./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-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f6def3055939e7924c556782ca9d4709018ae81be71dcf327652b82e5d7c7965 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:39:56,933 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:39:56,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 11:39:56,995 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:39:56,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:39:57,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:39:57,017 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:39:57,018 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:39:57,018 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:39:57,018 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:39:57,018 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:39:57,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:39:57,018 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:39:57,019 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:39:57,019 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:39:57,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:39:57,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:39:57,019 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:39:57,019 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:39:57,019 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:39:57,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:39:57,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:39:57,019 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:39:57,019 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:39:57,019 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:39:57,020 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:39:57,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:39:57,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:39:57,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:39:57,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:39:57,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:39:57,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:39:57,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:39:57,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:39:57,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:39:57,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:39:57,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:39:57,021 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:39:57,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:39:57,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:39:57,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:39:57,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:39:57,021 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:39:57,021 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:39:57,021 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:39:57,021 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6def3055939e7924c556782ca9d4709018ae81be71dcf327652b82e5d7c7965 [2024-12-02 11:39:57,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:39:57,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:39:57,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:39:57,282 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:39:57,282 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:39:57,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2024-12-02 11:39:59,928 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/data/59cf411af/c33adb43e6544189805c3e28e5140f1e/FLAGdb444d813 [2024-12-02 11:40:00,346 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:40:00,347 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2024-12-02 11:40:00,375 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/data/59cf411af/c33adb43e6544189805c3e28e5140f1e/FLAGdb444d813 [2024-12-02 11:40:00,391 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/data/59cf411af/c33adb43e6544189805c3e28e5140f1e [2024-12-02 11:40:00,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:40:00,395 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:40:00,397 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:40:00,397 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:40:00,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:40:00,402 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:40:00" (1/1) ... [2024-12-02 11:40:00,403 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa2a347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:00, skipping insertion in model container [2024-12-02 11:40:00,403 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:40:00" (1/1) ... [2024-12-02 11:40:00,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:40:01,382 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_61ee988d-36b2-464a-9bc4-a32533b40c9f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225448,225461] [2024-12-02 11:40:01,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:40:01,452 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:40:01,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6012] [2024-12-02 11:40:01,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6014] [2024-12-02 11:40:01,592 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"); [6024] [2024-12-02 11:40:01,592 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [6031] [2024-12-02 11:40:01,593 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; btc %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [6038] [2024-12-02 11:40:01,594 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)); [6052-6053] [2024-12-02 11:40:01,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [6060] [2024-12-02 11:40:01,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6089] [2024-12-02 11:40:01,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6092] [2024-12-02 11:40:01,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6095] [2024-12-02 11:40:01,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6098] [2024-12-02 11:40:01,597 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; addl %1,%0": "+m" (v->counter): "ir" (i)); [6113] [2024-12-02 11:40:01,598 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; incl %0": "+m" (v->counter)); [6120] [2024-12-02 11:40:01,598 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [6128-6129] [2024-12-02 11:40:01,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/atmdev.h"), "i" (271), "i" (12UL)); [6402-6403] [2024-12-02 11:40:01,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6468] [2024-12-02 11:40:01,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6490] [2024-12-02 11:40:01,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [6503-6504] [2024-12-02 11:40:01,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [6508-6509] [2024-12-02 11:40:01,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___6->state): : "memory", "cc"); [6513-6514] [2024-12-02 11:40:01,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___7->state): : "memory", "cc"); [6518-6519] [2024-12-02 11:40:01,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___10->state): : "memory", "cc"); [6539-6540] [2024-12-02 11:40:01,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___11->state): : "memory", "cc"); [6544-6545] [2024-12-02 11:40:01,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___12->state): : "memory", "cc"); [6549-6550] [2024-12-02 11:40:01,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___13->state): : "memory", "cc"); [6554-6555] [2024-12-02 11:40:01,700 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_61ee988d-36b2-464a-9bc4-a32533b40c9f/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225448,225461] [2024-12-02 11:40:01,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:40:01,763 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:40:01,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01 WrapperNode [2024-12-02 11:40:01,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:40:01,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:40:01,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:40:01,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:40:01,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:01,801 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:01,901 INFO L138 Inliner]: procedures = 142, calls = 1108, calls flagged for inlining = 59, calls inlined = 58, statements flattened = 2557 [2024-12-02 11:40:01,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:40:01,903 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:40:01,903 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:40:01,903 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:40:01,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:01,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:01,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:02,120 INFO L175 MemorySlicer]: Split 830 memory accesses to 15 slices as follows [2, 5, 1, 4, 2, 11, 7, 4, 4, 12, 110, 2, 1, 650, 15]. 78 percent of accesses are in the largest equivalence class. The 25 initializations are split as follows [2, 0, 1, 4, 0, 0, 7, 4, 0, 0, 0, 0, 0, 7, 0]. The 529 writes are split as follows [0, 5, 0, 0, 0, 3, 0, 0, 1, 2, 52, 1, 0, 450, 15]. [2024-12-02 11:40:02,120 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:02,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:02,206 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:02,211 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:02,223 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:02,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:02,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:02,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:40:02,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:40:02,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:40:02,275 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:40:02,276 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (1/1) ... [2024-12-02 11:40:02,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:40:02,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:40:02,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:40:02,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:40:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2024-12-02 11:40:02,331 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2024-12-02 11:40:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2024-12-02 11:40:02,331 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2024-12-02 11:40:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 11:40:02,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 11:40:02,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 11:40:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2024-12-02 11:40:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2024-12-02 11:40:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2024-12-02 11:40:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2024-12-02 11:40:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-12-02 11:40:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-12-02 11:40:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2024-12-02 11:40:02,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __xchg_wrong_size [2024-12-02 11:40:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 11:40:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 11:40:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 11:40:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 11:40:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 11:40:02,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 11:40:02,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 11:40:02,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 11:40:02,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:40:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:40:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:40:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:40:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:40:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 11:40:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 11:40:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 11:40:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 11:40:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 11:40:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 11:40:02,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 11:40:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 11:40:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 11:40:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 11:40:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 11:40:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 11:40:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2024-12-02 11:40:02,337 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2024-12-02 11:40:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 11:40:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 11:40:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 11:40:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 11:40:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 11:40:02,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 11:40:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 11:40:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 11:40:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-12-02 11:40:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-12-02 11:40:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-12-02 11:40:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-12-02 11:40:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-12-02 11:40:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2024-12-02 11:40:02,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2024-12-02 11:40:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 11:40:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 11:40:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 11:40:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 11:40:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 11:40:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 11:40:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 11:40:02,338 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 11:40:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-12-02 11:40:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-12-02 11:40:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-12-02 11:40:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-12-02 11:40:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-12-02 11:40:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2024-12-02 11:40:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2024-12-02 11:40:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-12-02 11:40:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-12-02 11:40:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 11:40:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 11:40:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2024-12-02 11:40:02,339 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2024-12-02 11:40:02,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2024-12-02 11:40:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2024-12-02 11:40:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 11:40:02,340 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 11:40:02,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 11:40:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 11:40:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-12-02 11:40:02,341 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 11:40:02,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 11:40:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 11:40:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 11:40:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 11:40:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-02 11:40:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-12-02 11:40:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-12-02 11:40:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-12-02 11:40:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-12-02 11:40:02,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-12-02 11:40:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 11:40:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 11:40:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 11:40:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 11:40:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 11:40:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 11:40:02,342 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-12-02 11:40:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2024-12-02 11:40:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-12-02 11:40:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:40:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 11:40:02,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-12-02 11:40:02,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-12-02 11:40:02,344 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2024-12-02 11:40:02,344 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2024-12-02 11:40:02,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:40:02,344 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2024-12-02 11:40:02,344 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2024-12-02 11:40:02,345 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-12-02 11:40:02,345 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 11:40:02,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 11:40:02,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-12-02 11:40:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2024-12-02 11:40:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2024-12-02 11:40:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2024-12-02 11:40:02,347 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 11:40:02,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 11:40:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 11:40:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 11:40:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 11:40:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 11:40:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 11:40:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 11:40:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2024-12-02 11:40:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2024-12-02 11:40:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-12-02 11:40:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-12-02 11:40:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2024-12-02 11:40:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2024-12-02 11:40:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-12-02 11:40:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-12-02 11:40:02,348 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2024-12-02 11:40:02,348 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-12-02 11:40:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2024-12-02 11:40:02,349 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2024-12-02 11:40:02,349 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-12-02 11:40:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2024-12-02 11:40:02,350 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-02 11:40:02,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-12-02 11:40:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2024-12-02 11:40:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2024-12-02 11:40:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:40:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:40:02,351 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2024-12-02 11:40:02,351 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2024-12-02 11:40:02,882 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:40:02,884 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:40:03,617 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 11:40:26,006 INFO L? ?]: Removed 1187 outVars from TransFormulas that were not future-live. [2024-12-02 11:40:26,006 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:40:26,029 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:40:26,029 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 11:40:26,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:40:26 BoogieIcfgContainer [2024-12-02 11:40:26,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:40:26,032 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:40:26,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:40:26,036 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:40:26,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:40:00" (1/3) ... [2024-12-02 11:40:26,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a969faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:40:26, skipping insertion in model container [2024-12-02 11:40:26,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:40:01" (2/3) ... [2024-12-02 11:40:26,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a969faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:40:26, skipping insertion in model container [2024-12-02 11:40:26,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:40:26" (3/3) ... [2024-12-02 11:40:26,039 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2024-12-02 11:40:26,052 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:40:26,054 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i that has 72 procedures, 786 locations, 1 initial locations, 47 loop locations, and 1 error locations. [2024-12-02 11:40:26,117 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:40:26,128 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@141bdc79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:40:26,128 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:40:26,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 667 states, 479 states have (on average 1.3402922755741127) internal successors, (642), 499 states have internal predecessors, (642), 142 states have call successors, (142), 45 states have call predecessors, (142), 44 states have return successors, (137), 134 states have call predecessors, (137), 137 states have call successors, (137) [2024-12-02 11:40:26,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 11:40:26,145 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:26,146 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:40:26,146 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:26,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:26,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1392625932, now seen corresponding path program 1 times [2024-12-02 11:40:26,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:26,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429037026] [2024-12-02 11:40:26,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:26,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:32,087 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-12-02 11:40:32,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:32,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429037026] [2024-12-02 11:40:32,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429037026] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:40:32,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433884381] [2024-12-02 11:40:32,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:32,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:32,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:40:32,094 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:40:32,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:40:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:37,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 3661 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:40:37,837 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:40:37,854 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-12-02 11:40:37,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:40:37,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433884381] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:37,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:40:37,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:40:37,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401598862] [2024-12-02 11:40:37,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:37,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:40:37,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:37,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:40:37,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:40:37,886 INFO L87 Difference]: Start difference. First operand has 667 states, 479 states have (on average 1.3402922755741127) internal successors, (642), 499 states have internal predecessors, (642), 142 states have call successors, (142), 45 states have call predecessors, (142), 44 states have return successors, (137), 134 states have call predecessors, (137), 137 states have call successors, (137) Second operand has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:40:37,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:37,969 INFO L93 Difference]: Finished difference Result 1329 states and 1875 transitions. [2024-12-02 11:40:37,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:40:37,970 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 133 [2024-12-02 11:40:37,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:37,983 INFO L225 Difference]: With dead ends: 1329 [2024-12-02 11:40:37,983 INFO L226 Difference]: Without dead ends: 653 [2024-12-02 11:40:37,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:40:37,991 INFO L435 NwaCegarLoop]: 916 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:37,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:40:38,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-12-02 11:40:38,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 653. [2024-12-02 11:40:38,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 653 states, 472 states have (on average 1.3241525423728813) internal successors, (625), 485 states have internal predecessors, (625), 137 states have call successors, (137), 44 states have call predecessors, (137), 43 states have return successors, (135), 132 states have call predecessors, (135), 135 states have call successors, (135) [2024-12-02 11:40:38,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 897 transitions. [2024-12-02 11:40:38,086 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 897 transitions. Word has length 133 [2024-12-02 11:40:38,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:38,087 INFO L471 AbstractCegarLoop]: Abstraction has 653 states and 897 transitions. [2024-12-02 11:40:38,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:40:38,087 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 897 transitions. [2024-12-02 11:40:38,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 11:40:38,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:38,091 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:40:38,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:40:38,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:38,291 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:38,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:38,292 INFO L85 PathProgramCache]: Analyzing trace with hash -2129870208, now seen corresponding path program 1 times [2024-12-02 11:40:38,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:38,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039350945] [2024-12-02 11:40:38,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:38,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:43,901 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-12-02 11:40:43,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:43,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039350945] [2024-12-02 11:40:43,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039350945] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:43,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:43,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:40:43,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632054843] [2024-12-02 11:40:43,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:43,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:40:43,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:43,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:40:43,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:40:43,905 INFO L87 Difference]: Start difference. First operand 653 states and 897 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 11:40:48,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:40:48,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:48,630 INFO L93 Difference]: Finished difference Result 1895 states and 2610 transitions. [2024-12-02 11:40:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:40:48,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 133 [2024-12-02 11:40:48,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:48,641 INFO L225 Difference]: With dead ends: 1895 [2024-12-02 11:40:48,641 INFO L226 Difference]: Without dead ends: 1270 [2024-12-02 11:40:48,643 INFO L434 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 [2024-12-02 11:40:48,644 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 846 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:48,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1793 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 11:40:48,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-12-02 11:40:48,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1267. [2024-12-02 11:40:48,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 919 states have (on average 1.3275299238302503) internal successors, (1220), 944 states have internal predecessors, (1220), 263 states have call successors, (263), 85 states have call predecessors, (263), 84 states have return successors, (261), 255 states have call predecessors, (261), 261 states have call successors, (261) [2024-12-02 11:40:48,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1744 transitions. [2024-12-02 11:40:48,724 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1744 transitions. Word has length 133 [2024-12-02 11:40:48,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:48,725 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 1744 transitions. [2024-12-02 11:40:48,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 11:40:48,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1744 transitions. [2024-12-02 11:40:48,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-12-02 11:40:48,728 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:48,729 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:40:48,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:40:48,729 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:48,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:48,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1936024014, now seen corresponding path program 1 times [2024-12-02 11:40:48,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:48,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841968249] [2024-12-02 11:40:48,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:48,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:54,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:54,818 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-12-02 11:40:54,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:54,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841968249] [2024-12-02 11:40:54,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841968249] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:54,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:40:54,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:40:54,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898497843] [2024-12-02 11:40:54,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:54,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:40:54,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:54,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:40:54,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:40:54,821 INFO L87 Difference]: Start difference. First operand 1267 states and 1744 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 11:40:55,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:55,093 INFO L93 Difference]: Finished difference Result 2505 states and 3450 transitions. [2024-12-02 11:40:55,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:40:55,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 136 [2024-12-02 11:40:55,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:55,100 INFO L225 Difference]: With dead ends: 2505 [2024-12-02 11:40:55,100 INFO L226 Difference]: Without dead ends: 1266 [2024-12-02 11:40:55,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:40:55,104 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 892 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:55,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 1782 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:40:55,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-12-02 11:40:55,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1266. [2024-12-02 11:40:55,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 918 states have (on average 1.3246187363834423) internal successors, (1216), 943 states have internal predecessors, (1216), 263 states have call successors, (263), 85 states have call predecessors, (263), 84 states have return successors, (261), 255 states have call predecessors, (261), 261 states have call successors, (261) [2024-12-02 11:40:55,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1740 transitions. [2024-12-02 11:40:55,185 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1740 transitions. Word has length 136 [2024-12-02 11:40:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:55,185 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1740 transitions. [2024-12-02 11:40:55,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-12-02 11:40:55,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1740 transitions. [2024-12-02 11:40:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-12-02 11:40:55,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:55,188 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:40:55,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:40:55,189 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:55,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:55,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1019252043, now seen corresponding path program 1 times [2024-12-02 11:40:55,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:55,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857214378] [2024-12-02 11:40:55,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:55,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:00,005 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-12-02 11:41:00,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:00,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857214378] [2024-12-02 11:41:00,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857214378] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:00,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:00,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:41:00,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450315027] [2024-12-02 11:41:00,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:00,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:41:00,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:00,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:41:00,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:00,008 INFO L87 Difference]: Start difference. First operand 1266 states and 1740 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:41:00,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:00,163 INFO L93 Difference]: Finished difference Result 3739 states and 5159 transitions. [2024-12-02 11:41:00,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:00,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 144 [2024-12-02 11:41:00,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:00,177 INFO L225 Difference]: With dead ends: 3739 [2024-12-02 11:41:00,177 INFO L226 Difference]: Without dead ends: 2497 [2024-12-02 11:41:00,181 INFO L434 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 [2024-12-02 11:41:00,182 INFO L435 NwaCegarLoop]: 895 mSDtfsCounter, 855 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:00,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1749 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:00,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2497 states. [2024-12-02 11:41:00,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2497 to 2493. [2024-12-02 11:41:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2493 states, 1811 states have (on average 1.326891220320265) internal successors, (2403), 1860 states have internal predecessors, (2403), 515 states have call successors, (515), 167 states have call predecessors, (515), 166 states have return successors, (513), 501 states have call predecessors, (513), 513 states have call successors, (513) [2024-12-02 11:41:00,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2493 states to 2493 states and 3431 transitions. [2024-12-02 11:41:00,271 INFO L78 Accepts]: Start accepts. Automaton has 2493 states and 3431 transitions. Word has length 144 [2024-12-02 11:41:00,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:00,272 INFO L471 AbstractCegarLoop]: Abstraction has 2493 states and 3431 transitions. [2024-12-02 11:41:00,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 11:41:00,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2493 states and 3431 transitions. [2024-12-02 11:41:00,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 11:41:00,275 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:00,275 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:41:00,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:41:00,275 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:00,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:00,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1039559356, now seen corresponding path program 1 times [2024-12-02 11:41:00,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:00,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175451107] [2024-12-02 11:41:00,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:00,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:04,948 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-12-02 11:41:04,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:04,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175451107] [2024-12-02 11:41:04,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175451107] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:04,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:04,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:41:04,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882079043] [2024-12-02 11:41:04,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:04,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:41:04,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:04,950 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:41:04,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:04,950 INFO L87 Difference]: Start difference. First operand 2493 states and 3431 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:41:05,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:05,102 INFO L93 Difference]: Finished difference Result 4554 states and 6246 transitions. [2024-12-02 11:41:05,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:05,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 150 [2024-12-02 11:41:05,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:05,112 INFO L225 Difference]: With dead ends: 4554 [2024-12-02 11:41:05,112 INFO L226 Difference]: Without dead ends: 2089 [2024-12-02 11:41:05,119 INFO L434 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 [2024-12-02 11:41:05,120 INFO L435 NwaCegarLoop]: 748 mSDtfsCounter, 742 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:05,120 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 748 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:05,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2024-12-02 11:41:05,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2024-12-02 11:41:05,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2089 states, 1527 states have (on average 1.3274394237066143) internal successors, (2027), 1564 states have internal predecessors, (2027), 411 states have call successors, (411), 151 states have call predecessors, (411), 150 states have return successors, (409), 401 states have call predecessors, (409), 409 states have call successors, (409) [2024-12-02 11:41:05,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2847 transitions. [2024-12-02 11:41:05,195 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2847 transitions. Word has length 150 [2024-12-02 11:41:05,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:05,195 INFO L471 AbstractCegarLoop]: Abstraction has 2089 states and 2847 transitions. [2024-12-02 11:41:05,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 11:41:05,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2847 transitions. [2024-12-02 11:41:05,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-12-02 11:41:05,199 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:05,200 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:41:05,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:41:05,200 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:05,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:05,200 INFO L85 PathProgramCache]: Analyzing trace with hash 753214535, now seen corresponding path program 1 times [2024-12-02 11:41:05,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:05,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185671232] [2024-12-02 11:41:05,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:05,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:09,900 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-12-02 11:41:09,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:09,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185671232] [2024-12-02 11:41:09,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185671232] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:09,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:09,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:41:09,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438231125] [2024-12-02 11:41:09,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:09,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:41:09,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:09,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:41:09,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:41:09,902 INFO L87 Difference]: Start difference. First operand 2089 states and 2847 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:41:10,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:10,114 INFO L93 Difference]: Finished difference Result 4252 states and 5799 transitions. [2024-12-02 11:41:10,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:41:10,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 177 [2024-12-02 11:41:10,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:10,125 INFO L225 Difference]: With dead ends: 4252 [2024-12-02 11:41:10,125 INFO L226 Difference]: Without dead ends: 2191 [2024-12-02 11:41:10,131 INFO L434 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 [2024-12-02 11:41:10,131 INFO L435 NwaCegarLoop]: 784 mSDtfsCounter, 555 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:10,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1491 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:41:10,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2024-12-02 11:41:10,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 2178. [2024-12-02 11:41:10,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2178 states, 1589 states have (on average 1.3360604153555695) internal successors, (2123), 1629 states have internal predecessors, (2123), 426 states have call successors, (426), 163 states have call predecessors, (426), 162 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2024-12-02 11:41:10,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2178 states to 2178 states and 2973 transitions. [2024-12-02 11:41:10,261 INFO L78 Accepts]: Start accepts. Automaton has 2178 states and 2973 transitions. Word has length 177 [2024-12-02 11:41:10,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:10,262 INFO L471 AbstractCegarLoop]: Abstraction has 2178 states and 2973 transitions. [2024-12-02 11:41:10,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:41:10,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2178 states and 2973 transitions. [2024-12-02 11:41:10,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-12-02 11:41:10,265 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:10,266 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2024-12-02 11:41:10,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:41:10,266 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:10,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:10,266 INFO L85 PathProgramCache]: Analyzing trace with hash -326503834, now seen corresponding path program 1 times [2024-12-02 11:41:10,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:10,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301358971] [2024-12-02 11:41:10,267 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:10,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-12-02 11:41:15,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:15,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301358971] [2024-12-02 11:41:15,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301358971] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:15,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:15,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:15,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765216842] [2024-12-02 11:41:15,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:15,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:15,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:15,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:15,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:15,832 INFO L87 Difference]: Start difference. First operand 2178 states and 2973 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:41:16,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:16,254 INFO L93 Difference]: Finished difference Result 3957 states and 5406 transitions. [2024-12-02 11:41:16,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:41:16,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 178 [2024-12-02 11:41:16,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:16,274 INFO L225 Difference]: With dead ends: 3957 [2024-12-02 11:41:16,274 INFO L226 Difference]: Without dead ends: 2184 [2024-12-02 11:41:16,282 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:16,283 INFO L435 NwaCegarLoop]: 747 mSDtfsCounter, 1 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:16,283 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2230 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:41:16,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2024-12-02 11:41:16,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2182. [2024-12-02 11:41:16,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 1593 states have (on average 1.335216572504708) internal successors, (2127), 1633 states have internal predecessors, (2127), 426 states have call successors, (426), 163 states have call predecessors, (426), 162 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2024-12-02 11:41:16,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2977 transitions. [2024-12-02 11:41:16,453 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 2977 transitions. Word has length 178 [2024-12-02 11:41:16,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:16,454 INFO L471 AbstractCegarLoop]: Abstraction has 2182 states and 2977 transitions. [2024-12-02 11:41:16,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:41:16,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 2977 transitions. [2024-12-02 11:41:16,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-12-02 11:41:16,461 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:16,462 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2024-12-02 11:41:16,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:41:16,462 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:16,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:16,468 INFO L85 PathProgramCache]: Analyzing trace with hash -910737859, now seen corresponding path program 1 times [2024-12-02 11:41:16,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:16,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762523957] [2024-12-02 11:41:16,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:16,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:22,883 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-12-02 11:41:22,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:22,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762523957] [2024-12-02 11:41:22,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762523957] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:22,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:22,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:22,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592865017] [2024-12-02 11:41:22,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:22,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:22,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:22,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:22,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:22,885 INFO L87 Difference]: Start difference. First operand 2182 states and 2977 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:41:23,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:23,129 INFO L93 Difference]: Finished difference Result 3965 states and 5414 transitions. [2024-12-02 11:41:23,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:41:23,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 179 [2024-12-02 11:41:23,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:23,141 INFO L225 Difference]: With dead ends: 3965 [2024-12-02 11:41:23,141 INFO L226 Difference]: Without dead ends: 2188 [2024-12-02 11:41:23,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:23,146 INFO L435 NwaCegarLoop]: 747 mSDtfsCounter, 1 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:23,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2230 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:41:23,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2024-12-02 11:41:23,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2182. [2024-12-02 11:41:23,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 1593 states have (on average 1.335216572504708) internal successors, (2127), 1633 states have internal predecessors, (2127), 426 states have call successors, (426), 163 states have call predecessors, (426), 162 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2024-12-02 11:41:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2977 transitions. [2024-12-02 11:41:23,220 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 2977 transitions. Word has length 179 [2024-12-02 11:41:23,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:23,220 INFO L471 AbstractCegarLoop]: Abstraction has 2182 states and 2977 transitions. [2024-12-02 11:41:23,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 11:41:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 2977 transitions. [2024-12-02 11:41:23,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-12-02 11:41:23,224 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:23,225 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:41:23,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:41:23,225 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:23,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:23,225 INFO L85 PathProgramCache]: Analyzing trace with hash -552850798, now seen corresponding path program 1 times [2024-12-02 11:41:23,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:23,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109842193] [2024-12-02 11:41:23,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:23,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-12-02 11:41:30,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:30,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109842193] [2024-12-02 11:41:30,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109842193] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:30,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:30,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:41:30,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755240105] [2024-12-02 11:41:30,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:30,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:41:30,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:30,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:41:30,410 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:41:30,410 INFO L87 Difference]: Start difference. First operand 2182 states and 2977 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:41:30,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:30,896 INFO L93 Difference]: Finished difference Result 3965 states and 5416 transitions. [2024-12-02 11:41:30,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:41:30,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 188 [2024-12-02 11:41:30,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:30,910 INFO L225 Difference]: With dead ends: 3965 [2024-12-02 11:41:30,910 INFO L226 Difference]: Without dead ends: 2188 [2024-12-02 11:41:30,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:41:30,916 INFO L435 NwaCegarLoop]: 746 mSDtfsCounter, 3 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:30,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2217 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:41:30,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2024-12-02 11:41:31,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2186. [2024-12-02 11:41:31,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 1597 states have (on average 1.3343769567939887) internal successors, (2131), 1637 states have internal predecessors, (2131), 426 states have call successors, (426), 163 states have call predecessors, (426), 162 states have return successors, (424), 420 states have call predecessors, (424), 424 states have call successors, (424) [2024-12-02 11:41:31,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 2981 transitions. [2024-12-02 11:41:31,026 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 2981 transitions. Word has length 188 [2024-12-02 11:41:31,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:31,026 INFO L471 AbstractCegarLoop]: Abstraction has 2186 states and 2981 transitions. [2024-12-02 11:41:31,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-12-02 11:41:31,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 2981 transitions. [2024-12-02 11:41:31,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 11:41:31,032 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:31,032 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 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] [2024-12-02 11:41:31,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:41:31,032 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:31,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:31,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1385171127, now seen corresponding path program 1 times [2024-12-02 11:41:31,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:31,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714447381] [2024-12-02 11:41:31,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:31,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:36,555 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-12-02 11:41:36,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:36,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714447381] [2024-12-02 11:41:36,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714447381] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:36,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:36,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:41:36,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106771963] [2024-12-02 11:41:36,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:36,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:41:36,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:36,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:41:36,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:41:36,557 INFO L87 Difference]: Start difference. First operand 2186 states and 2981 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 11:41:37,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:37,076 INFO L93 Difference]: Finished difference Result 3981 states and 5434 transitions. [2024-12-02 11:41:37,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:41:37,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 185 [2024-12-02 11:41:37,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:37,089 INFO L225 Difference]: With dead ends: 3981 [2024-12-02 11:41:37,089 INFO L226 Difference]: Without dead ends: 2200 [2024-12-02 11:41:37,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:41:37,093 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 1 mSDsluCounter, 3709 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4454 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:37,093 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4454 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:41:37,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2200 states. [2024-12-02 11:41:37,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2200 to 2194. [2024-12-02 11:41:37,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 1603 states have (on average 1.3331253898939488) internal successors, (2137), 1643 states have internal predecessors, (2137), 426 states have call successors, (426), 163 states have call predecessors, (426), 164 states have return successors, (428), 422 states have call predecessors, (428), 424 states have call successors, (428) [2024-12-02 11:41:37,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 2991 transitions. [2024-12-02 11:41:37,161 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 2991 transitions. Word has length 185 [2024-12-02 11:41:37,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:37,161 INFO L471 AbstractCegarLoop]: Abstraction has 2194 states and 2991 transitions. [2024-12-02 11:41:37,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 11:41:37,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 2991 transitions. [2024-12-02 11:41:37,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 11:41:37,166 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:37,166 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:41:37,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 11:41:37,166 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:37,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:37,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1581813819, now seen corresponding path program 1 times [2024-12-02 11:41:37,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:37,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607232065] [2024-12-02 11:41:37,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:37,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:43,878 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-12-02 11:41:43,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:43,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607232065] [2024-12-02 11:41:43,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607232065] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:43,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:43,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 11:41:43,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016960065] [2024-12-02 11:41:43,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:43,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:41:43,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:43,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:41:43,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:41:43,881 INFO L87 Difference]: Start difference. First operand 2194 states and 2991 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:44,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:44,335 INFO L93 Difference]: Finished difference Result 4003 states and 5474 transitions. [2024-12-02 11:41:44,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:41:44,335 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 198 [2024-12-02 11:41:44,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:44,351 INFO L225 Difference]: With dead ends: 4003 [2024-12-02 11:41:44,351 INFO L226 Difference]: Without dead ends: 2214 [2024-12-02 11:41:44,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 11:41:44,358 INFO L435 NwaCegarLoop]: 746 mSDtfsCounter, 0 mSDsluCounter, 3720 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4466 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:44,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4466 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:41:44,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2214 states. [2024-12-02 11:41:44,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2214 to 2208. [2024-12-02 11:41:44,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1613 states have (on average 1.3310601363918164) internal successors, (2147), 1653 states have internal predecessors, (2147), 426 states have call successors, (426), 163 states have call predecessors, (426), 168 states have return successors, (444), 426 states have call predecessors, (444), 424 states have call successors, (444) [2024-12-02 11:41:44,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3017 transitions. [2024-12-02 11:41:44,484 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3017 transitions. Word has length 198 [2024-12-02 11:41:44,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:44,485 INFO L471 AbstractCegarLoop]: Abstraction has 2208 states and 3017 transitions. [2024-12-02 11:41:44,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:44,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3017 transitions. [2024-12-02 11:41:44,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-02 11:41:44,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:44,492 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:41:44,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:41:44,492 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:44,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:44,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1168515337, now seen corresponding path program 1 times [2024-12-02 11:41:44,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:44,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841398256] [2024-12-02 11:41:44,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:44,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:53,413 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-12-02 11:41:53,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:53,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841398256] [2024-12-02 11:41:53,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841398256] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:41:53,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:41:53,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 11:41:53,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209583152] [2024-12-02 11:41:53,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:41:53,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:41:53,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:53,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:41:53,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:41:53,416 INFO L87 Difference]: Start difference. First operand 2208 states and 3017 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:54,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:54,332 INFO L93 Difference]: Finished difference Result 4025 states and 5512 transitions. [2024-12-02 11:41:54,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:41:54,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 198 [2024-12-02 11:41:54,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:54,343 INFO L225 Difference]: With dead ends: 4025 [2024-12-02 11:41:54,343 INFO L226 Difference]: Without dead ends: 2222 [2024-12-02 11:41:54,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:41:54,348 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 4 mSDsluCounter, 4445 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5190 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:54,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5190 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:41:54,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2024-12-02 11:41:54,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2210. [2024-12-02 11:41:54,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2210 states, 1615 states have (on average 1.3306501547987617) internal successors, (2149), 1653 states have internal predecessors, (2149), 426 states have call successors, (426), 163 states have call predecessors, (426), 168 states have return successors, (444), 428 states have call predecessors, (444), 424 states have call successors, (444) [2024-12-02 11:41:54,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2210 states to 2210 states and 3019 transitions. [2024-12-02 11:41:54,455 INFO L78 Accepts]: Start accepts. Automaton has 2210 states and 3019 transitions. Word has length 198 [2024-12-02 11:41:54,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:54,455 INFO L471 AbstractCegarLoop]: Abstraction has 2210 states and 3019 transitions. [2024-12-02 11:41:54,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 6 states have internal predecessors, (86), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:41:54,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2210 states and 3019 transitions. [2024-12-02 11:41:54,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-12-02 11:41:54,462 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:54,462 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:41:54,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 11:41:54,463 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:54,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:54,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1214999542, now seen corresponding path program 1 times [2024-12-02 11:41:54,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:54,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385133505] [2024-12-02 11:41:54,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:54,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:00,897 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2024-12-02 11:42:00,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:42:00,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385133505] [2024-12-02 11:42:00,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385133505] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:42:00,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780839670] [2024-12-02 11:42:00,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:00,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:42:00,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:42:00,900 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:42:00,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:42:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:45,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 4109 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 11:42:45,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:42:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-12-02 11:42:46,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:42:46,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780839670] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:42:46,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:42:46,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2024-12-02 11:42:46,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842933963] [2024-12-02 11:42:46,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:42:46,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:42:46,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:42:46,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:42:46,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:42:46,418 INFO L87 Difference]: Start difference. First operand 2210 states and 3019 transitions. Second operand has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 11:42:47,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:42:47,013 INFO L93 Difference]: Finished difference Result 4400 states and 6013 transitions. [2024-12-02 11:42:47,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:42:47,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 204 [2024-12-02 11:42:47,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:42:47,032 INFO L225 Difference]: With dead ends: 4400 [2024-12-02 11:42:47,032 INFO L226 Difference]: Without dead ends: 2211 [2024-12-02 11:42:47,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:42:47,041 INFO L435 NwaCegarLoop]: 744 mSDtfsCounter, 4 mSDsluCounter, 2966 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:42:47,041 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3710 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:42:47,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2024-12-02 11:42:47,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2211. [2024-12-02 11:42:47,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 1616 states have (on average 1.3304455445544554) internal successors, (2150), 1654 states have internal predecessors, (2150), 426 states have call successors, (426), 163 states have call predecessors, (426), 168 states have return successors, (444), 428 states have call predecessors, (444), 424 states have call successors, (444) [2024-12-02 11:42:47,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 3020 transitions. [2024-12-02 11:42:47,164 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 3020 transitions. Word has length 204 [2024-12-02 11:42:47,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:42:47,165 INFO L471 AbstractCegarLoop]: Abstraction has 2211 states and 3020 transitions. [2024-12-02 11:42:47,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-12-02 11:42:47,165 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 3020 transitions. [2024-12-02 11:42:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-12-02 11:42:47,172 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:42:47,173 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:42:47,373 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forcibly destroying the process [2024-12-02 11:42:47,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 137 [2024-12-02 11:42:47,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:42:47,515 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:42:47,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:42:47,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1680927084, now seen corresponding path program 1 times [2024-12-02 11:42:47,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:42:47,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748411616] [2024-12-02 11:42:47,515 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:47,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:42:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:42:55,697 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 11:42:55,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:42:55,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748411616] [2024-12-02 11:42:55,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748411616] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:42:55,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017427011] [2024-12-02 11:42:55,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:42:55,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:42:55,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:42:55,700 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:42:55,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:44:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:44:30,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 4202 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 11:44:30,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:44:31,624 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 34 proven. 1 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2024-12-02 11:44:31,624 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:44:36,093 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2024-12-02 11:44:36,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017427011] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:44:36,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:44:36,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2024-12-02 11:44:36,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216547608] [2024-12-02 11:44:36,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:44:36,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 11:44:36,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:44:36,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 11:44:36,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:44:36,096 INFO L87 Difference]: Start difference. First operand 2211 states and 3020 transitions. Second operand has 14 states, 12 states have (on average 10.5) internal successors, (126), 14 states have internal predecessors, (126), 4 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-02 11:44:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:44:38,149 INFO L93 Difference]: Finished difference Result 4413 states and 6028 transitions. [2024-12-02 11:44:38,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 11:44:38,150 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 10.5) internal successors, (126), 14 states have internal predecessors, (126), 4 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 207 [2024-12-02 11:44:38,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:44:38,161 INFO L225 Difference]: With dead ends: 4413 [2024-12-02 11:44:38,161 INFO L226 Difference]: Without dead ends: 2223 [2024-12-02 11:44:38,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 406 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:44:38,169 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 15 mSDsluCounter, 3717 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4462 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:44:38,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4462 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-12-02 11:44:38,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2024-12-02 11:44:38,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2223. [2024-12-02 11:44:38,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2223 states, 1625 states have (on average 1.3292307692307692) internal successors, (2160), 1663 states have internal predecessors, (2160), 427 states have call successors, (427), 165 states have call predecessors, (427), 170 states have return successors, (445), 429 states have call predecessors, (445), 425 states have call successors, (445) [2024-12-02 11:44:38,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 3032 transitions. [2024-12-02 11:44:38,293 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 3032 transitions. Word has length 207 [2024-12-02 11:44:38,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:44:38,294 INFO L471 AbstractCegarLoop]: Abstraction has 2223 states and 3032 transitions. [2024-12-02 11:44:38,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 10.5) internal successors, (126), 14 states have internal predecessors, (126), 4 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-02 11:44:38,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 3032 transitions. [2024-12-02 11:44:38,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-12-02 11:44:38,300 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:44:38,300 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 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] [2024-12-02 11:44:38,501 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forcibly destroying the process [2024-12-02 11:44:38,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 137 [2024-12-02 11:44:38,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:44:38,612 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:44:38,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:44:38,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1983472202, now seen corresponding path program 1 times [2024-12-02 11:44:38,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:44:38,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968385203] [2024-12-02 11:44:38,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:44:38,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:44:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:44:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 11:44:46,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:44:46,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968385203] [2024-12-02 11:44:46,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968385203] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:44:46,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380730342] [2024-12-02 11:44:46,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:44:46,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:44:46,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:44:46,970 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:44:46,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 11:48:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:14,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 4169 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 11:48:14,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:48:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-12-02 11:48:15,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:48:21,097 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-12-02 11:48:21,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380730342] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:48:21,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:48:21,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-12-02 11:48:21,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790901238] [2024-12-02 11:48:21,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:48:21,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-12-02 11:48:21,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:48:21,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 11:48:21,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-12-02 11:48:21,101 INFO L87 Difference]: Start difference. First operand 2223 states and 3032 transitions. Second operand has 17 states, 15 states have (on average 8.6) internal successors, (129), 17 states have internal predecessors, (129), 4 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-02 11:48:23,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:48:23,936 INFO L93 Difference]: Finished difference Result 4421 states and 6034 transitions. [2024-12-02 11:48:23,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 11:48:23,937 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 8.6) internal successors, (129), 17 states have internal predecessors, (129), 4 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 208 [2024-12-02 11:48:23,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:48:23,949 INFO L225 Difference]: With dead ends: 4421 [2024-12-02 11:48:23,949 INFO L226 Difference]: Without dead ends: 2225 [2024-12-02 11:48:23,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2024-12-02 11:48:23,955 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 17 mSDsluCounter, 5197 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 5942 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:48:23,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 5942 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-12-02 11:48:23,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2024-12-02 11:48:24,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 2225. [2024-12-02 11:48:24,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 1627 states have (on average 1.3288260602335586) internal successors, (2162), 1665 states have internal predecessors, (2162), 427 states have call successors, (427), 165 states have call predecessors, (427), 170 states have return successors, (445), 429 states have call predecessors, (445), 425 states have call successors, (445) [2024-12-02 11:48:24,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 3034 transitions. [2024-12-02 11:48:24,030 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 3034 transitions. Word has length 208 [2024-12-02 11:48:24,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:48:24,030 INFO L471 AbstractCegarLoop]: Abstraction has 2225 states and 3034 transitions. [2024-12-02 11:48:24,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 8.6) internal successors, (129), 17 states have internal predecessors, (129), 4 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-02 11:48:24,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 3034 transitions. [2024-12-02 11:48:24,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-12-02 11:48:24,034 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:48:24,034 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:48:24,234 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forcibly destroying the process [2024-12-02 11:48:24,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 137 [2024-12-02 11:48:24,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:48:24,352 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:48:24,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:48:24,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1233605836, now seen corresponding path program 1 times [2024-12-02 11:48:24,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:48:24,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639456437] [2024-12-02 11:48:24,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:24,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:48:30,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:48:32,993 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-12-02 11:48:32,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:48:32,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639456437] [2024-12-02 11:48:32,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639456437] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:48:32,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270310394] [2024-12-02 11:48:32,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:48:32,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:48:32,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:48:32,997 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:48:32,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 11:49:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:49:40,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 4248 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 11:49:40,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:49:41,797 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2024-12-02 11:49:41,797 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:49:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-12-02 11:49:47,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270310394] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:49:47,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:49:47,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-12-02 11:49:47,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568909855] [2024-12-02 11:49:47,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:49:47,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 11:49:47,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:49:47,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 11:49:47,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:49:47,707 INFO L87 Difference]: Start difference. First operand 2225 states and 3034 transitions. Second operand has 20 states, 18 states have (on average 7.333333333333333) internal successors, (132), 20 states have internal predecessors, (132), 4 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-02 11:49:51,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:49:51,377 INFO L93 Difference]: Finished difference Result 4424 states and 6037 transitions. [2024-12-02 11:49:51,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 11:49:51,378 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 7.333333333333333) internal successors, (132), 20 states have internal predecessors, (132), 4 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 210 [2024-12-02 11:49:51,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:49:51,393 INFO L225 Difference]: With dead ends: 4424 [2024-12-02 11:49:51,393 INFO L226 Difference]: Without dead ends: 2227 [2024-12-02 11:49:51,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 408 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2024-12-02 11:49:51,400 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 18 mSDsluCounter, 6684 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 7429 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:49:51,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 7429 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-02 11:49:51,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2024-12-02 11:49:51,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2227. [2024-12-02 11:49:51,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2227 states, 1629 states have (on average 1.3284223449969306) internal successors, (2164), 1667 states have internal predecessors, (2164), 427 states have call successors, (427), 165 states have call predecessors, (427), 170 states have return successors, (445), 429 states have call predecessors, (445), 425 states have call successors, (445) [2024-12-02 11:49:51,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2227 states to 2227 states and 3036 transitions. [2024-12-02 11:49:51,474 INFO L78 Accepts]: Start accepts. Automaton has 2227 states and 3036 transitions. Word has length 210 [2024-12-02 11:49:51,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:49:51,474 INFO L471 AbstractCegarLoop]: Abstraction has 2227 states and 3036 transitions. [2024-12-02 11:49:51,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 7.333333333333333) internal successors, (132), 20 states have internal predecessors, (132), 4 states have call successors, (32), 2 states have call predecessors, (32), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2024-12-02 11:49:51,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2227 states and 3036 transitions. [2024-12-02 11:49:51,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-12-02 11:49:51,477 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:49:51,478 INFO L218 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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] [2024-12-02 11:49:51,678 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2024-12-02 11:49:51,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2024-12-02 11:49:51,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 11:49:51,781 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:49:51,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:49:51,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1643975036, now seen corresponding path program 2 times [2024-12-02 11:49:51,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:49:51,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894620010] [2024-12-02 11:49:51,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 11:49:51,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:49:57,943 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 11:49:57,943 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 11:50:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-12-02 11:50:00,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:50:00,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894620010] [2024-12-02 11:50:00,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894620010] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:50:00,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453124068] [2024-12-02 11:50:00,838 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 11:50:00,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:50:00,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:50:00,841 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:50:00,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61ee988d-36b2-464a-9bc4-a32533b40c9f/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process