states have call successors, (2215), 426 states have call predecessors, (2215), 423 states have return successors, (2217), 2193 states have call predecessors, (2217), 2209 states have call successors, (2217) [2024-11-09 01:24:53,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8514 states to 8514 states and 12789 transitions. [2024-11-09 01:24:53,461 INFO L78 Accepts]: Start accepts. Automaton has 8514 states and 12789 transitions. Word has length 803 [2024-11-09 01:24:53,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:24:53,462 INFO L471 AbstractCegarLoop]: Abstraction has 8514 states and 12789 transitions. [2024-11-09 01:24:53,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 01:24:53,463 INFO L276 IsEmpty]: Start isEmpty. Operand 8514 states and 12789 transitions. [2024-11-09 01:24:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2024-11-09 01:24:53,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:24:53,470 INFO L215 NwaCegarLoop]: trace histogram [58, 58, 58, 58, 58, 58, 58, 58, 58, 8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:24:53,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 01:24:53,471 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:24:53,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:24:53,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1208779157, now seen corresponding path program 1 times [2024-11-09 01:24:53,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:24:53,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548853811] [2024-11-09 01:24:53,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:24:53,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:25:07,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:08,048 INFO L134 CoverageAnalysis]: Checked inductivity of 16728 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16728 trivial. 0 not checked. [2024-11-09 01:25:08,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:25:08,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548853811] [2024-11-09 01:25:08,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548853811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:08,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:08,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:25:08,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764601147] [2024-11-09 01:25:08,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:08,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:25:08,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:25:08,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:25:08,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:08,053 INFO L87 Difference]: Start difference. First operand 8514 states and 12789 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 01:25:10,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:16,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:18,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:25:20,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:22,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:25,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:25:26,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:26,105 INFO L93 Difference]: Finished difference Result 8666 states and 12921 transitions. [2024-11-09 01:25:26,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:25:26,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 804 [2024-11-09 01:25:26,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:26,154 INFO L225 Difference]: With dead ends: 8666 [2024-11-09 01:25:26,155 INFO L226 Difference]: Without dead ends: 8615 [2024-11-09 01:25:26,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:26,167 INFO L432 NwaCegarLoop]: 3126 mSDtfsCounter, 3205 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3205 SdHoareTripleChecker+Valid, 3263 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:26,167 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3205 Valid, 3263 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 396 Invalid, 4 Unknown, 0 Unchecked, 17.8s Time] [2024-11-09 01:25:26,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8615 states. [2024-11-09 01:25:26,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8615 to 8613. [2024-11-09 01:25:26,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8613 states, 5942 states have (on average 1.4178727701110738) internal successors, (8425), 6024 states have internal predecessors, (8425), 2197 states have call successors, (2197), 476 states have call predecessors, (2197), 473 states have return successors, (2201), 2180 states have call predecessors, (2201), 2193 states have call successors, (2201) [2024-11-09 01:25:26,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8613 states to 8613 states and 12823 transitions. [2024-11-09 01:25:26,831 INFO L78 Accepts]: Start accepts. Automaton has 8613 states and 12823 transitions. Word has length 804 [2024-11-09 01:25:26,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:26,832 INFO L471 AbstractCegarLoop]: Abstraction has 8613 states and 12823 transitions. [2024-11-09 01:25:26,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 01:25:26,832 INFO L276 IsEmpty]: Start isEmpty. Operand 8613 states and 12823 transitions. [2024-11-09 01:25:26,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2024-11-09 01:25:26,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:26,845 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 61, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:25:26,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 01:25:26,846 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:25:26,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:26,846 INFO L85 PathProgramCache]: Analyzing trace with hash 2024985639, now seen corresponding path program 1 times [2024-11-09 01:25:26,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:25:26,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469120113] [2024-11-09 01:25:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:26,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:25:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:41,601 INFO L134 CoverageAnalysis]: Checked inductivity of 18503 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18500 trivial. 0 not checked. [2024-11-09 01:25:41,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:25:41,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469120113] [2024-11-09 01:25:41,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469120113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:41,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:25:41,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:25:41,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024986140] [2024-11-09 01:25:41,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:41,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:25:41,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:25:41,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:25:41,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:25:41,604 INFO L87 Difference]: Start difference. First operand 8613 states and 12823 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (82), 3 states have call predecessors, (82), 3 states have call successors, (82) [2024-11-09 01:25:43,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:45,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:55,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:25:57,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:25:59,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:26:01,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:26:04,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:06,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:08,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:09,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:11,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:13,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:17,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:26:19,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:26:21,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:26:23,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:23,235 INFO L93 Difference]: Finished difference Result 20967 states and 31238 transitions. [2024-11-09 01:26:23,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:26:23,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (82), 3 states have call predecessors, (82), 3 states have call successors, (82) Word has length 881 [2024-11-09 01:26:23,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:23,310 INFO L225 Difference]: With dead ends: 20967 [2024-11-09 01:26:23,310 INFO L226 Difference]: Without dead ends: 12504 [2024-11-09 01:26:23,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:23,354 INFO L432 NwaCegarLoop]: 3958 mSDtfsCounter, 3250 mSDsluCounter, 2939 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 4 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3250 SdHoareTripleChecker+Valid, 6897 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.0s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:23,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3250 Valid, 6897 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 799 Invalid, 13 Unknown, 0 Unchecked, 41.0s Time] [2024-11-09 01:26:23,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12504 states. [2024-11-09 01:26:24,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12504 to 12491. [2024-11-09 01:26:24,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12491 states, 8670 states have (on average 1.4223760092272204) internal successors, (12332), 8785 states have internal predecessors, (12332), 3133 states have call successors, (3133), 691 states have call predecessors, (3133), 687 states have return successors, (3141), 3108 states have call predecessors, (3141), 3129 states have call successors, (3141) [2024-11-09 01:26:24,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12491 states to 12491 states and 18606 transitions. [2024-11-09 01:26:24,230 INFO L78 Accepts]: Start accepts. Automaton has 12491 states and 18606 transitions. Word has length 881 [2024-11-09 01:26:24,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:24,231 INFO L471 AbstractCegarLoop]: Abstraction has 12491 states and 18606 transitions. [2024-11-09 01:26:24,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (82), 3 states have call predecessors, (82), 3 states have call successors, (82) [2024-11-09 01:26:24,235 INFO L276 IsEmpty]: Start isEmpty. Operand 12491 states and 18606 transitions. [2024-11-09 01:26:24,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2024-11-09 01:26:24,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:24,250 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 61, 8, 8, 8, 8, 8, 8, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:26:24,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 01:26:24,250 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:26:24,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:24,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1182752546, now seen corresponding path program 1 times [2024-11-09 01:26:24,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:24,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098269420] [2024-11-09 01:26:24,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:24,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:40,292 INFO L134 CoverageAnalysis]: Checked inductivity of 18515 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18509 trivial. 0 not checked. [2024-11-09 01:26:40,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:40,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098269420] [2024-11-09 01:26:40,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098269420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:40,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:40,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:26:40,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533356443] [2024-11-09 01:26:40,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:40,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:26:40,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:40,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:26:40,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:40,295 INFO L87 Difference]: Start difference. First operand 12491 states and 18606 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2024-11-09 01:26:42,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:44,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:48,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:52,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:55,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:57,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:26:59,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:02,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:27:04,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:27:06,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:09,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:11,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:27:14,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:27:15,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:27:15,850 INFO L93 Difference]: Finished difference Result 32047 states and 47612 transitions. [2024-11-09 01:27:15,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:27:15,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 882 [2024-11-09 01:27:15,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:27:15,969 INFO L225 Difference]: With dead ends: 32047 [2024-11-09 01:27:15,969 INFO L226 Difference]: Without dead ends: 19706 [2024-11-09 01:27:16,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:16,031 INFO L432 NwaCegarLoop]: 3601 mSDtfsCounter, 2448 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 16 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 6547 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:27:16,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 6547 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 801 Invalid, 9 Unknown, 0 Unchecked, 34.8s Time] [2024-11-09 01:27:16,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19706 states. [2024-11-09 01:27:17,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19706 to 19695. [2024-11-09 01:27:17,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19695 states, 13704 states have (on average 1.4186368943374197) internal successors, (19441), 13869 states have internal predecessors, (19441), 4854 states have call successors, (4854), 1143 states have call predecessors, (4854), 1136 states have return successors, (4862), 4823 states have call predecessors, (4862), 4850 states have call successors, (4862) [2024-11-09 01:27:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19695 states to 19695 states and 29157 transitions. [2024-11-09 01:27:17,403 INFO L78 Accepts]: Start accepts. Automaton has 19695 states and 29157 transitions. Word has length 882 [2024-11-09 01:27:17,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:27:17,404 INFO L471 AbstractCegarLoop]: Abstraction has 19695 states and 29157 transitions. [2024-11-09 01:27:17,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (82), 2 states have call predecessors, (82), 1 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2024-11-09 01:27:17,404 INFO L276 IsEmpty]: Start isEmpty. Operand 19695 states and 29157 transitions. [2024-11-09 01:27:17,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2024-11-09 01:27:17,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:27:17,419 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 61, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:27:17,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 01:27:17,420 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:27:17,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:27:17,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1613048288, now seen corresponding path program 1 times [2024-11-09 01:27:17,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:27:17,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813347088] [2024-11-09 01:27:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:27:17,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:27:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:27:35,157 INFO L134 CoverageAnalysis]: Checked inductivity of 18511 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18511 trivial. 0 not checked. [2024-11-09 01:27:35,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:27:35,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813347088] [2024-11-09 01:27:35,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813347088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:27:35,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:27:35,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:27:35,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117222931] [2024-11-09 01:27:35,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:27:35,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:27:35,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:27:35,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:27:35,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:27:35,162 INFO L87 Difference]: Start difference. First operand 19695 states and 29157 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-09 01:27:37,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:39,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:42,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:49,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:51,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:27:54,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:27:56,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:27:59,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:01,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:05,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:28:07,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:28:08,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:28:08,661 INFO L93 Difference]: Finished difference Result 39312 states and 58231 transitions. [2024-11-09 01:28:08,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:28:08,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 889 [2024-11-09 01:28:08,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:28:08,785 INFO L225 Difference]: With dead ends: 39312 [2024-11-09 01:28:08,785 INFO L226 Difference]: Without dead ends: 19767 [2024-11-09 01:28:08,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:28:08,879 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 6 mSDsluCounter, 3124 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6248 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:28:08,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6248 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 9 Unknown, 0 Unchecked, 32.7s Time] [2024-11-09 01:28:08,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19767 states. [2024-11-09 01:28:10,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19767 to 19707. [2024-11-09 01:28:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19707 states, 13716 states have (on average 1.418270632837562) internal successors, (19453), 13881 states have internal predecessors, (19453), 4854 states have call successors, (4854), 1143 states have call predecessors, (4854), 1136 states have return successors, (4862), 4823 states have call predecessors, (4862), 4850 states have call successors, (4862) [2024-11-09 01:28:10,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19707 states to 19707 states and 29169 transitions. [2024-11-09 01:28:10,280 INFO L78 Accepts]: Start accepts. Automaton has 19707 states and 29169 transitions. Word has length 889 [2024-11-09 01:28:10,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:28:10,281 INFO L471 AbstractCegarLoop]: Abstraction has 19707 states and 29169 transitions. [2024-11-09 01:28:10,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-09 01:28:10,281 INFO L276 IsEmpty]: Start isEmpty. Operand 19707 states and 29169 transitions. [2024-11-09 01:28:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2024-11-09 01:28:10,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:28:10,296 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 61, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:28:10,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 01:28:10,297 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:28:10,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash -549453155, now seen corresponding path program 1 times [2024-11-09 01:28:10,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:28:10,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002172727] [2024-11-09 01:28:10,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:10,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:28:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:30,377 INFO L134 CoverageAnalysis]: Checked inductivity of 18507 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18507 trivial. 0 not checked. [2024-11-09 01:28:30,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:28:30,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002172727] [2024-11-09 01:28:30,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002172727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:28:30,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:28:30,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 01:28:30,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669092255] [2024-11-09 01:28:30,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:28:30,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 01:28:30,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:28:30,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 01:28:30,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:28:30,388 INFO L87 Difference]: Start difference. First operand 19707 states and 29169 transitions. Second operand has 6 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (83), 3 states have call predecessors, (83), 2 states have return successors, (80), 3 states have call predecessors, (80), 2 states have call successors, (80) [2024-11-09 01:28:32,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:34,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:36,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:39,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:41,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:47,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:57,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:28:59,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:02,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:05,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:07,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:09,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:11,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:13,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:18,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:29:20,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:29:22,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:29:24,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:29:26,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:29:30,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:32,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:34,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:37,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:39,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:41,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:42,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:29:47,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:29:49,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:29:51,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:29:52,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:29:54,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:29:56,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:56,836 INFO L93 Difference]: Finished difference Result 23366 states and 34380 transitions. [2024-11-09 01:29:56,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:29:56,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (83), 3 states have call predecessors, (83), 2 states have return successors, (80), 3 states have call predecessors, (80), 2 states have call successors, (80) Word has length 890 [2024-11-09 01:29:56,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:56,998 INFO L225 Difference]: With dead ends: 23366 [2024-11-09 01:29:56,998 INFO L226 Difference]: Without dead ends: 23363 [2024-11-09 01:29:57,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 01:29:57,017 INFO L432 NwaCegarLoop]: 3659 mSDtfsCounter, 3404 mSDsluCounter, 8863 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 1240 mSolverCounterUnsat, 23 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3404 SdHoareTripleChecker+Valid, 12522 SdHoareTripleChecker+Invalid, 2765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1240 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 23 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:57,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3404 Valid, 12522 Invalid, 2765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1240 Valid, 1502 Invalid, 23 Unknown, 0 Unchecked, 85.3s Time] [2024-11-09 01:29:57,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23363 states. [2024-11-09 01:29:58,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23363 to 23363. [2024-11-09 01:29:58,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23363 states, 16144 states have (on average 1.4098116947472745) internal successors, (22760), 16318 states have internal predecessors, (22760), 5802 states have call successors, (5802), 1426 states have call predecessors, (5802), 1416 states have return successors, (5810), 5771 states have call predecessors, (5810), 5798 states have call successors, (5810) [2024-11-09 01:29:58,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23363 states to 23363 states and 34372 transitions. [2024-11-09 01:29:58,726 INFO L78 Accepts]: Start accepts. Automaton has 23363 states and 34372 transitions. Word has length 890 [2024-11-09 01:29:58,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:58,728 INFO L471 AbstractCegarLoop]: Abstraction has 23363 states and 34372 transitions. [2024-11-09 01:29:58,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 3 states have call successors, (83), 3 states have call predecessors, (83), 2 states have return successors, (80), 3 states have call predecessors, (80), 2 states have call successors, (80) [2024-11-09 01:29:58,728 INFO L276 IsEmpty]: Start isEmpty. Operand 23363 states and 34372 transitions. [2024-11-09 01:29:58,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 892 [2024-11-09 01:29:58,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:58,747 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 61, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:29:58,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 01:29:58,747 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:29:58,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:58,748 INFO L85 PathProgramCache]: Analyzing trace with hash -903997516, now seen corresponding path program 1 times [2024-11-09 01:29:58,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:58,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114647901] [2024-11-09 01:29:58,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:58,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:30:16,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:30:17,681 INFO L134 CoverageAnalysis]: Checked inductivity of 18512 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 18511 trivial. 0 not checked. [2024-11-09 01:30:17,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:30:17,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114647901] [2024-11-09 01:30:17,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114647901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:30:17,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:30:17,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:30:17,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459069580] [2024-11-09 01:30:17,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:30:17,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:30:17,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:30:17,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:30:17,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:30:17,685 INFO L87 Difference]: Start difference. First operand 23363 states and 34372 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-09 01:30:19,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:22,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:25,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:27,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:33,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:34,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:36,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:38,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:41,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:30:43,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:30:46,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:49,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:51,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 01:30:54,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:30:55,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-09 01:30:56,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:30:56,435 INFO L93 Difference]: Finished difference Result 46636 states and 68637 transitions. [2024-11-09 01:30:56,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:30:56,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 891 [2024-11-09 01:30:56,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:30:56,565 INFO L225 Difference]: With dead ends: 46636 [2024-11-09 01:30:56,565 INFO L226 Difference]: Without dead ends: 23423 [2024-11-09 01:30:56,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:30:56,657 INFO L432 NwaCegarLoop]: 3124 mSDtfsCounter, 4 mSDsluCounter, 3123 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6247 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time [2024-11-09 01:30:56,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6247 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 734 Invalid, 10 Unknown, 0 Unchecked, 37.6s Time] [2024-11-09 01:30:56,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23423 states. [2024-11-09 01:30:58,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23423 to 23375. [2024-11-09 01:30:58,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23375 states, 16156 states have (on average 1.4095073037880663) internal successors, (22772), 16330 states have internal predecessors, (22772), 5802 states have call successors, (5802), 1426 states have call predecessors, (5802), 1416 states have return successors, (5810), 5771 states have call predecessors, (5810), 5798 states have call successors, (5810) [2024-11-09 01:30:58,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23375 states to 23375 states and 34384 transitions. [2024-11-09 01:30:58,320 INFO L78 Accepts]: Start accepts. Automaton has 23375 states and 34384 transitions. Word has length 891 [2024-11-09 01:30:58,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:30:58,321 INFO L471 AbstractCegarLoop]: Abstraction has 23375 states and 34384 transitions. [2024-11-09 01:30:58,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-09 01:30:58,321 INFO L276 IsEmpty]: Start isEmpty. Operand 23375 states and 34384 transitions. [2024-11-09 01:30:58,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 895 [2024-11-09 01:30:58,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:30:58,337 INFO L215 NwaCegarLoop]: trace histogram [61, 61, 61, 61, 61, 61, 61, 61, 61, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:30:58,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 01:30:58,338 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:30:58,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:30:58,338 INFO L85 PathProgramCache]: Analyzing trace with hash 930269884, now seen corresponding path program 1 times [2024-11-09 01:30:58,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:30:58,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608174413] [2024-11-09 01:30:58,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:30:58,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:31:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18513 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18511 trivial. 0 not checked. [2024-11-09 01:31:14,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:14,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608174413] [2024-11-09 01:31:14,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608174413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:31:14,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669325171] [2024-11-09 01:31:14,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:14,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:31:14,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:31:14,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:31:14,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef27a746-f5af-4a6e-a5b9-0bb7518b19df/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:31:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:33,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 11547 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:31:33,830 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 18513 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18511 trivial. 0 not checked. [2024-11-09 01:31:34,106 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:31:45,363 INFO L134 CoverageAnalysis]: Checked inductivity of 18513 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18511 trivial. 0 not checked. [2024-11-09 01:31:45,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669325171] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:31:45,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [699755270] [2024-11-09 01:31:45,395 INFO L159 IcfgInterpreter]: Started Sifa with 232 locations of interest [2024-11-09 01:31:45,395 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:31:45,399 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:31:45,405 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:31:45,406 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs