./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_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/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_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b4b366842d515e4cb882bee42d8cbade7db172d14c7b79b0aca4a9ee5dc85e7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 09:38:00,752 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 09:38:00,806 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2024-12-05 09:38:00,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 09:38:00,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-05 09:38:00,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 09:38:00,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-05 09:38:00,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-05 09:38:00,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 09:38:00,830 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-05 09:38:00,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 09:38:00,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 09:38:00,830 INFO L153 SettingsManager]: * Use SBE=true [2024-12-05 09:38:00,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 09:38:00,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 09:38:00,831 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 09:38:00,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 09:38:00,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 09:38:00,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 09:38:00,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 09:38:00,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 09:38:00,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 09:38:00,831 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 09:38:00,831 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 09:38:00,831 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 09:38:00,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 09:38:00,832 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 09:38:00,832 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 09:38:00,832 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 09:38:00,832 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-05 09:38:00,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-05 09:38:00,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-05 09:38:00,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:38:00,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 09:38:00,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 09:38:00,833 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-05 09:38:00,833 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 09:38:00,833 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-05 09:38:00,833 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-12-05 09:38:00,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 09:38:00,833 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-05 09:38:00,833 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2024-12-05 09:38:00,833 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-12-05 09:38:00,833 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-12-05 09:38:00,833 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-12-05 09:38:00,833 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_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX 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 -> 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 [2024-12-05 09:38:01,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 09:38:01,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 09:38:01,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 09:38:01,040 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 09:38:01,040 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 09:38:01,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/../../sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-12-05 09:38:03,632 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/data/756c67cbc/9c64fe426780485c8c6a228e0610e82d/FLAGa38710aa8 [2024-12-05 09:38:04,067 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 09:38:04,067 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-12-05 09:38:04,104 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/data/756c67cbc/9c64fe426780485c8c6a228e0610e82d/FLAGa38710aa8 [2024-12-05 09:38:04,195 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/data/756c67cbc/9c64fe426780485c8c6a228e0610e82d [2024-12-05 09:38:04,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 09:38:04,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 09:38:04,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 09:38:04,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 09:38:04,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 09:38:04,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:38:04" (1/1) ... [2024-12-05 09:38:04,206 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ded1679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:04, skipping insertion in model container [2024-12-05 09:38:04,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:38:04" (1/1) ... [2024-12-05 09:38:04,282 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 09:38:05,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:38:05,524 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 09:38:05,596 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] [2024-12-05 09:38:05,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3662] [2024-12-05 09:38:05,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3665] [2024-12-05 09:38:05,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3668] [2024-12-05 09:38:05,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3671] [2024-12-05 09:38:05,675 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] [2024-12-05 09:38:05,676 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] [2024-12-05 09:38:05,676 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] [2024-12-05 09:38:05,676 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] [2024-12-05 09:38:05,677 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] [2024-12-05 09:38:05,677 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] [2024-12-05 09:38:05,678 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] [2024-12-05 09:38:05,678 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] [2024-12-05 09:38:05,685 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] [2024-12-05 09:38:05,685 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] [2024-12-05 09:38:05,686 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] [2024-12-05 09:38:05,686 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] [2024-12-05 09:38:05,688 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] [2024-12-05 09:38:05,688 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] [2024-12-05 09:38:05,688 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] [2024-12-05 09:38:05,688 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] [2024-12-05 09:38:05,690 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] [2024-12-05 09:38:05,691 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] [2024-12-05 09:38:05,691 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] [2024-12-05 09:38:05,691 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] [2024-12-05 09:38:05,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 09:38:05,789 INFO L204 MainTranslator]: Completed translation [2024-12-05 09:38:05,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05 WrapperNode [2024-12-05 09:38:05,790 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 09:38:05,790 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 09:38:05,791 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 09:38:05,791 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 09:38:05,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:05,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:06,014 INFO L138 Inliner]: procedures = 289, calls = 1736, calls flagged for inlining = 468, calls inlined = 551, statements flattened = 6463 [2024-12-05 09:38:06,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 09:38:06,014 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 09:38:06,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 09:38:06,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 09:38:06,022 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:06,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:06,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:06,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:06,122 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:06,131 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:06,147 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:06,160 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:06,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:06,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 09:38:06,220 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 09:38:06,220 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 09:38:06,220 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 09:38:06,221 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (1/1) ... [2024-12-05 09:38:06,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-12-05 09:38:06,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:38:06,249 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-12-05 09:38:06,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_insmod_4 [2024-12-05 09:38:06,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_insmod_4 [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_scenario_3 [2024-12-05 09:38:06,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_scenario_3 [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 09:38:06,274 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-05 09:38:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 09:38:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 09:38:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-05 09:38:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_character_driver_scenario_2 [2024-12-05 09:38:06,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_character_driver_scenario_2 [2024-12-05 09:38:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 09:38:06,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 09:38:06,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 09:38:06,279 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-05 09:38:06,722 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 09:38:06,724 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 09:38:11,543 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-05 09:38:11,544 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 09:38:17,882 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 09:38:17,883 INFO L312 CfgBuilder]: Removed 29 assume(true) statements. [2024-12-05 09:38:17,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:38:17 BoogieIcfgContainer [2024-12-05 09:38:17,883 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 09:38:17,885 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-05 09:38:17,885 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-05 09:38:17,888 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-05 09:38:17,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 09:38:04" (1/3) ... [2024-12-05 09:38:17,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d1d97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:38:17, skipping insertion in model container [2024-12-05 09:38:17,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:38:05" (2/3) ... [2024-12-05 09:38:17,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d1d97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 09:38:17, skipping insertion in model container [2024-12-05 09:38:17,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:38:17" (3/3) ... [2024-12-05 09:38:17,890 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-12-05 09:38:17,901 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-05 09:38:17,904 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. [2024-12-05 09:38:17,904 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-05 09:38:18,664 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-12-05 09:38:18,710 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:38:18,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-12-05 09:38:18,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/z3 [2024-12-05 09:38:18,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-12-05 09:38:18,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f0401aa-f3c9-486c-b6f6-405236761985/bin/ugemcutter-verify-L2ppAeDwQX/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-12-05 09:38:19,247 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-12-05 09:38:19,258 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ldv_character_driver_scenario_2Thread1of1ForFork2 ======== [2024-12-05 09:38:19,265 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;@5392a607, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-05 09:38:19,265 INFO L334 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2024-12-05 09:38:19,537 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-12-05 09:38:19,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 334 treesize of output 294 [2024-12-05 09:38:22,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2024-12-05 09:38:22,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-12-05 09:38:22,843 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2024-12-05 09:38:22,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-12-05 09:38:22,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-05 09:38:22,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2024-12-05 09:38:22,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-12-05 09:38:23,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2024-12-05 09:38:23,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-12-05 09:38:23,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-12-05 09:38:23,130 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-12-05 09:38:23,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 281 treesize of output 233 [2024-12-05 09:38:23,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-05 09:38:23,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:23,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,085 INFO L224 Elim1Store]: Index analysis took 157 ms [2024-12-05 09:38:24,096 INFO L349 Elim1Store]: treesize reduction 184, result has 0.5 percent of original size [2024-12-05 09:38:24,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 154 treesize of output 124 [2024-12-05 09:38:24,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2024-12-05 09:38:24,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-05 09:38:24,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2024-12-05 09:38:24,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-05 09:38:24,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-12-05 09:38:24,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-05 09:38:24,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:24,989 INFO L224 Elim1Store]: Index analysis took 220 ms [2024-12-05 09:38:25,001 INFO L349 Elim1Store]: treesize reduction 376, result has 0.3 percent of original size [2024-12-05 09:38:25,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 30 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 46 case distinctions, treesize of input 265 treesize of output 229 [2024-12-05 09:38:25,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-12-05 09:38:25,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-05 09:38:25,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 11 [2024-12-05 09:38:25,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-05 09:38:25,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-12-05 09:38:25,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-05 09:38:25,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2024-12-05 09:38:25,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 09:38:25,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 13 [2024-12-05 09:38:25,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2024-12-05 09:38:25,331 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 09:38:25,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 13 [2024-12-05 09:38:25,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2024-12-05 09:38:25,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 09:38:25,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 13 [2024-12-05 09:38:25,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-12-05 09:38:25,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2024-12-05 09:38:25,462 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 09:38:25,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 13 [2024-12-05 09:38:25,482 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_character_driver_scenario_2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-12-05 09:38:25,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:25,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1960953304, now seen corresponding path program 1 times [2024-12-05 09:38:25,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:38:25,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320417440] [2024-12-05 09:38:25,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:25,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:38:30,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:38:30,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320417440] [2024-12-05 09:38:30,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320417440] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:38:30,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:38:30,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 09:38:30,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126691521] [2024-12-05 09:38:30,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:38:30,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-05 09:38:30,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:38:30,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-05 09:38:30,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-05 09:38:30,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:30,694 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:38:30,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-12-05 09:38:30,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:32,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-05 09:38:34,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-05 09:38:37,169 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-05 09:38:38,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:38,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-05 09:38:38,541 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_character_driver_scenario_2Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2024-12-05 09:38:38,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 09:38:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1778792984, now seen corresponding path program 1 times [2024-12-05 09:38:38,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-05 09:38:38,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151503236] [2024-12-05 09:38:38,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-05 09:38:38,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 09:38:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 09:38:42,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 09:38:42,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-05 09:38:42,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151503236] [2024-12-05 09:38:42,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151503236] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-05 09:38:42,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-05 09:38:42,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-05 09:38:42,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515215136] [2024-12-05 09:38:42,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-05 09:38:42,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-05 09:38:42,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-05 09:38:42,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-05 09:38:42,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-05 09:38:42,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:42,880 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-12-05 09:38:42,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-12-05 09:38:42,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-12-05 09:38:42,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-12-05 09:38:44,958 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 [] [2024-12-05 09:38:47,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-05 09:38:49,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-05 09:38:49,555 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-12-05 09:38:49,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 179 treesize of output 155 [2024-12-05 09:38:49,982 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2024-12-05 09:38:49,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 179 treesize of output 155 [2024-12-05 09:38:50,562 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2024-12-05 09:38:50,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 19 [2024-12-05 09:38:50,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 1 [2024-12-05 09:38:51,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 60 [2024-12-05 09:38:51,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2024-12-05 09:38:51,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-12-05 09:38:51,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2024-12-05 09:38:51,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2024-12-05 09:38:52,511 INFO L173 IndexEqualityManager]: detected equality via solver [2024-12-05 09:38:52,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-12-05 09:38:52,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17619 treesize of output 17308 [2024-12-05 09:38:55,753 INFO L349 Elim1Store]: treesize reduction 732, result has 13.5 percent of original size [2024-12-05 09:38:55,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 2703 treesize of output 2860 [2024-12-05 09:38:56,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:56,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:56,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:56,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-05 09:38:56,747 INFO L349 Elim1Store]: treesize reduction 331, result has 7.0 percent of original size [2024-12-05 09:38:56,747 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 62 [2024-12-05 09:39:15,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input -6340927477003171992 treesize of output -6340927477104246936