/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 19:38:56,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 19:38:56,264 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 19:38:56,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 19:38:56,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 19:38:56,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 19:38:56,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 19:38:56,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 19:38:56,284 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 19:38:56,284 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 19:38:56,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 19:38:56,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 19:38:56,284 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 19:38:56,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 19:38:56,284 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 19:38:56,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 19:38:56,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 19:38:56,284 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 19:38:56,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 19:38:56,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 19:38:56,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 19:38:56,285 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:38:56,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:38:56,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:38:56,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 19:38:56,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 19:38:56,286 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 19:38:56,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 19:38:56,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 19:38:56,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 19:38:56,286 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 19:38:56,286 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 19:38:56,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 19:38:56,286 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> PETRI_NET [2025-04-13 19:38:56,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 19:38:56,528 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 19:38:56,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 19:38:56,530 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 19:38:56,530 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 19:38:56,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2025-04-13 19:38:57,836 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c018a85b3/263ba32d68c6498e9f3d5c20831d5af4/FLAGcf06fd78a [2025-04-13 19:38:58,330 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 19:38:58,331 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2025-04-13 19:38:58,369 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c018a85b3/263ba32d68c6498e9f3d5c20831d5af4/FLAGcf06fd78a [2025-04-13 19:38:58,836 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c018a85b3/263ba32d68c6498e9f3d5c20831d5af4 [2025-04-13 19:38:58,838 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 19:38:58,839 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 19:38:58,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 19:38:58,840 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 19:38:58,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 19:38:58,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:38:58" (1/1) ... [2025-04-13 19:38:58,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a33ab49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:38:58, skipping insertion in model container [2025-04-13 19:38:58,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:38:58" (1/1) ... [2025-04-13 19:38:58,917 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 19:38:59,206 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i[5520,5533] [2025-04-13 19:39:03,578 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 19:39:03,579 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 19:39:03,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:39:03,664 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 19:39:03,685 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i[5520,5533] [2025-04-13 19:39:03,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-13 19:39:03,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-13 19:39:03,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-13 19:39:03,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-13 19:39:03,849 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-04-13 19:39:03,922 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 19:39:03,923 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 19:39:03,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:39:04,244 INFO L204 MainTranslator]: Completed translation [2025-04-13 19:39:04,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04 WrapperNode [2025-04-13 19:39:04,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 19:39:04,245 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 19:39:04,245 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 19:39:04,245 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 19:39:04,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,379 INFO L138 Inliner]: procedures = 1392, calls = 1531, calls flagged for inlining = 397, calls inlined = 72, statements flattened = 813 [2025-04-13 19:39:04,379 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 19:39:04,380 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 19:39:04,380 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 19:39:04,380 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 19:39:04,387 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,393 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,431 INFO L175 MemorySlicer]: Split 69 memory accesses to 10 slices as follows [2, 1, 5, 4, 7, 9, 10, 25, 4, 2]. 36 percent of accesses are in the largest equivalence class. The 50 initializations are split as follows [2, 1, 2, 0, 4, 4, 8, 25, 4, 0]. The 8 writes are split as follows [0, 0, 2, 1, 2, 0, 1, 0, 0, 2]. [2025-04-13 19:39:04,431 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,431 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,463 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,493 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 19:39:04,517 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 19:39:04,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 19:39:04,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 19:39:04,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (1/1) ... [2025-04-13 19:39:04,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:39:04,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:39:04,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-13 19:39:04,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-13 19:39:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-04-13 19:39:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 19:39:04,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-13 19:39:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2025-04-13 19:39:04,571 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-04-13 19:39:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2025-04-13 19:39:04,572 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-04-13 19:39:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-04-13 19:39:04,574 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 19:39:04,953 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 19:39:04,954 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 19:39:05,716 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 19:39:05,717 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 19:39:05,717 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 19:39:07,333 INFO L313 CfgBuilder]: Removed 11 assume(true) statements. [2025-04-13 19:39:07,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:39:07 BoogieIcfgContainer [2025-04-13 19:39:07,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 19:39:07,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 19:39:07,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 19:39:07,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 19:39:07,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:38:58" (1/3) ... [2025-04-13 19:39:07,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78123b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:39:07, skipping insertion in model container [2025-04-13 19:39:07,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:04" (2/3) ... [2025-04-13 19:39:07,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78123b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:39:07, skipping insertion in model container [2025-04-13 19:39:07,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:39:07" (3/3) ... [2025-04-13 19:39:07,340 INFO L128 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2025-04-13 19:39:07,354 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 19:39:07,359 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i that has 3 procedures, 51 locations, 85 edges, 1 initial locations, 14 loop locations, and 2 error locations. [2025-04-13 19:39:07,359 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 19:39:07,470 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 19:39:07,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 87 transitions, 188 flow [2025-04-13 19:39:07,559 INFO L116 PetriNetUnfolderBase]: 37/85 cut-off events. [2025-04-13 19:39:07,561 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-13 19:39:07,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 85 events. 37/85 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 169 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 61. Up to 7 conditions per place. [2025-04-13 19:39:07,563 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 87 transitions, 188 flow [2025-04-13 19:39:07,566 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 83 transitions, 175 flow [2025-04-13 19:39:07,573 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 19:39:07,583 INFO L340 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;@5c396a92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 19:39:07,583 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-13 19:39:07,607 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 19:39:07,607 INFO L116 PetriNetUnfolderBase]: 5/9 cut-off events. [2025-04-13 19:39:07,608 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:39:07,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:39:07,608 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-04-13 19:39:07,609 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:39:07,612 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:39:07,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2317453, now seen corresponding path program 1 times [2025-04-13 19:39:07,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:39:07,618 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108682604] [2025-04-13 19:39:07,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:39:07,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:39:07,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-13 19:39:07,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-13 19:39:07,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:39:07,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:39:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:39:08,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:39:08,400 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108682604] [2025-04-13 19:39:08,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108682604] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:39:08,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:39:08,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-13 19:39:08,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273163537] [2025-04-13 19:39:08,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:39:08,407 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-13 19:39:08,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:39:08,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-13 19:39:08,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 19:39:08,429 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 87 [2025-04-13 19:39:08,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 83 transitions, 175 flow. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2025-04-13 19:39:08,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:39:08,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 87 [2025-04-13 19:39:08,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:39:08,803 INFO L116 PetriNetUnfolderBase]: 938/1359 cut-off events. [2025-04-13 19:39:08,803 INFO L117 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2025-04-13 19:39:08,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2761 conditions, 1359 events. 938/1359 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4456 event pairs, 530 based on Foata normal form. 0/949 useless extension candidates. Maximal degree in co-relation 2617. Up to 1357 conditions per place. [2025-04-13 19:39:08,813 INFO L140 encePairwiseOnDemand]: 75/87 looper letters, 68 selfloop transitions, 0 changer transitions 2/71 dead transitions. [2025-04-13 19:39:08,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 71 transitions, 291 flow [2025-04-13 19:39:08,814 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 19:39:08,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-13 19:39:08,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 88 transitions. [2025-04-13 19:39:08,822 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5057471264367817 [2025-04-13 19:39:08,823 INFO L175 Difference]: Start difference. First operand has 53 places, 83 transitions, 175 flow. Second operand 2 states and 88 transitions. [2025-04-13 19:39:08,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 71 transitions, 291 flow [2025-04-13 19:39:08,829 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 71 transitions, 286 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-13 19:39:08,832 INFO L231 Difference]: Finished difference. Result has 50 places, 69 transitions, 141 flow [2025-04-13 19:39:08,834 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=141, PETRI_PLACES=50, PETRI_TRANSITIONS=69} [2025-04-13 19:39:08,837 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -3 predicate places. [2025-04-13 19:39:08,837 INFO L485 AbstractCegarLoop]: Abstraction has has 50 places, 69 transitions, 141 flow [2025-04-13 19:39:08,837 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2025-04-13 19:39:08,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:39:08,837 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:39:08,838 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 19:39:08,838 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:39:08,838 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:39:08,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1172548212, now seen corresponding path program 1 times [2025-04-13 19:39:08,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:39:08,839 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076698056] [2025-04-13 19:39:08,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:39:08,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:39:08,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-13 19:39:08,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-13 19:39:08,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:39:08,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:39:09,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:39:09,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:39:09,178 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076698056] [2025-04-13 19:39:09,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076698056] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:39:09,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:39:09,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 19:39:09,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713299394] [2025-04-13 19:39:09,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:39:09,179 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 19:39:09,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:39:09,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 19:39:09,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 19:39:09,179 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 87 [2025-04-13 19:39:09,180 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 69 transitions, 141 flow. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2025-04-13 19:39:09,180 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:39:09,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 87 [2025-04-13 19:39:09,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:39:09,432 INFO L116 PetriNetUnfolderBase]: 859/1237 cut-off events. [2025-04-13 19:39:09,432 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:39:09,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2499 conditions, 1237 events. 859/1237 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3928 event pairs, 475 based on Foata normal form. 0/881 useless extension candidates. Maximal degree in co-relation 2496. Up to 1234 conditions per place. [2025-04-13 19:39:09,441 INFO L140 encePairwiseOnDemand]: 83/87 looper letters, 67 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2025-04-13 19:39:09,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 70 transitions, 281 flow [2025-04-13 19:39:09,442 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 19:39:09,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-13 19:39:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2025-04-13 19:39:09,443 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.3065134099616858 [2025-04-13 19:39:09,443 INFO L175 Difference]: Start difference. First operand has 50 places, 69 transitions, 141 flow. Second operand 3 states and 80 transitions. [2025-04-13 19:39:09,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 70 transitions, 281 flow [2025-04-13 19:39:09,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 70 transitions, 281 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-13 19:39:09,445 INFO L231 Difference]: Finished difference. Result has 51 places, 70 transitions, 155 flow [2025-04-13 19:39:09,445 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=155, PETRI_PLACES=51, PETRI_TRANSITIONS=70} [2025-04-13 19:39:09,447 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2025-04-13 19:39:09,447 INFO L485 AbstractCegarLoop]: Abstraction has has 51 places, 70 transitions, 155 flow [2025-04-13 19:39:09,447 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2025-04-13 19:39:09,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:39:09,447 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:39:09,447 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 19:39:09,447 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:39:09,450 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:39:09,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1497661263, now seen corresponding path program 1 times [2025-04-13 19:39:09,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:39:09,450 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14720296] [2025-04-13 19:39:09,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:39:09,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:39:09,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-13 19:39:09,525 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-13 19:39:09,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:39:09,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:39:09,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:39:09,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:39:09,751 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14720296] [2025-04-13 19:39:09,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14720296] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 19:39:09,751 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299021071] [2025-04-13 19:39:09,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:39:09,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 19:39:09,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:39:09,753 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 19:39:09,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-13 19:39:10,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-13 19:39:10,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-13 19:39:10,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:39:10,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:39:10,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-04-13 19:39:10,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 19:39:10,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:39:10,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 19:39:10,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 19:39:10,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299021071] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 19:39:10,311 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 19:39:10,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2025-04-13 19:39:10,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250181383] [2025-04-13 19:39:10,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 19:39:10,311 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-13 19:39:10,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:39:10,312 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-13 19:39:10,312 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-04-13 19:39:10,312 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 87 [2025-04-13 19:39:10,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 70 transitions, 155 flow. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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) [2025-04-13 19:39:10,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:39:10,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 87 [2025-04-13 19:39:10,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:39:10,665 INFO L116 PetriNetUnfolderBase]: 859/1242 cut-off events. [2025-04-13 19:39:10,666 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:39:10,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2520 conditions, 1242 events. 859/1242 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3953 event pairs, 475 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 2515. Up to 1234 conditions per place. [2025-04-13 19:39:10,671 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 66 selfloop transitions, 8 changer transitions 0/75 dead transitions. [2025-04-13 19:39:10,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 75 transitions, 319 flow [2025-04-13 19:39:10,671 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 19:39:10,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-13 19:39:10,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 102 transitions. [2025-04-13 19:39:10,672 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.19540229885057472 [2025-04-13 19:39:10,672 INFO L175 Difference]: Start difference. First operand has 51 places, 70 transitions, 155 flow. Second operand 6 states and 102 transitions. [2025-04-13 19:39:10,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 75 transitions, 319 flow [2025-04-13 19:39:10,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 75 transitions, 315 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-04-13 19:39:10,673 INFO L231 Difference]: Finished difference. Result has 58 places, 75 transitions, 217 flow [2025-04-13 19:39:10,674 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=217, PETRI_PLACES=58, PETRI_TRANSITIONS=75} [2025-04-13 19:39:10,674 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 5 predicate places. [2025-04-13 19:39:10,674 INFO L485 AbstractCegarLoop]: Abstraction has has 58 places, 75 transitions, 217 flow [2025-04-13 19:39:10,674 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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) [2025-04-13 19:39:10,674 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:39:10,674 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:39:10,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-13 19:39:10,875 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 19:39:10,875 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:39:10,876 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:39:10,876 INFO L85 PathProgramCache]: Analyzing trace with hash -2058798478, now seen corresponding path program 1 times [2025-04-13 19:39:10,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:39:10,876 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972282069] [2025-04-13 19:39:10,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:39:10,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:39:10,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-13 19:39:10,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-13 19:39:10,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:39:10,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:39:11,053 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-13 19:39:11,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:39:11,054 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972282069] [2025-04-13 19:39:11,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972282069] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:39:11,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:39:11,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 19:39:11,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270690708] [2025-04-13 19:39:11,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:39:11,054 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 19:39:11,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:39:11,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 19:39:11,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-13 19:39:11,055 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 87 [2025-04-13 19:39:11,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 75 transitions, 217 flow. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2025-04-13 19:39:11,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:39:11,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 87 [2025-04-13 19:39:11,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:39:11,430 INFO L116 PetriNetUnfolderBase]: 1327/1947 cut-off events. [2025-04-13 19:39:11,430 INFO L117 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-04-13 19:39:11,435 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3911 conditions, 1947 events. 1327/1947 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 8160 event pairs, 13 based on Foata normal form. 0/1409 useless extension candidates. Maximal degree in co-relation 3903. Up to 1148 conditions per place. [2025-04-13 19:39:11,442 INFO L140 encePairwiseOnDemand]: 83/87 looper letters, 129 selfloop transitions, 3 changer transitions 0/133 dead transitions. [2025-04-13 19:39:11,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 133 transitions, 601 flow [2025-04-13 19:39:11,442 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 19:39:11,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-13 19:39:11,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2025-04-13 19:39:11,445 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.3994252873563218 [2025-04-13 19:39:11,445 INFO L175 Difference]: Start difference. First operand has 58 places, 75 transitions, 217 flow. Second operand 4 states and 139 transitions. [2025-04-13 19:39:11,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 133 transitions, 601 flow [2025-04-13 19:39:11,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 133 transitions, 591 flow, removed 4 selfloop flow, removed 1 redundant places. [2025-04-13 19:39:11,447 INFO L231 Difference]: Finished difference. Result has 61 places, 76 transitions, 221 flow [2025-04-13 19:39:11,449 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=221, PETRI_PLACES=61, PETRI_TRANSITIONS=76} [2025-04-13 19:39:11,451 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2025-04-13 19:39:11,451 INFO L485 AbstractCegarLoop]: Abstraction has has 61 places, 76 transitions, 221 flow [2025-04-13 19:39:11,451 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2025-04-13 19:39:11,451 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:39:11,451 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:39:11,451 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 19:39:11,451 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 19:39:11,452 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:39:11,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2116056780, now seen corresponding path program 2 times [2025-04-13 19:39:11,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:39:11,452 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573170058] [2025-04-13 19:39:11,452 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 19:39:11,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:39:11,504 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-04-13 19:39:11,567 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 15 statements. [2025-04-13 19:39:11,567 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 19:39:11,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:39:11,832 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-13 19:39:11,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:39:11,832 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573170058] [2025-04-13 19:39:11,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573170058] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:39:11,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:39:11,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 19:39:11,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20793424] [2025-04-13 19:39:11,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:39:11,833 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 19:39:11,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:39:11,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 19:39:11,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 19:39:11,834 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 87 [2025-04-13 19:39:11,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 76 transitions, 221 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2025-04-13 19:39:11,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:39:11,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 87 [2025-04-13 19:39:11,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:39:12,136 INFO L116 PetriNetUnfolderBase]: 1269/1859 cut-off events. [2025-04-13 19:39:12,136 INFO L117 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-04-13 19:39:12,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3910 conditions, 1859 events. 1269/1859 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 7664 event pairs, 55 based on Foata normal form. 30/1427 useless extension candidates. Maximal degree in co-relation 3900. Up to 1590 conditions per place. [2025-04-13 19:39:12,141 INFO L140 encePairwiseOnDemand]: 83/87 looper letters, 0 selfloop transitions, 0 changer transitions 99/99 dead transitions. [2025-04-13 19:39:12,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 99 transitions, 465 flow [2025-04-13 19:39:12,141 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 19:39:12,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-13 19:39:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2025-04-13 19:39:12,142 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.38697318007662834 [2025-04-13 19:39:12,142 INFO L175 Difference]: Start difference. First operand has 61 places, 76 transitions, 221 flow. Second operand 3 states and 101 transitions. [2025-04-13 19:39:12,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 99 transitions, 465 flow [2025-04-13 19:39:12,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 99 transitions, 461 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-13 19:39:12,146 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2025-04-13 19:39:12,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2025-04-13 19:39:12,147 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2025-04-13 19:39:12,147 INFO L485 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2025-04-13 19:39:12,147 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2025-04-13 19:39:12,149 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-04-13 19:39:12,149 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2025-04-13 19:39:12,149 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-04-13 19:39:12,149 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2025-04-13 19:39:12,149 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2025-04-13 19:39:12,150 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 19:39:12,150 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2025-04-13 19:39:12,153 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 19:39:12,153 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 19:39:12,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 07:39:12 BasicIcfg [2025-04-13 19:39:12,156 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 19:39:12,157 INFO L158 Benchmark]: Toolchain (without parser) took 13318.15ms. Allocated memory was 142.6MB in the beginning and 713.0MB in the end (delta: 570.4MB). Free memory was 85.8MB in the beginning and 371.0MB in the end (delta: -285.2MB). Peak memory consumption was 285.2MB. Max. memory is 8.0GB. [2025-04-13 19:39:12,157 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 163.6MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:39:12,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5404.97ms. Allocated memory was 142.6MB in the beginning and 356.5MB in the end (delta: 213.9MB). Free memory was 85.8MB in the beginning and 255.4MB in the end (delta: -169.6MB). Peak memory consumption was 98.0MB. Max. memory is 8.0GB. [2025-04-13 19:39:12,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.10ms. Allocated memory is still 356.5MB. Free memory was 255.4MB in the beginning and 242.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-13 19:39:12,158 INFO L158 Benchmark]: Boogie Preprocessor took 136.46ms. Allocated memory is still 356.5MB. Free memory was 242.8MB in the beginning and 231.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-13 19:39:12,158 INFO L158 Benchmark]: RCFGBuilder took 2816.68ms. Allocated memory was 356.5MB in the beginning and 713.0MB in the end (delta: 356.5MB). Free memory was 231.3MB in the beginning and 471.3MB in the end (delta: -240.0MB). Peak memory consumption was 194.6MB. Max. memory is 8.0GB. [2025-04-13 19:39:12,158 INFO L158 Benchmark]: TraceAbstraction took 4821.39ms. Allocated memory is still 713.0MB. Free memory was 471.3MB in the beginning and 371.0MB in the end (delta: 100.3MB). Peak memory consumption was 102.4MB. Max. memory is 8.0GB. [2025-04-13 19:39:12,159 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 163.6MB. Free memory is still 91.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 5404.97ms. Allocated memory was 142.6MB in the beginning and 356.5MB in the end (delta: 213.9MB). Free memory was 85.8MB in the beginning and 255.4MB in the end (delta: -169.6MB). Peak memory consumption was 98.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 134.10ms. Allocated memory is still 356.5MB. Free memory was 255.4MB in the beginning and 242.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 136.46ms. Allocated memory is still 356.5MB. Free memory was 242.8MB in the beginning and 231.3MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 2816.68ms. Allocated memory was 356.5MB in the beginning and 713.0MB in the end (delta: 356.5MB). Free memory was 231.3MB in the beginning and 471.3MB in the end (delta: -240.0MB). Peak memory consumption was 194.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4821.39ms. Allocated memory is still 713.0MB. Free memory was 471.3MB in the beginning and 371.0MB in the end (delta: 100.3MB). Peak memory consumption was 102.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 5817]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 175]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 81 locations, 134 edges, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 828 IncrementalHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 0 mSDtfsCounter, 828 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221occurred in iteration=4, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 68 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 147 SizeOfPredicates, 3 NumberOfNonLiveVariables, 629 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 20/23 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-13 19:39:12,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...