/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_open_pc8736x_gpio_change.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 19:39:08,557 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 19:39:08,610 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 19:39:08,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 19:39:08,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 19:39:08,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 19:39:08,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 19:39:08,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 19:39:08,639 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 19:39:08,640 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 19:39:08,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 19:39:08,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 19:39:08,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 19:39:08,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 19:39:08,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 19:39:08,642 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 19:39:08,643 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 19:39:08,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:39:08,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:39:08,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:39:08,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:39:08,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 19:39:08,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 19:39:08,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 19:39:08,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 19:39:08,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:39:08,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 19:39:08,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 19:39:08,644 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 19:39:08,644 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 19:39:08,644 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 19:39:08,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 19:39:08,644 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 19:39:08,644 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 19:39:08,644 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 19:39:08,644 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 19:39:08,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 19:39:08,871 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 19:39:08,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 19:39:08,874 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 19:39:08,874 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 19:39:08,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2025-04-13 19:39:10,195 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dde259291/bd3a2263e7d045b6bb57e18975d513e2/FLAG0106850bb [2025-04-13 19:39:10,618 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 19:39:10,619 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2025-04-13 19:39:10,653 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dde259291/bd3a2263e7d045b6bb57e18975d513e2/FLAG0106850bb [2025-04-13 19:39:11,245 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dde259291/bd3a2263e7d045b6bb57e18975d513e2 [2025-04-13 19:39:11,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 19:39:11,248 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 19:39:11,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 19:39:11,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 19:39:11,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 19:39:11,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:39:11" (1/1) ... [2025-04-13 19:39:11,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e2abbbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:11, skipping insertion in model container [2025-04-13 19:39:11,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 07:39:11" (1/1) ... [2025-04-13 19:39:11,319 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 19:39:11,637 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_open_pc8736x_gpio_change.i[5520,5533] [2025-04-13 19:39:15,944 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 19:39:15,945 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 19:39:16,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:39:16,038 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 19:39:16,062 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_open_pc8736x_gpio_change.i[5520,5533] [2025-04-13 19:39:16,147 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 19:39:16,149 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 19:39:16,149 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 19:39:16,149 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 19:39:16,225 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-04-13 19:39:16,254 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 19:39:16,254 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 19:39:16,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 19:39:16,583 INFO L204 MainTranslator]: Completed translation [2025-04-13 19:39:16,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16 WrapperNode [2025-04-13 19:39:16,583 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 19:39:16,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 19:39:16,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 19:39:16,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 19:39:16,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,657 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,720 INFO L138 Inliner]: procedures = 1392, calls = 1531, calls flagged for inlining = 397, calls inlined = 56, statements flattened = 750 [2025-04-13 19:39:16,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 19:39:16,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 19:39:16,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 19:39:16,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 19:39:16,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,768 INFO L175 MemorySlicer]: Split 71 memory accesses to 12 slices as follows [2, 1, 2, 9, 9, 10, 25, 4, 4, 2, 1, 2]. 35 percent of accesses are in the largest equivalence class. The 50 initializations are split as follows [2, 1, 2, 4, 4, 8, 25, 4, 0, 0, 0, 0]. The 7 writes are split as follows [0, 0, 0, 2, 0, 1, 0, 0, 1, 1, 0, 2]. [2025-04-13 19:39:16,769 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,799 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,819 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 19:39:16,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 19:39:16,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 19:39:16,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 19:39:16,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (1/1) ... [2025-04-13 19:39:16,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 19:39:16,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:39:16,872 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 19:39:16,875 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 19:39:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 19:39:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 19:39:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-13 19:39:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-13 19:39:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-04-13 19:39:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-04-13 19:39:16,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-04-13 19:39:16,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-04-13 19:39:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-04-13 19:39:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-04-13 19:39:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-04-13 19:39:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-13 19:39:16,895 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-13 19:39:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 19:39:16,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 19:39:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2025-04-13 19:39:16,895 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2025-04-13 19:39:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-13 19:39:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-04-13 19:39:16,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-04-13 19:39:16,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-04-13 19:39:16,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-04-13 19:39:16,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-04-13 19:39:16,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-04-13 19:39:16,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-04-13 19:39:16,901 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 19:39:17,233 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 19:39:17,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 19:39:17,896 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 19:39:17,896 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 19:39:17,896 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 19:39:19,370 INFO L313 CfgBuilder]: Removed 12 assume(true) statements. [2025-04-13 19:39:19,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:39:19 BoogieIcfgContainer [2025-04-13 19:39:19,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 19:39:19,372 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 19:39:19,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 19:39:19,375 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 19:39:19,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 07:39:11" (1/3) ... [2025-04-13 19:39:19,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c7fdb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:39:19, skipping insertion in model container [2025-04-13 19:39:19,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 07:39:16" (2/3) ... [2025-04-13 19:39:19,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70c7fdb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 07:39:19, skipping insertion in model container [2025-04-13 19:39:19,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 07:39:19" (3/3) ... [2025-04-13 19:39:19,377 INFO L128 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2025-04-13 19:39:19,387 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 19:39:19,390 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i that has 3 procedures, 44 locations, 72 edges, 1 initial locations, 15 loop locations, and 4 error locations. [2025-04-13 19:39:19,391 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 19:39:19,487 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 19:39:19,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 74 transitions, 162 flow [2025-04-13 19:39:19,558 INFO L116 PetriNetUnfolderBase]: 31/72 cut-off events. [2025-04-13 19:39:19,563 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-13 19:39:19,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 72 events. 31/72 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 122 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 7 conditions per place. [2025-04-13 19:39:19,565 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 74 transitions, 162 flow [2025-04-13 19:39:19,567 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 70 transitions, 149 flow [2025-04-13 19:39:19,572 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 19:39:19,581 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;@7bee6a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 19:39:19,581 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-13 19:39:19,604 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-13 19:39:19,604 INFO L116 PetriNetUnfolderBase]: 5/9 cut-off events. [2025-04-13 19:39:19,605 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-13 19:39:19,605 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:39:19,605 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-04-13 19:39:19,605 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 19:39:19,610 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:39:19,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2118088, now seen corresponding path program 1 times [2025-04-13 19:39:19,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:39:19,616 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238660793] [2025-04-13 19:39:19,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:39:19,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:39:19,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-13 19:39:19,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-13 19:39:19,858 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:39:19,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:39:20,439 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 19:39:20,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:39:20,439 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238660793] [2025-04-13 19:39:20,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238660793] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:39:20,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:39:20,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-13 19:39:20,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350644535] [2025-04-13 19:39:20,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:39:20,447 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-13 19:39:20,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:39:20,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-13 19:39:20,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 19:39:20,469 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 74 [2025-04-13 19:39:20,471 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 70 transitions, 149 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 19:39:20,471 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:39:20,471 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 74 [2025-04-13 19:39:20,471 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:39:20,688 INFO L116 PetriNetUnfolderBase]: 179/311 cut-off events. [2025-04-13 19:39:20,689 INFO L117 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2025-04-13 19:39:20,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 311 events. 179/311 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 888 event pairs, 118 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 494. Up to 305 conditions per place. [2025-04-13 19:39:20,693 INFO L140 encePairwiseOnDemand]: 59/74 looper letters, 53 selfloop transitions, 0 changer transitions 1/55 dead transitions. [2025-04-13 19:39:20,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 227 flow [2025-04-13 19:39:20,695 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 19:39:20,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-13 19:39:20,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 75 transitions. [2025-04-13 19:39:20,706 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5067567567567568 [2025-04-13 19:39:20,708 INFO L175 Difference]: Start difference. First operand has 46 places, 70 transitions, 149 flow. Second operand 2 states and 75 transitions. [2025-04-13 19:39:20,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 227 flow [2025-04-13 19:39:20,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 55 transitions, 222 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-13 19:39:20,713 INFO L231 Difference]: Finished difference. Result has 41 places, 54 transitions, 112 flow [2025-04-13 19:39:20,717 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=112, PETRI_PLACES=41, PETRI_TRANSITIONS=54} [2025-04-13 19:39:20,721 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -5 predicate places. [2025-04-13 19:39:20,721 INFO L485 AbstractCegarLoop]: Abstraction has has 41 places, 54 transitions, 112 flow [2025-04-13 19:39:20,721 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 19:39:20,721 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:39:20,721 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:39:20,721 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 19:39:20,721 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 19:39:20,722 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:39:20,722 INFO L85 PathProgramCache]: Analyzing trace with hash -545784142, now seen corresponding path program 1 times [2025-04-13 19:39:20,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:39:20,724 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055130075] [2025-04-13 19:39:20,724 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:39:20,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:39:20,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-13 19:39:20,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-13 19:39:20,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:39:20,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:39:21,210 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 19:39:21,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:39:21,210 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055130075] [2025-04-13 19:39:21,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055130075] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:39:21,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:39:21,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 19:39:21,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813347919] [2025-04-13 19:39:21,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:39:21,212 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 19:39:21,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:39:21,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 19:39:21,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 19:39:21,212 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 74 [2025-04-13 19:39:21,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 54 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 19:39:21,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:39:21,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 74 [2025-04-13 19:39:21,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:39:21,400 INFO L116 PetriNetUnfolderBase]: 171/297 cut-off events. [2025-04-13 19:39:21,400 INFO L117 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2025-04-13 19:39:21,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 297 events. 171/297 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 831 event pairs, 110 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 594. Up to 290 conditions per place. [2025-04-13 19:39:21,402 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 52 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2025-04-13 19:39:21,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 55 transitions, 222 flow [2025-04-13 19:39:21,403 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 19:39:21,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-13 19:39:21,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2025-04-13 19:39:21,403 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.2927927927927928 [2025-04-13 19:39:21,403 INFO L175 Difference]: Start difference. First operand has 41 places, 54 transitions, 112 flow. Second operand 3 states and 65 transitions. [2025-04-13 19:39:21,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 55 transitions, 222 flow [2025-04-13 19:39:21,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 55 transitions, 222 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-13 19:39:21,405 INFO L231 Difference]: Finished difference. Result has 43 places, 55 transitions, 126 flow [2025-04-13 19:39:21,405 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=43, PETRI_TRANSITIONS=55} [2025-04-13 19:39:21,406 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -3 predicate places. [2025-04-13 19:39:21,406 INFO L485 AbstractCegarLoop]: Abstraction has has 43 places, 55 transitions, 126 flow [2025-04-13 19:39:21,406 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 19:39:21,406 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:39:21,406 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:39:21,406 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 19:39:21,406 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 19:39:21,407 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:39:21,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1868220667, now seen corresponding path program 1 times [2025-04-13 19:39:21,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:39:21,407 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229448658] [2025-04-13 19:39:21,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:39:21,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:39:21,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-13 19:39:21,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-13 19:39:21,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:39:21,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:39:21,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-13 19:39:21,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:39:21,522 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229448658] [2025-04-13 19:39:21,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229448658] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:39:21,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 19:39:21,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 19:39:21,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363066136] [2025-04-13 19:39:21,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:39:21,522 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 19:39:21,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:39:21,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 19:39:21,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 19:39:21,523 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 74 [2025-04-13 19:39:21,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 55 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 19:39:21,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:39:21,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 74 [2025-04-13 19:39:21,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:39:21,729 INFO L116 PetriNetUnfolderBase]: 202/356 cut-off events. [2025-04-13 19:39:21,729 INFO L117 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2025-04-13 19:39:21,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 716 conditions, 356 events. 202/356 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1134 event pairs, 110 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 711. Up to 291 conditions per place. [2025-04-13 19:39:21,732 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 60 selfloop transitions, 2 changer transitions 0/63 dead transitions. [2025-04-13 19:39:21,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 63 transitions, 267 flow [2025-04-13 19:39:21,733 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 19:39:21,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-13 19:39:21,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-04-13 19:39:21,734 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.32432432432432434 [2025-04-13 19:39:21,734 INFO L175 Difference]: Start difference. First operand has 43 places, 55 transitions, 126 flow. Second operand 3 states and 72 transitions. [2025-04-13 19:39:21,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 63 transitions, 267 flow [2025-04-13 19:39:21,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 63 transitions, 263 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-04-13 19:39:21,735 INFO L231 Difference]: Finished difference. Result has 45 places, 56 transitions, 136 flow [2025-04-13 19:39:21,735 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=45, PETRI_TRANSITIONS=56} [2025-04-13 19:39:21,736 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2025-04-13 19:39:21,736 INFO L485 AbstractCegarLoop]: Abstraction has has 45 places, 56 transitions, 136 flow [2025-04-13 19:39:21,736 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 19:39:21,736 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-13 19:39:21,736 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 19:39:21,736 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 19:39:21,736 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 19:39:21,740 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 19:39:21,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1868280249, now seen corresponding path program 1 times [2025-04-13 19:39:21,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 19:39:21,740 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204060005] [2025-04-13 19:39:21,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:39:21,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 19:39:21,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-13 19:39:21,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-13 19:39:21,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:39:21,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:39:22,128 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 19:39:22,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 19:39:22,128 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204060005] [2025-04-13 19:39:22,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204060005] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 19:39:22,128 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456241144] [2025-04-13 19:39:22,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 19:39:22,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 19:39:22,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 19:39:22,133 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 19:39:22,134 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 19:39:22,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-13 19:39:22,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-13 19:39:22,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 19:39:22,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 19:39:22,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-13 19:39:22,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 19:39:22,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-13 19:39:22,630 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-13 19:39:22,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456241144] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 19:39:22,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-13 19:39:22,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2025-04-13 19:39:22,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350541935] [2025-04-13 19:39:22,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 19:39:22,631 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 19:39:22,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 19:39:22,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 19:39:22,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 19:39:22,633 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 74 [2025-04-13 19:39:22,633 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 56 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 19:39:22,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-13 19:39:22,633 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 74 [2025-04-13 19:39:22,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-13 19:39:22,819 INFO L116 PetriNetUnfolderBase]: 194/341 cut-off events. [2025-04-13 19:39:22,820 INFO L117 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-04-13 19:39:22,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 341 events. 194/341 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1092 event pairs, 30 based on Foata normal form. 7/308 useless extension candidates. Maximal degree in co-relation 721. Up to 222 conditions per place. [2025-04-13 19:39:22,821 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 0 selfloop transitions, 0 changer transitions 59/59 dead transitions. [2025-04-13 19:39:22,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 59 transitions, 259 flow [2025-04-13 19:39:22,822 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 19:39:22,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-13 19:39:22,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2025-04-13 19:39:22,822 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.2972972972972973 [2025-04-13 19:39:22,822 INFO L175 Difference]: Start difference. First operand has 45 places, 56 transitions, 136 flow. Second operand 3 states and 66 transitions. [2025-04-13 19:39:22,822 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 59 transitions, 259 flow [2025-04-13 19:39:22,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 59 transitions, 257 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-13 19:39:22,824 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2025-04-13 19:39:22,824 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2025-04-13 19:39:22,825 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2025-04-13 19:39:22,825 INFO L485 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2025-04-13 19:39:22,825 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 19:39:22,827 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2025-04-13 19:39:22,827 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2025-04-13 19:39:22,827 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2025-04-13 19:39:22,828 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2025-04-13 19:39:22,828 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2025-04-13 19:39:22,828 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2025-04-13 19:39:22,828 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2025-04-13 19:39:22,828 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2025-04-13 19:39:22,828 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2025-04-13 19:39:22,840 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 19:39:23,028 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 19:39:23,029 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-04-13 19:39:23,032 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 19:39:23,032 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 19:39:23,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 07:39:23 BasicIcfg [2025-04-13 19:39:23,036 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 19:39:23,039 INFO L158 Benchmark]: Toolchain (without parser) took 11787.94ms. Allocated memory was 155.2MB in the beginning and 608.2MB in the end (delta: 453.0MB). Free memory was 99.9MB in the beginning and 378.1MB in the end (delta: -278.2MB). Peak memory consumption was 174.2MB. Max. memory is 8.0GB. [2025-04-13 19:39:23,039 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 159.4MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 19:39:23,039 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5334.33ms. Allocated memory was 155.2MB in the beginning and 390.1MB in the end (delta: 234.9MB). Free memory was 99.9MB in the beginning and 314.0MB in the end (delta: -214.1MB). Peak memory consumption was 111.0MB. Max. memory is 8.0GB. [2025-04-13 19:39:23,039 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.90ms. Allocated memory is still 390.1MB. Free memory was 314.0MB in the beginning and 302.7MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-13 19:39:23,039 INFO L158 Benchmark]: Boogie Preprocessor took 123.76ms. Allocated memory is still 390.1MB. Free memory was 302.7MB in the beginning and 290.9MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-13 19:39:23,040 INFO L158 Benchmark]: RCFGBuilder took 2525.25ms. Allocated memory was 390.1MB in the beginning and 608.2MB in the end (delta: 218.1MB). Free memory was 290.9MB in the beginning and 490.3MB in the end (delta: -199.4MB). Peak memory consumption was 246.2MB. Max. memory is 8.0GB. [2025-04-13 19:39:23,040 INFO L158 Benchmark]: TraceAbstraction took 3663.50ms. Allocated memory is still 608.2MB. Free memory was 490.3MB in the beginning and 378.1MB in the end (delta: 112.2MB). Peak memory consumption was 110.4MB. Max. memory is 8.0GB. [2025-04-13 19:39:23,041 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 159.4MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 5334.33ms. Allocated memory was 155.2MB in the beginning and 390.1MB in the end (delta: 234.9MB). Free memory was 99.9MB in the beginning and 314.0MB in the end (delta: -214.1MB). Peak memory consumption was 111.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 136.90ms. Allocated memory is still 390.1MB. Free memory was 314.0MB in the beginning and 302.7MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 123.76ms. Allocated memory is still 390.1MB. Free memory was 302.7MB in the beginning and 290.9MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 2525.25ms. Allocated memory was 390.1MB in the beginning and 608.2MB in the end (delta: 218.1MB). Free memory was 290.9MB in the beginning and 490.3MB in the end (delta: -199.4MB). Peak memory consumption was 246.2MB. Max. memory is 8.0GB. * TraceAbstraction took 3663.50ms. Allocated memory is still 608.2MB. Free memory was 490.3MB in the beginning and 378.1MB in the end (delta: 112.2MB). Peak memory consumption was 110.4MB. 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 - 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, 67 locations, 108 edges, 9 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: 3.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 363 IncrementalHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 1 mSDtfsCounter, 363 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 1.3s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 1 NumberOfNonLiveVariables, 669 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 2/3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-13 19:39:23,057 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...