./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 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '5b4b366842d515e4cb882bee42d8cbade7db172d14c7b79b0aca4a9ee5dc85e7'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b4b366842d515e4cb882bee42d8cbade7db172d14c7b79b0aca4a9ee5dc85e7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:29:04,153 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:29:04,209 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:29:04,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:29:04,218 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:29:04,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:29:04,244 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:29:04,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:29:04,245 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:29:04,245 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:29:04,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:29:04,246 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:29:04,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:29:04,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:29:04,246 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:29:04,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:29:04,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:29:04,247 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:29:04,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:29:04,247 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:29:04,248 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:29:04,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:29:04,248 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:29:04,249 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:29:04,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:29:04,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:29:04,249 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b4b366842d515e4cb882bee42d8cbade7db172d14c7b79b0aca4a9ee5dc85e7 [2024-11-07 23:29:04,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:29:04,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:29:04,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:29:04,506 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:29:04,506 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:29:04,507 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-11-07 23:29:05,636 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:29:06,041 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:29:06,041 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-11-07 23:29:06,075 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f74d6014f/e381b2a4a6694e7eb6d84f7f4fb951d8/FLAG4d42498e2 [2024-11-07 23:29:06,091 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f74d6014f/e381b2a4a6694e7eb6d84f7f4fb951d8 [2024-11-07 23:29:06,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:29:06,095 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:29:06,097 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:29:06,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:29:06,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:29:06,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:29:06" (1/1) ... [2024-11-07 23:29:06,102 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7340fd2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:06, skipping insertion in model container [2024-11-07 23:29:06,102 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:29:06" (1/1) ... [2024-11-07 23:29:06,169 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:29:07,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:29:07,321 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:29:07,402 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] [2024-11-07 23:29:07,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3662] [2024-11-07 23:29:07,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3665] [2024-11-07 23:29:07,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3668] [2024-11-07 23:29:07,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3671] [2024-11-07 23:29:07,467 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] [2024-11-07 23:29:07,468 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] [2024-11-07 23:29:07,469 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] [2024-11-07 23:29:07,469 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] [2024-11-07 23:29:07,469 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] [2024-11-07 23:29:07,470 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] [2024-11-07 23:29:07,470 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] [2024-11-07 23:29:07,470 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] [2024-11-07 23:29:07,481 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] [2024-11-07 23:29:07,481 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] [2024-11-07 23:29:07,481 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] [2024-11-07 23:29:07,481 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] [2024-11-07 23:29:07,483 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] [2024-11-07 23:29:07,484 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] [2024-11-07 23:29:07,484 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] [2024-11-07 23:29:07,484 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] [2024-11-07 23:29:07,486 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] [2024-11-07 23:29:07,487 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] [2024-11-07 23:29:07,488 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] [2024-11-07 23:29:07,488 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] [2024-11-07 23:29:07,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:29:07,612 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:29:07,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07 WrapperNode [2024-11-07 23:29:07,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:29:07,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:29:07,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:29:07,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:29:07,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:07,661 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:07,851 INFO L138 Inliner]: procedures = 289, calls = 1736, calls flagged for inlining = 468, calls inlined = 551, statements flattened = 6667 [2024-11-07 23:29:07,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:29:07,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:29:07,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:29:07,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:29:07,861 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:07,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:07,885 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:08,222 INFO L175 MemorySlicer]: Split 899 memory accesses to 31 slices as follows [14, 126, 416, 126, 7, 1, 2, 7, 28, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 4, 7, 14, 7, 7, 24, 10, 7]. 46 percent of accesses are in the largest equivalence class. The 288 initializations are split as follows [14, 126, 7, 0, 7, 1, 2, 7, 0, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 4, 7, 0, 7, 7, 0, 0, 7]. The 403 writes are split as follows [0, 0, 221, 108, 0, 0, 0, 0, 28, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 0, 24, 10, 0]. [2024-11-07 23:29:08,226 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:08,227 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:08,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:08,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:08,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:08,450 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:08,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:29:08,491 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:29:08,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:29:08,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:29:08,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (1/1) ... [2024-11-07 23:29:08,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:29:08,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:29:08,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 23:29:08,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 23:29:08,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-07 23:29:08,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-07 23:29:08,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-07 23:29:08,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#22 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#23 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#24 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#25 [2024-11-07 23:29:08,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#26 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#27 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#28 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#29 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#30 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_insmod_4 [2024-11-07 23:29:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_insmod_4 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_scenario_3 [2024-11-07 23:29:08,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_scenario_3 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-11-07 23:29:08,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-11-07 23:29:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#27 [2024-11-07 23:29:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#28 [2024-11-07 23:29:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#29 [2024-11-07 23:29:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#30 [2024-11-07 23:29:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 23:29:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 23:29:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 23:29:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 23:29:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 23:29:08,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 23:29:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-07 23:29:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-07 23:29:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-07 23:29:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-07 23:29:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-07 23:29:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-11-07 23:29:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#27 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#28 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#29 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#30 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-07 23:29:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#22 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#23 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#24 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#25 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#26 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#27 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#28 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#29 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#30 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-07 23:29:08,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#29 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#30 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-07 23:29:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-07 23:29:08,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-07 23:29:08,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-07 23:29:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-11-07 23:29:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-11-07 23:29:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-11-07 23:29:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-11-07 23:29:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-11-07 23:29:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#29 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#30 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#27 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#28 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#29 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#30 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_character_driver_scenario_2 [2024-11-07 23:29:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_character_driver_scenario_2 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 23:29:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-07 23:29:08,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-07 23:29:08,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2024-11-07 23:29:08,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2024-11-07 23:29:08,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2024-11-07 23:29:08,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2024-11-07 23:29:08,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:29:08,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:29:08,576 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 23:29:09,129 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:29:09,130 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:29:13,383 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:29:13,384 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:29:19,067 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:29:19,067 INFO L316 CfgBuilder]: Removed 29 assume(true) statements. [2024-11-07 23:29:19,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:29:19 BoogieIcfgContainer [2024-11-07 23:29:19,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:29:19,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:29:19,072 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:29:19,076 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:29:19,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:29:06" (1/3) ... [2024-11-07 23:29:19,077 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb54217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:29:19, skipping insertion in model container [2024-11-07 23:29:19,077 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:07" (2/3) ... [2024-11-07 23:29:19,078 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb54217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:29:19, skipping insertion in model container [2024-11-07 23:29:19,078 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:29:19" (3/3) ... [2024-11-07 23:29:19,079 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14--drivers--usb--misc--adutux.ko.cil.i [2024-11-07 23:29:19,092 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:29:19,093 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2024-11-07 23:29:19,094 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:29:19,721 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2024-11-07 23:29:19,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 375 places, 465 transitions, 963 flow [2024-11-07 23:29:20,205 INFO L124 PetriNetUnfolderBase]: 170/820 cut-off events. [2024-11-07 23:29:20,207 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-07 23:29:20,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 843 conditions, 820 events. 170/820 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4700 event pairs, 0 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 826. Up to 18 conditions per place. [2024-11-07 23:29:20,222 INFO L82 GeneralOperation]: Start removeDead. Operand has 375 places, 465 transitions, 963 flow [2024-11-07 23:29:20,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 366 places, 456 transitions, 936 flow [2024-11-07 23:29:20,246 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:29:20,257 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3e01d551, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:29:20,257 INFO L334 AbstractCegarLoop]: Starting to check reachability of 125 error locations. [2024-11-07 23:29:20,396 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:29:20,396 INFO L124 PetriNetUnfolderBase]: 11/84 cut-off events. [2024-11-07 23:29:20,396 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-07 23:29:20,396 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:29:20,397 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:29:20,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_usb_scenario_3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 123 more)] === [2024-11-07 23:29:20,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:29:20,402 INFO L85 PathProgramCache]: Analyzing trace with hash 1705249620, now seen corresponding path program 1 times [2024-11-07 23:29:20,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:29:20,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126405768] [2024-11-07 23:29:20,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:29:20,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:29:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:29:24,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:29:24,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:29:24,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126405768] [2024-11-07 23:29:24,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126405768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:29:24,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:29:24,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:29:24,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782719165] [2024-11-07 23:29:24,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:29:24,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:29:24,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:29:24,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:29:24,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:29:24,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 467 [2024-11-07 23:29:24,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 456 transitions, 936 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:29:24,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:29:24,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 467 [2024-11-07 23:29:24,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:29:28,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 23:29:33,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-07 23:29:56,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []