./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/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_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b4b366842d515e4cb882bee42d8cbade7db172d14c7b79b0aca4a9ee5dc85e7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:38:55,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:38:55,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 10:38:55,422 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:38:55,422 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:38:55,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:38:55,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:38:55,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:38:55,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:38:55,443 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:38:55,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 10:38:55,443 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 10:38:55,444 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:38:55,444 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:38:55,444 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:38:55,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:38:55,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 10:38:55,444 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:38:55,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:38:55,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:38:55,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:38:55,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 10:38:55,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 10:38:55,445 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 10:38:55,445 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 10:38:55,445 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:38:55,445 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:38:55,445 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:38:55,445 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:38:55,445 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:38:55,446 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 10:38:55,446 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:38:55,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:38:55,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:38:55,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:38:55,446 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:38:55,446 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:38:55,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 10:38:55,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 10:38:55,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:38:55,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:38:55,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 10:38:55,447 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 10:38:55,447 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 10:38:55,447 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 10:38:55,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 10:38:55,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 10:38:55,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 10:38:55,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 10:38:55,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 10:38:55,448 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_1ee3416c-dde5-42c6-8923-119a39c912b8/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 ! overflow) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b4b366842d515e4cb882bee42d8cbade7db172d14c7b79b0aca4a9ee5dc85e7 [2024-12-02 10:38:55,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:38:55,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:38:55,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:38:55,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:38:55,660 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:38:55,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-12-02 10:38:58,236 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/data/6febc9b30/5f3ff943dbd6479d8b153171d9ecafbb/FLAG161067f2e [2024-12-02 10:38:58,645 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:38:58,646 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-12-02 10:38:58,673 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/data/6febc9b30/5f3ff943dbd6479d8b153171d9ecafbb/FLAG161067f2e [2024-12-02 10:38:58,816 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/data/6febc9b30/5f3ff943dbd6479d8b153171d9ecafbb [2024-12-02 10:38:58,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:38:58,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:38:58,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:38:58,820 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:38:58,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:38:58,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:38:58" (1/1) ... [2024-12-02 10:38:58,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53bcc341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:38:58, skipping insertion in model container [2024-12-02 10:38:58,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:38:58" (1/1) ... [2024-12-02 10:38:58,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:39:00,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:39:00,121 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:39:00,179 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)); [3628-3629] [2024-12-02 10:39:00,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3662] [2024-12-02 10:39:00,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3665] [2024-12-02 10:39:00,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3668] [2024-12-02 10:39:00,181 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3671] [2024-12-02 10:39:00,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___12->state): : "memory", "cc"); [4769-4770] [2024-12-02 10:39:00,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___13->state): : "memory", "cc"); [4776-4777] [2024-12-02 10:39:00,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___14->state): : "memory", "cc"); [4783-4784] [2024-12-02 10:39:00,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___15->state): : "memory", "cc"); [4790-4791] [2024-12-02 10:39:00,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___17->state): : "memory", "cc"); [4837-4838] [2024-12-02 10:39:00,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___18->state): : "memory", "cc"); [4844-4845] [2024-12-02 10:39:00,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___19->state): : "memory", "cc"); [4851-4852] [2024-12-02 10:39:00,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___20->state): : "memory", "cc"); [4858-4859] [2024-12-02 10:39:00,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [5071-5072] [2024-12-02 10:39:00,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [5078-5079] [2024-12-02 10:39:00,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [5085-5086] [2024-12-02 10:39:00,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [5092-5093] [2024-12-02 10:39:00,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___0), "+m" (tmp___6->state): : "memory", "cc"); [5152-5153] [2024-12-02 10:39:00,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___0), "+m" (tmp___7->state): : "memory", "cc"); [5159-5160] [2024-12-02 10:39:00,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___0), "+m" (tmp___8->state): : "memory", "cc"); [5166-5167] [2024-12-02 10:39:00,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___0), "+m" (tmp___9->state): : "memory", "cc"); [5173-5174] [2024-12-02 10:39:00,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret___1), "+m" (tmp___15->state): : "memory", "cc"); [5263-5264] [2024-12-02 10:39:00,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret___1), "+m" (tmp___16->state): : "memory", "cc"); [5270-5271] [2024-12-02 10:39:00,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret___1), "+m" (tmp___17->state): : "memory", "cc"); [5277-5278] [2024-12-02 10:39:00,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret___1), "+m" (tmp___18->state): : "memory", "cc"); [5284-5285] [2024-12-02 10:39:00,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:39:00,371 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:39:00,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00 WrapperNode [2024-12-02 10:39:00,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:39:00,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:39:00,372 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:39:00,372 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:39:00,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:00,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:00,572 INFO L138 Inliner]: procedures = 289, calls = 1736, calls flagged for inlining = 468, calls inlined = 551, statements flattened = 6463 [2024-12-02 10:39:00,572 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:39:00,573 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:39:00,573 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:39:00,573 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:39:00,583 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:00,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:00,601 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:01,017 INFO L175 MemorySlicer]: Split 899 memory accesses to 31 slices as follows [14, 126, 10, 7, 1, 2, 28, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 7, 24, 416, 7, 7, 126, 4, 7, 14]. 46 percent of accesses are in the largest equivalence class. The 288 initializations are split as follows [14, 126, 0, 7, 1, 2, 0, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 7, 0, 7, 7, 7, 0, 4, 7, 0]. The 403 writes are split as follows [0, 0, 10, 0, 0, 0, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 24, 221, 0, 0, 108, 0, 0, 12]. [2024-12-02 10:39:01,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:01,017 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:01,110 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:01,117 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:01,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:01,152 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:01,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:01,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:39:01,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:39:01,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:39:01,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:39:01,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (1/1) ... [2024-12-02 10:39:01,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 10:39:01,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:39:01,248 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 10:39:01,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 10:39:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 10:39:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 10:39:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 10:39:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 10:39:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 10:39:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-12-02 10:39:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-12-02 10:39:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-12-02 10:39:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#22 [2024-12-02 10:39:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#23 [2024-12-02 10:39:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#24 [2024-12-02 10:39:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#25 [2024-12-02 10:39:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#26 [2024-12-02 10:39:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#27 [2024-12-02 10:39:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#28 [2024-12-02 10:39:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#29 [2024-12-02 10:39:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#30 [2024-12-02 10:39:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_insmod_4 [2024-12-02 10:39:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_insmod_4 [2024-12-02 10:39:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 10:39:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_scenario_3 [2024-12-02 10:39:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_scenario_3 [2024-12-02 10:39:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 10:39:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 10:39:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 10:39:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 10:39:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 10:39:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 10:39:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#27 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#28 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#29 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#30 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 10:39:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 10:39:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 10:39:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 10:39:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 10:39:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 10:39:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 10:39:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 10:39:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 10:39:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 10:39:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#27 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#28 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#29 [2024-12-02 10:39:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#30 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 10:39:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#22 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#23 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#24 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#25 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#26 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#27 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#28 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#29 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#30 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 10:39:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-12-02 10:39:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#29 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#30 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 10:39:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#29 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#30 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 10:39:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-12-02 10:39:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#27 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#28 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#29 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#30 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_character_driver_scenario_2 [2024-12-02 10:39:01,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_character_driver_scenario_2 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 10:39:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2024-12-02 10:39:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:39:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:39:01,288 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 10:39:01,883 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:39:01,885 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:39:06,922 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 10:39:06,922 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:39:13,408 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:39:13,409 INFO L312 CfgBuilder]: Removed 29 assume(true) statements. [2024-12-02 10:39:13,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:39:13 BoogieIcfgContainer [2024-12-02 10:39:13,409 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:39:13,411 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 10:39:13,411 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 10:39:13,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 10:39:13,415 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:38:58" (1/3) ... [2024-12-02 10:39:13,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d352039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:39:13, skipping insertion in model container [2024-12-02 10:39:13,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:00" (2/3) ... [2024-12-02 10:39:13,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d352039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:39:13, skipping insertion in model container [2024-12-02 10:39:13,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:39:13" (3/3) ... [2024-12-02 10:39:13,417 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-12-02 10:39:13,429 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 10:39:13,430 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14--drivers--usb--misc--adutux.ko.cil.i that has 4 procedures, 360 locations, 1 initial locations, 9 loop locations, and 60 error locations. [2024-12-02 10:39:13,431 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 10:39:14,305 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-12-02 10:39:14,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 375 places, 465 transitions, 963 flow [2024-12-02 10:39:14,816 INFO L124 PetriNetUnfolderBase]: 170/820 cut-off events. [2024-12-02 10:39:14,818 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-12-02 10:39:14,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 843 conditions, 820 events. 170/820 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4700 event pairs, 0 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 826. Up to 18 conditions per place. [2024-12-02 10:39:14,833 INFO L82 GeneralOperation]: Start removeDead. Operand has 375 places, 465 transitions, 963 flow [2024-12-02 10:39:14,847 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 366 places, 456 transitions, 936 flow [2024-12-02 10:39:14,854 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 10:39:14,864 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;@5ef859d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 10:39:14,864 INFO L334 AbstractCegarLoop]: Starting to check reachability of 125 error locations. [2024-12-02 10:39:14,940 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 10:39:14,940 INFO L124 PetriNetUnfolderBase]: 11/84 cut-off events. [2024-12-02 10:39:14,940 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-12-02 10:39:14,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:39:14,940 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:39:14,941 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_usb_scenario_3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 123 more)] === [2024-12-02 10:39:14,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:39:14,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1818388052, now seen corresponding path program 1 times [2024-12-02 10:39:14,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:39:14,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418251327] [2024-12-02 10:39:14,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:14,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:39:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:39:19,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:39:19,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:39:19,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418251327] [2024-12-02 10:39:19,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418251327] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:39:19,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:39:19,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:39:19,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346625481] [2024-12-02 10:39:19,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:39:19,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:39:19,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:39:19,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:39:19,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:39:19,963 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 467 [2024-12-02 10:39:19,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 456 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:39:19,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:39:19,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 467 [2024-12-02 10:39:19,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:39:24,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:39:28,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:39:38,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:40:43,878 INFO L124 PetriNetUnfolderBase]: 325886/498358 cut-off events. [2024-12-02 10:40:43,878 INFO L125 PetriNetUnfolderBase]: For 2245/2245 co-relation queries the response was YES. [2024-12-02 10:40:44,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927735 conditions, 498358 events. 325886/498358 cut-off events. For 2245/2245 co-relation queries the response was YES. Maximal size of possible extension queue 5981. Compared 4381329 event pairs, 140169 based on Foata normal form. 4062/395084 useless extension candidates. Maximal degree in co-relation 926180. Up to 262051 conditions per place. [2024-12-02 10:40:46,435 INFO L140 encePairwiseOnDemand]: 456/467 looper letters, 590 selfloop transitions, 3 changer transitions 0/731 dead transitions. [2024-12-02 10:40:46,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 731 transitions, 2684 flow [2024-12-02 10:40:46,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:40:46,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:40:46,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1033 transitions. [2024-12-02 10:40:46,453 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7373304782298359 [2024-12-02 10:40:46,455 INFO L175 Difference]: Start difference. First operand has 366 places, 456 transitions, 936 flow. Second operand 3 states and 1033 transitions. [2024-12-02 10:40:46,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 731 transitions, 2684 flow [2024-12-02 10:40:46,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 731 transitions, 2660 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-12-02 10:40:46,498 INFO L231 Difference]: Finished difference. Result has 362 places, 452 transitions, 929 flow [2024-12-02 10:40:46,502 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=450, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=447, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=929, PETRI_PLACES=362, PETRI_TRANSITIONS=452} [2024-12-02 10:40:46,505 INFO L279 CegarLoopForPetriNet]: 366 programPoint places, -4 predicate places. [2024-12-02 10:40:46,506 INFO L471 AbstractCegarLoop]: Abstraction has has 362 places, 452 transitions, 929 flow [2024-12-02 10:40:46,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:40:46,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:40:46,506 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:40:46,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 10:40:46,507 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_usb_scenario_3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 123 more)] === [2024-12-02 10:40:46,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:40:46,507 INFO L85 PathProgramCache]: Analyzing trace with hash -580240296, now seen corresponding path program 1 times [2024-12-02 10:40:46,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:40:46,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557177161] [2024-12-02 10:40:46,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:40:46,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:40:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:40:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:40:50,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:40:50,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557177161] [2024-12-02 10:40:50,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557177161] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:40:50,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:40:50,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:40:50,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934950731] [2024-12-02 10:40:50,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:40:50,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:40:50,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:40:50,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:40:50,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:40:50,235 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 467 [2024-12-02 10:40:50,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 452 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:40:50,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:40:50,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 467 [2024-12-02 10:40:50,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:40:54,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:40:58,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:41:07,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:41:29,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:42:20,420 INFO L124 PetriNetUnfolderBase]: 376471/541300 cut-off events. [2024-12-02 10:42:20,420 INFO L125 PetriNetUnfolderBase]: For 9451/11845 co-relation queries the response was YES. [2024-12-02 10:42:20,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1052696 conditions, 541300 events. 376471/541300 cut-off events. For 9451/11845 co-relation queries the response was YES. Maximal size of possible extension queue 6054. Compared 4313395 event pairs, 85208 based on Foata normal form. 15612/445748 useless extension candidates. Maximal degree in co-relation 464553. Up to 345258 conditions per place. [2024-12-02 10:42:22,500 INFO L140 encePairwiseOnDemand]: 459/467 looper letters, 550 selfloop transitions, 3 changer transitions 0/681 dead transitions. [2024-12-02 10:42:22,500 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 681 transitions, 2502 flow [2024-12-02 10:42:22,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:42:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:42:22,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 952 transitions. [2024-12-02 10:42:22,505 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6795146324054246 [2024-12-02 10:42:22,505 INFO L175 Difference]: Start difference. First operand has 362 places, 452 transitions, 929 flow. Second operand 3 states and 952 transitions. [2024-12-02 10:42:22,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 681 transitions, 2502 flow [2024-12-02 10:42:22,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 681 transitions, 2498 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:42:22,562 INFO L231 Difference]: Finished difference. Result has 358 places, 448 transitions, 935 flow [2024-12-02 10:42:22,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=355, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=443, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=935, PETRI_PLACES=358, PETRI_TRANSITIONS=448} [2024-12-02 10:42:22,563 INFO L279 CegarLoopForPetriNet]: 366 programPoint places, -8 predicate places. [2024-12-02 10:42:22,563 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 448 transitions, 935 flow [2024-12-02 10:42:22,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:42:22,563 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:42:22,563 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:42:22,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 10:42:22,563 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_usb_scenario_3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 123 more)] === [2024-12-02 10:42:22,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:42:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash -807562393, now seen corresponding path program 1 times [2024-12-02 10:42:22,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:42:22,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428121430] [2024-12-02 10:42:22,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:42:22,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:42:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:42:26,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:42:26,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:42:26,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428121430] [2024-12-02 10:42:26,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428121430] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:42:26,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:42:26,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 10:42:26,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68555211] [2024-12-02 10:42:26,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:42:26,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 10:42:26,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:42:26,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:42:26,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:42:26,590 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 467 [2024-12-02 10:42:26,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 448 transitions, 935 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:42:26,591 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:42:26,591 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 467 [2024-12-02 10:42:26,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:42:30,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:42:34,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:42:53,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:43:05,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:43:57,242 INFO L124 PetriNetUnfolderBase]: 335635/484852 cut-off events. [2024-12-02 10:43:57,242 INFO L125 PetriNetUnfolderBase]: For 21792/24186 co-relation queries the response was YES. [2024-12-02 10:43:57,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 946250 conditions, 484852 events. 335635/484852 cut-off events. For 21792/24186 co-relation queries the response was YES. Maximal size of possible extension queue 5422. Compared 3828950 event pairs, 85016 based on Foata normal form. 0/395806 useless extension candidates. Maximal degree in co-relation 419151. Up to 288810 conditions per place. [2024-12-02 10:43:58,938 INFO L140 encePairwiseOnDemand]: 459/467 looper letters, 544 selfloop transitions, 3 changer transitions 0/675 dead transitions. [2024-12-02 10:43:58,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 675 transitions, 2487 flow [2024-12-02 10:43:58,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:43:58,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 10:43:58,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 946 transitions. [2024-12-02 10:43:58,941 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.675231977159172 [2024-12-02 10:43:58,941 INFO L175 Difference]: Start difference. First operand has 358 places, 448 transitions, 935 flow. Second operand 3 states and 946 transitions. [2024-12-02 10:43:58,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 675 transitions, 2487 flow [2024-12-02 10:43:59,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 675 transitions, 2484 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:43:59,449 INFO L231 Difference]: Finished difference. Result has 353 places, 442 transitions, 926 flow [2024-12-02 10:43:59,450 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=920, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=439, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=926, PETRI_PLACES=353, PETRI_TRANSITIONS=442} [2024-12-02 10:43:59,451 INFO L279 CegarLoopForPetriNet]: 366 programPoint places, -13 predicate places. [2024-12-02 10:43:59,451 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 442 transitions, 926 flow [2024-12-02 10:43:59,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:43:59,451 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:43:59,451 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:43:59,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 10:43:59,451 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 123 more)] === [2024-12-02 10:43:59,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:43:59,452 INFO L85 PathProgramCache]: Analyzing trace with hash 328445359, now seen corresponding path program 1 times [2024-12-02 10:43:59,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:43:59,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868910623] [2024-12-02 10:43:59,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:43:59,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:44:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:44:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:44:03,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:44:03,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868910623] [2024-12-02 10:44:03,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868910623] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:44:03,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 10:44:03,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 10:44:03,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931383251] [2024-12-02 10:44:03,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:44:03,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:44:03,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:44:03,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:44:03,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 10:44:03,739 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 467 [2024-12-02 10:44:03,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 442 transitions, 926 flow. Second operand has 4 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:44:03,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:44:03,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 467 [2024-12-02 10:44:03,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:44:07,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:44:12,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:44:16,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:44:21,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:45:45,402 INFO L124 PetriNetUnfolderBase]: 343668/511888 cut-off events. [2024-12-02 10:45:45,402 INFO L125 PetriNetUnfolderBase]: For 34072/36506 co-relation queries the response was YES. [2024-12-02 10:45:45,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 985637 conditions, 511888 events. 343668/511888 cut-off events. For 34072/36506 co-relation queries the response was YES. Maximal size of possible extension queue 5809. Compared 4254024 event pairs, 236261 based on Foata normal form. 661/411674 useless extension candidates. Maximal degree in co-relation 437679. Up to 446447 conditions per place. [2024-12-02 10:45:47,265 INFO L140 encePairwiseOnDemand]: 437/467 looper letters, 455 selfloop transitions, 28 changer transitions 0/609 dead transitions. [2024-12-02 10:45:47,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 609 transitions, 2292 flow [2024-12-02 10:45:47,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:45:47,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:45:47,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1041 transitions. [2024-12-02 10:45:47,269 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5572805139186295 [2024-12-02 10:45:47,269 INFO L175 Difference]: Start difference. First operand has 353 places, 442 transitions, 926 flow. Second operand 4 states and 1041 transitions. [2024-12-02 10:45:47,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 609 transitions, 2292 flow [2024-12-02 10:45:47,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 609 transitions, 2274 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-12-02 10:45:47,828 INFO L231 Difference]: Finished difference. Result has 356 places, 469 transitions, 1119 flow [2024-12-02 10:45:47,829 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=920, PETRI_DIFFERENCE_MINUEND_PLACES=351, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1119, PETRI_PLACES=356, PETRI_TRANSITIONS=469} [2024-12-02 10:45:47,829 INFO L279 CegarLoopForPetriNet]: 366 programPoint places, -10 predicate places. [2024-12-02 10:45:47,830 INFO L471 AbstractCegarLoop]: Abstraction has has 356 places, 469 transitions, 1119 flow [2024-12-02 10:45:47,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 146.5) internal successors, (586), 4 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:47,830 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:45:47,830 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:45:47,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 10:45:47,830 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_usb_scenario_3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 123 more)] === [2024-12-02 10:45:47,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:45:47,831 INFO L85 PathProgramCache]: Analyzing trace with hash 765905130, now seen corresponding path program 1 times [2024-12-02 10:45:47,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:45:47,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909461465] [2024-12-02 10:45:47,831 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:47,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:45:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:52,412 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:52,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:45:52,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909461465] [2024-12-02 10:45:52,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909461465] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:45:52,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399704944] [2024-12-02 10:45:52,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:45:52,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:45:52,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:45:52,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:45:52,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:45:57,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:45:57,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 3633 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:45:57,484 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:45:57,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:45:57,763 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 10:45:57,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399704944] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 10:45:57,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 10:45:57,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-12-02 10:45:57,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178064327] [2024-12-02 10:45:57,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 10:45:57,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 10:45:57,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:45:57,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 10:45:57,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 10:45:57,827 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 467 [2024-12-02 10:45:57,828 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 356 places, 469 transitions, 1119 flow. Second operand has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:45:57,828 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:45:57,828 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 467 [2024-12-02 10:45:57,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:46:01,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:46:06,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:46:10,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:46:22,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:46:28,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:46:30,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:47:43,372 INFO L124 PetriNetUnfolderBase]: 347172/496998 cut-off events. [2024-12-02 10:47:43,372 INFO L125 PetriNetUnfolderBase]: For 33254/33566 co-relation queries the response was YES. [2024-12-02 10:47:44,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1040347 conditions, 496998 events. 347172/496998 cut-off events. For 33254/33566 co-relation queries the response was YES. Maximal size of possible extension queue 5365. Compared 3872567 event pairs, 54596 based on Foata normal form. 1317/442336 useless extension candidates. Maximal degree in co-relation 971540. Up to 182235 conditions per place. [2024-12-02 10:47:45,642 INFO L140 encePairwiseOnDemand]: 463/467 looper letters, 872 selfloop transitions, 7 changer transitions 0/1005 dead transitions. [2024-12-02 10:47:45,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 1005 transitions, 4094 flow [2024-12-02 10:47:45,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 10:47:45,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-12-02 10:47:45,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1394 transitions. [2024-12-02 10:47:45,645 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7462526766595289 [2024-12-02 10:47:45,645 INFO L175 Difference]: Start difference. First operand has 356 places, 469 transitions, 1119 flow. Second operand 4 states and 1394 transitions. [2024-12-02 10:47:45,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 1005 transitions, 4094 flow [2024-12-02 10:47:52,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 1005 transitions, 4042 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-12-02 10:47:52,929 INFO L231 Difference]: Finished difference. Result has 358 places, 469 transitions, 1113 flow [2024-12-02 10:47:52,930 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=467, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=354, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1113, PETRI_PLACES=358, PETRI_TRANSITIONS=469} [2024-12-02 10:47:52,930 INFO L279 CegarLoopForPetriNet]: 366 programPoint places, -8 predicate places. [2024-12-02 10:47:52,930 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 469 transitions, 1113 flow [2024-12-02 10:47:52,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 145.75) internal successors, (583), 4 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:47:52,931 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 10:47:52,931 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:47:52,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:47:53,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:47:53,132 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_usb_scenario_3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 123 more)] === [2024-12-02 10:47:53,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:47:53,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2026727153, now seen corresponding path program 1 times [2024-12-02 10:47:53,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 10:47:53,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206120256] [2024-12-02 10:47:53,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:47:53,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:47:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:47:57,270 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:47:57,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 10:47:57,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206120256] [2024-12-02 10:47:57,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206120256] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:47:57,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796099356] [2024-12-02 10:47:57,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:47:57,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:47:57,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:47:57,273 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:47:57,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ee3416c-dde5-42c6-8923-119a39c912b8/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:48:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:48:02,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 3634 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:48:02,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:48:02,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:48:02,445 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:48:02,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 10:48:02,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796099356] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:48:02,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:48:02,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-12-02 10:48:02,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455238717] [2024-12-02 10:48:02,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:48:02,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 10:48:02,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 10:48:02,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:48:02,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:48:02,888 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 467 [2024-12-02 10:48:02,890 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 469 transitions, 1113 flow. Second operand has 7 states, 7 states have (on average 145.28571428571428) internal successors, (1017), 7 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:48:02,890 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 10:48:02,890 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 467 [2024-12-02 10:48:02,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 10:48:06,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:48:11,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:48:15,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:48:19,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:48:23,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:48:28,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:48:33,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:48:47,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:48:56,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:48:57,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:49:08,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 10:49:32,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []