./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterReach.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_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b4b366842d515e4cb882bee42d8cbade7db172d14c7b79b0aca4a9ee5dc85e7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 11:21:41,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 11:21:41,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-11-23 11:21:41,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 11:21:41,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 11:21:41,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 11:21:41,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 11:21:41,476 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 11:21:41,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 11:21:41,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 11:21:41,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 11:21:41,479 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 11:21:41,479 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 11:21:41,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 11:21:41,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 11:21:41,479 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 11:21:41,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 11:21:41,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 11:21:41,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 11:21:41,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 11:21:41,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 11:21:41,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 11:21:41,480 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 11:21:41,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 11:21:41,480 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 11:21:41,480 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 11:21:41,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 11:21:41,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 11:21:41,480 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 11:21:41,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 11:21:41,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:21:41,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 11:21:41,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 11:21:41,481 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 11:21:41,481 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2024-11-23 11:21:41,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 11:21:41,481 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 11:21:41,483 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-11-23 11:21:41,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 11:21:41,483 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 11:21:41,483 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-11-23 11:21:41,483 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-11-23 11:21:41,483 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-11-23 11:21:41,483 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter 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 [2024-11-23 11:21:41,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 11:21:41,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 11:21:41,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 11:21:41,849 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 11:21:41,849 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 11:21:41,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-11-23 11:21:44,998 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/data/b3569d44c/e70287d0a8ee4799af2c0f46964c6b33/FLAG4c747da4e [2024-11-23 11:21:45,734 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 11:21:45,735 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-11-23 11:21:45,780 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/data/b3569d44c/e70287d0a8ee4799af2c0f46964c6b33/FLAG4c747da4e [2024-11-23 11:21:45,803 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/data/b3569d44c/e70287d0a8ee4799af2c0f46964c6b33 [2024-11-23 11:21:45,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 11:21:45,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 11:21:45,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 11:21:45,809 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 11:21:45,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 11:21:45,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:21:45" (1/1) ... [2024-11-23 11:21:45,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674a51d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:45, skipping insertion in model container [2024-11-23 11:21:45,819 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:21:45" (1/1) ... [2024-11-23 11:21:45,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 11:21:47,823 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i[196530,196543] [2024-11-23 11:21:48,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:21:48,113 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 11:21:48,227 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] [2024-11-23 11:21:48,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3662] [2024-11-23 11:21:48,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3665] [2024-11-23 11:21:48,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3668] [2024-11-23 11:21:48,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3671] [2024-11-23 11:21:48,355 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] [2024-11-23 11:21:48,356 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] [2024-11-23 11:21:48,357 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] [2024-11-23 11:21:48,358 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] [2024-11-23 11:21:48,359 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] [2024-11-23 11:21:48,359 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] [2024-11-23 11:21:48,360 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] [2024-11-23 11:21:48,360 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] [2024-11-23 11:21:48,378 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] [2024-11-23 11:21:48,380 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] [2024-11-23 11:21:48,380 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] [2024-11-23 11:21:48,380 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] [2024-11-23 11:21:48,384 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] [2024-11-23 11:21:48,385 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] [2024-11-23 11:21:48,386 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] [2024-11-23 11:21:48,387 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] [2024-11-23 11:21:48,393 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] [2024-11-23 11:21:48,394 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] [2024-11-23 11:21:48,394 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] [2024-11-23 11:21:48,394 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] [2024-11-23 11:21:48,495 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i[196530,196543] [2024-11-23 11:21:48,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 11:21:48,632 INFO L204 MainTranslator]: Completed translation [2024-11-23 11:21:48,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48 WrapperNode [2024-11-23 11:21:48,633 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 11:21:48,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 11:21:48,635 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 11:21:48,635 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 11:21:48,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:48,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:48,972 INFO L138 Inliner]: procedures = 289, calls = 1735, calls flagged for inlining = 467, calls inlined = 550, statements flattened = 6401 [2024-11-23 11:21:48,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 11:21:48,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 11:21:48,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 11:21:48,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 11:21:48,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:48,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:49,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:49,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:49,296 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:49,311 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:49,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:49,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:49,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:49,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 11:21:49,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 11:21:49,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 11:21:49,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 11:21:49,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (1/1) ... [2024-11-23 11:21:49,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-23 11:21:49,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:21:49,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-23 11:21:49,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-23 11:21:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-23 11:21:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_insmod_4 [2024-11-23 11:21:49,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_insmod_4 [2024-11-23 11:21:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 11:21:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_scenario_3 [2024-11-23 11:21:49,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_scenario_3 [2024-11-23 11:21:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-23 11:21:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 11:21:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-23 11:21:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-23 11:21:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-23 11:21:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-23 11:21:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-23 11:21:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-23 11:21:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 11:21:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 11:21:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-23 11:21:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_character_driver_scenario_2 [2024-11-23 11:21:49,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_character_driver_scenario_2 [2024-11-23 11:21:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-23 11:21:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 11:21:49,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 11:21:49,596 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 11:21:50,447 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 11:21:50,450 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 11:21:58,206 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 11:21:58,207 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 11:22:09,055 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 11:22:09,056 INFO L312 CfgBuilder]: Removed 29 assume(true) statements. [2024-11-23 11:22:09,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:09 BoogieIcfgContainer [2024-11-23 11:22:09,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 11:22:09,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 11:22:09,059 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 11:22:09,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 11:22:09,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:21:45" (1/3) ... [2024-11-23 11:22:09,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b7dd92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:09, skipping insertion in model container [2024-11-23 11:22:09,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:21:48" (2/3) ... [2024-11-23 11:22:09,070 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b7dd92b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:09, skipping insertion in model container [2024-11-23 11:22:09,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:09" (3/3) ... [2024-11-23 11:22:09,073 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-11-23 11:22:09,096 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 11:22:09,098 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14--drivers--usb--misc--adutux.ko.cil.i that has 4 procedures, 248 locations, 1 initial locations, 9 loop locations, and 1 error locations. [2024-11-23 11:22:09,098 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 11:22:10,101 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-23 11:22:10,181 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:22:10,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-11-23 11:22:10,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/z3 [2024-11-23 11:22:10,184 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-11-23 11:22:10,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29f06421-bbc0-4982-a41c-227964d9fea7/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-11-23 11:22:10,887 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-11-23 11:22:10,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ldv_character_driver_scenario_2Thread1of1ForFork0 ======== [2024-11-23 11:22:10,925 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=PARTIAL_ORDER_FA, 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;@a139e00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 11:22:10,925 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 11:26:13,578 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 11:26:13,578 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2024-11-23 11:26:13,579 INFO L139 ounterexampleChecker]: Examining path program with hash 157439370, occurence #1 [2024-11-23 11:26:13,579 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2024-11-23 11:26:13,579 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2024-11-23 11:26:13,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 11:26:13,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1889648971, now seen corresponding path program 1 times [2024-11-23 11:26:13,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 11:26:13,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942627928] [2024-11-23 11:26:13,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 11:26:13,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 11:26:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 11:26:19,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 11:26:19,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 11:26:19,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942627928] [2024-11-23 11:26:19,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942627928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 11:26:19,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 11:26:19,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 11:26:19,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061182584] [2024-11-23 11:26:19,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 11:26:19,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 11:26:19,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 11:26:19,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 11:26:19,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 11:26:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:26:19,822 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-11-23 11:26:19,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-11-23 11:26:19,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-11-23 11:26:21,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 11:26:24,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 11:32:13,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 11:34:06,983 WARN L214 Elim1Store]: Array PQE input equivalent to false