/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_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-14 00:11:53,492 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 00:11:53,546 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 [2025-04-14 00:11:53,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 00:11:53,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 00:11:53,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 00:11:53,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 00:11:53,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 00:11:53,571 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-14 00:11:53,571 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-14 00:11:53,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 00:11:53,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 00:11:53,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 00:11:53,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 00:11:53,572 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 00:11:53,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 00:11:53,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 00:11:53,572 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 00:11:53,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 00:11:53,573 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:11:53,573 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:11:53,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:11:53,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 00:11:53,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 00:11:53,574 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 00:11:53,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 00:11:53,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 00:11:53,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 00:11:53,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-14 00:11:53,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-14 00:11:53,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 00:11:53,574 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-14 00:11:53,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 00:11:53,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 00:11:53,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 00:11:53,819 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 00:11:53,819 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 00:11:53,820 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2025-04-14 00:11:55,172 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5a18aeb/39684af468f348378f90f13a1f12a68e/FLAGc475f1d4c [2025-04-14 00:11:55,580 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 00:11:55,581 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2025-04-14 00:11:55,623 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5a18aeb/39684af468f348378f90f13a1f12a68e/FLAGc475f1d4c [2025-04-14 00:11:56,173 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5a18aeb/39684af468f348378f90f13a1f12a68e [2025-04-14 00:11:56,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 00:11:56,176 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 00:11:56,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 00:11:56,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 00:11:56,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 00:11:56,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:11:56" (1/1) ... [2025-04-14 00:11:56,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@894ccf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:11:56, skipping insertion in model container [2025-04-14 00:11:56,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:11:56" (1/1) ... [2025-04-14 00:11:56,250 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 00:11:56,617 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_change_pc8736x_gpio_configure.i[5520,5533] [2025-04-14 00:11:59,562 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:11:59,562 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:11:59,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:11:59,622 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 00:11:59,643 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_change_pc8736x_gpio_configure.i[5520,5533] [2025-04-14 00:11:59,725 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] [2025-04-14 00:11:59,727 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] [2025-04-14 00:11:59,727 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] [2025-04-14 00:11:59,727 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] [2025-04-14 00:11:59,828 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-04-14 00:11:59,860 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:11:59,860 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:11:59,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:12:00,212 INFO L204 MainTranslator]: Completed translation [2025-04-14 00:12:00,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00 WrapperNode [2025-04-14 00:12:00,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 00:12:00,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 00:12:00,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 00:12:00,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 00:12:00,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,282 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,355 INFO L138 Inliner]: procedures = 1392, calls = 1531, calls flagged for inlining = 397, calls inlined = 75, statements flattened = 845 [2025-04-14 00:12:00,355 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 00:12:00,356 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 00:12:00,356 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 00:12:00,356 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 00:12:00,363 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,370 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,399 INFO L175 MemorySlicer]: Split 71 memory accesses to 10 slices as follows [2, 1, 5, 9, 9, 10, 25, 4, 2, 4]. 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]. The 8 writes are split as follows [0, 0, 2, 2, 0, 1, 0, 0, 2, 1]. [2025-04-14 00:12:00,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,418 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 00:12:00,455 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 00:12:00,455 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 00:12:00,455 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 00:12:00,461 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (1/1) ... [2025-04-14 00:12:00,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:12:00,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:12:00,490 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) [2025-04-14 00:12:00,495 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 [2025-04-14 00:12:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-14 00:12:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-14 00:12:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-14 00:12:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-14 00:12:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-04-14 00:12:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-04-14 00:12:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-04-14 00:12:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-04-14 00:12:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-04-14 00:12:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-04-14 00:12:00,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-14 00:12:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 00:12:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-14 00:12:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-04-14 00:12:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2025-04-14 00:12:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-04-14 00:12:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-04-14 00:12:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-04-14 00:12:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-04-14 00:12:00,516 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 00:12:00,865 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 00:12:00,867 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 00:12:01,050 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:01,050 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:01,051 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:01,051 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6871: havoc pc8736x_gpio_current_#t~bitwise1138#1; [2025-04-14 00:12:01,219 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:01,219 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:01,219 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6832: havoc pc8736x_gpio_configure_#t~ret1120#1; [2025-04-14 00:12:01,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:01,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6713: havoc platform_device_add_#t~nondet1102#1; [2025-04-14 00:12:01,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:01,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:01,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-15: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:01,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-20: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:01,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-25: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:01,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-30: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:01,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6615: havoc alloc_chrdev_region_#t~nondet1085#1; [2025-04-14 00:12:01,607 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6915-1: SUMMARY for call ULTIMATE.dealloc(pc8736x_gpio_init_~#devid~0#1.base, pc8736x_gpio_init_~#devid~0#1.offset); srcloc: null [2025-04-14 00:12:01,608 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6915: havoc pc8736x_gpio_init_~#devid~0#1.base, pc8736x_gpio_init_~#devid~0#1.offset; [2025-04-14 00:12:01,608 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6717: havoc platform_device_alloc_#t~ret1103#1.base, platform_device_alloc_#t~ret1103#1.offset; [2025-04-14 00:12:01,608 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:01,608 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-8: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:01,608 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-16: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:01,608 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-24: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:01,608 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-32: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:01,608 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-40: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:01,608 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6633: havoc cdev_add_#t~nondet1088#1; [2025-04-14 00:12:01,608 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6738: havoc register_chrdev_region_#t~nondet1106#1; [2025-04-14 00:12:01,608 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6607: havoc __request_region_#t~ret1083#1.base, __request_region_#t~ret1083#1.offset; [2025-04-14 00:12:01,609 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 00:12:01,609 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 00:12:01,610 INFO L318 CfgBuilder]: Performing block encoding [2025-04-14 00:12:03,365 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 00:12:03,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:12:03 BoogieIcfgContainer [2025-04-14 00:12:03,366 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 00:12:03,368 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 00:12:03,368 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 00:12:03,371 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 00:12:03,371 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:11:56" (1/3) ... [2025-04-14 00:12:03,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1fbd1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:12:03, skipping insertion in model container [2025-04-14 00:12:03,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:00" (2/3) ... [2025-04-14 00:12:03,373 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d1fbd1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:12:03, skipping insertion in model container [2025-04-14 00:12:03,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:12:03" (3/3) ... [2025-04-14 00:12:03,374 INFO L128 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i [2025-04-14 00:12:03,386 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 00:12:03,389 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_configure.i that has 3 procedures, 54 locations, 89 edges, 1 initial locations, 14 loop locations, and 3 error locations. [2025-04-14 00:12:03,389 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 00:12:03,506 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-14 00:12:03,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 91 transitions, 196 flow [2025-04-14 00:12:03,607 INFO L116 PetriNetUnfolderBase]: 38/89 cut-off events. [2025-04-14 00:12:03,610 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-14 00:12:03,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 89 events. 38/89 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 178 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 60. Up to 7 conditions per place. [2025-04-14 00:12:03,612 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 91 transitions, 196 flow [2025-04-14 00:12:03,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 87 transitions, 183 flow [2025-04-14 00:12:03,624 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-14 00:12:03,635 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;@1aa76e18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 00:12:03,635 INFO L341 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-04-14 00:12:03,658 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-14 00:12:03,658 INFO L116 PetriNetUnfolderBase]: 5/9 cut-off events. [2025-04-14 00:12:03,658 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:12:03,658 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:03,659 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-04-14 00:12:03,659 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 4 more)] === [2025-04-14 00:12:03,662 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:03,663 INFO L85 PathProgramCache]: Analyzing trace with hash 2229556, now seen corresponding path program 1 times [2025-04-14 00:12:03,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:03,670 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875611617] [2025-04-14 00:12:03,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:03,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:03,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-14 00:12:03,924 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-14 00:12:03,924 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:03,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:04,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:04,504 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875611617] [2025-04-14 00:12:04,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875611617] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:04,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:12:04,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-14 00:12:04,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560968790] [2025-04-14 00:12:04,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:04,510 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-14 00:12:04,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:04,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-14 00:12:04,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-14 00:12:04,528 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 91 [2025-04-14 00:12:04,530 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 87 transitions, 183 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) [2025-04-14 00:12:04,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:04,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 91 [2025-04-14 00:12:04,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:04,868 INFO L116 PetriNetUnfolderBase]: 1084/1579 cut-off events. [2025-04-14 00:12:04,868 INFO L117 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2025-04-14 00:12:04,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3189 conditions, 1579 events. 1084/1579 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5446 event pairs, 613 based on Foata normal form. 0/1104 useless extension candidates. Maximal degree in co-relation 3042. Up to 1562 conditions per place. [2025-04-14 00:12:04,881 INFO L140 encePairwiseOnDemand]: 78/91 looper letters, 72 selfloop transitions, 0 changer transitions 1/74 dead transitions. [2025-04-14 00:12:04,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 74 transitions, 303 flow [2025-04-14 00:12:04,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 00:12:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-14 00:12:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 92 transitions. [2025-04-14 00:12:04,892 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5054945054945055 [2025-04-14 00:12:04,893 INFO L175 Difference]: Start difference. First operand has 56 places, 87 transitions, 183 flow. Second operand 2 states and 92 transitions. [2025-04-14 00:12:04,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 74 transitions, 303 flow [2025-04-14 00:12:04,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 74 transitions, 298 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-14 00:12:04,900 INFO L231 Difference]: Finished difference. Result has 52 places, 73 transitions, 150 flow [2025-04-14 00:12:04,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=150, PETRI_PLACES=52, PETRI_TRANSITIONS=73} [2025-04-14 00:12:04,904 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2025-04-14 00:12:04,905 INFO L485 AbstractCegarLoop]: Abstraction has has 52 places, 73 transitions, 150 flow [2025-04-14 00:12:04,905 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) [2025-04-14 00:12:04,905 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:04,905 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:04,905 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 00:12:04,905 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:12:04,906 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:04,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1735094067, now seen corresponding path program 1 times [2025-04-14 00:12:04,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:04,906 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949523748] [2025-04-14 00:12:04,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:04,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:04,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-14 00:12:05,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-14 00:12:05,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:05,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:05,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:05,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:05,320 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949523748] [2025-04-14 00:12:05,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949523748] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:05,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:12:05,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-14 00:12:05,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174419684] [2025-04-14 00:12:05,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:05,321 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:12:05,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:05,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:12:05,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:12:05,324 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 91 [2025-04-14 00:12:05,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 73 transitions, 150 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) [2025-04-14 00:12:05,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:05,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 91 [2025-04-14 00:12:05,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:05,730 INFO L116 PetriNetUnfolderBase]: 1027/1494 cut-off events. [2025-04-14 00:12:05,730 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-14 00:12:05,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3002 conditions, 1494 events. 1027/1494 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 5068 event pairs, 572 based on Foata normal form. 0/1064 useless extension candidates. Maximal degree in co-relation 2999. Up to 1476 conditions per place. [2025-04-14 00:12:05,740 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 71 selfloop transitions, 2 changer transitions 0/74 dead transitions. [2025-04-14 00:12:05,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 74 transitions, 298 flow [2025-04-14 00:12:05,740 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:12:05,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:12:05,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2025-04-14 00:12:05,742 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.3076923076923077 [2025-04-14 00:12:05,742 INFO L175 Difference]: Start difference. First operand has 52 places, 73 transitions, 150 flow. Second operand 3 states and 84 transitions. [2025-04-14 00:12:05,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 74 transitions, 298 flow [2025-04-14 00:12:05,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 74 transitions, 298 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-14 00:12:05,745 INFO L231 Difference]: Finished difference. Result has 54 places, 74 transitions, 164 flow [2025-04-14 00:12:05,745 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=54, PETRI_TRANSITIONS=74} [2025-04-14 00:12:05,746 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, -2 predicate places. [2025-04-14 00:12:05,746 INFO L485 AbstractCegarLoop]: Abstraction has has 54 places, 74 transitions, 164 flow [2025-04-14 00:12:05,746 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) [2025-04-14 00:12:05,746 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:05,746 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:05,746 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 00:12:05,746 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:12:05,747 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:05,747 INFO L85 PathProgramCache]: Analyzing trace with hash 2005233902, now seen corresponding path program 1 times [2025-04-14 00:12:05,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:05,747 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182024612] [2025-04-14 00:12:05,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:05,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:05,803 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-14 00:12:05,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-14 00:12:05,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:05,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 00:12:05,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:05,878 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182024612] [2025-04-14 00:12:05,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182024612] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:05,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:12:05,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 00:12:05,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893521980] [2025-04-14 00:12:05,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:05,878 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:12:05,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:05,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:12:05,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:12:05,879 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 91 [2025-04-14 00:12:05,880 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 74 transitions, 164 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) [2025-04-14 00:12:05,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:05,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 91 [2025-04-14 00:12:05,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:06,272 INFO L116 PetriNetUnfolderBase]: 1227/1810 cut-off events. [2025-04-14 00:12:06,272 INFO L117 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-04-14 00:12:06,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3613 conditions, 1810 events. 1227/1810 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 6800 event pairs, 572 based on Foata normal form. 0/1332 useless extension candidates. Maximal degree in co-relation 3608. Up to 1477 conditions per place. [2025-04-14 00:12:06,280 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 98 selfloop transitions, 2 changer transitions 0/101 dead transitions. [2025-04-14 00:12:06,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 101 transitions, 419 flow [2025-04-14 00:12:06,281 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:12:06,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:12:06,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2025-04-14 00:12:06,282 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.40293040293040294 [2025-04-14 00:12:06,282 INFO L175 Difference]: Start difference. First operand has 54 places, 74 transitions, 164 flow. Second operand 3 states and 110 transitions. [2025-04-14 00:12:06,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 101 transitions, 419 flow [2025-04-14 00:12:06,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 101 transitions, 415 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-04-14 00:12:06,284 INFO L231 Difference]: Finished difference. Result has 56 places, 75 transitions, 174 flow [2025-04-14 00:12:06,284 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=56, PETRI_TRANSITIONS=75} [2025-04-14 00:12:06,284 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 0 predicate places. [2025-04-14 00:12:06,284 INFO L485 AbstractCegarLoop]: Abstraction has has 56 places, 75 transitions, 174 flow [2025-04-14 00:12:06,284 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) [2025-04-14 00:12:06,284 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:06,284 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:06,285 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-14 00:12:06,285 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-04-14 00:12:06,285 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:06,285 INFO L85 PathProgramCache]: Analyzing trace with hash 2005174320, now seen corresponding path program 1 times [2025-04-14 00:12:06,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:06,285 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856450034] [2025-04-14 00:12:06,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:06,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:06,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-14 00:12:06,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-14 00:12:06,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:06,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:06,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:06,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:06,901 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856450034] [2025-04-14 00:12:06,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856450034] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 00:12:06,902 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211796339] [2025-04-14 00:12:06,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:06,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:06,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:12:06,904 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) [2025-04-14 00:12:06,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-14 00:12:07,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-14 00:12:07,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-14 00:12:07,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:07,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:07,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-04-14 00:12:07,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 00:12:07,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 00:12:07,355 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-14 00:12:07,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211796339] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:07,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-14 00:12:07,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2025-04-14 00:12:07,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840672218] [2025-04-14 00:12:07,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:07,355 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:12:07,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:07,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:12:07,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:12:07,362 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 91 [2025-04-14 00:12:07,363 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 75 transitions, 174 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) [2025-04-14 00:12:07,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:07,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 91 [2025-04-14 00:12:07,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:07,667 INFO L116 PetriNetUnfolderBase]: 1170/1735 cut-off events. [2025-04-14 00:12:07,667 INFO L117 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2025-04-14 00:12:07,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3625 conditions, 1735 events. 1170/1735 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6755 event pairs, 162 based on Foata normal form. 29/1364 useless extension candidates. Maximal degree in co-relation 3619. Up to 1206 conditions per place. [2025-04-14 00:12:07,671 INFO L140 encePairwiseOnDemand]: 87/91 looper letters, 0 selfloop transitions, 0 changer transitions 97/97 dead transitions. [2025-04-14 00:12:07,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 97 transitions, 411 flow [2025-04-14 00:12:07,672 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:12:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:12:07,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2025-04-14 00:12:07,673 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2025-04-14 00:12:07,673 INFO L175 Difference]: Start difference. First operand has 56 places, 75 transitions, 174 flow. Second operand 3 states and 104 transitions. [2025-04-14 00:12:07,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 97 transitions, 411 flow [2025-04-14 00:12:07,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 97 transitions, 409 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-14 00:12:07,675 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2025-04-14 00:12:07,675 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2025-04-14 00:12:07,676 INFO L279 CegarLoopForPetriNet]: 56 programPoint places, 0 predicate places. [2025-04-14 00:12:07,676 INFO L485 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2025-04-14 00:12:07,676 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) [2025-04-14 00:12:07,678 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2025-04-14 00:12:07,678 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2025-04-14 00:12:07,678 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2025-04-14 00:12:07,679 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2025-04-14 00:12:07,679 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2025-04-14 00:12:07,679 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2025-04-14 00:12:07,679 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2025-04-14 00:12:07,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-04-14 00:12:07,879 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 [2025-04-14 00:12:07,880 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-04-14 00:12:07,883 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 00:12:07,884 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 00:12:07,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 12:12:07 BasicIcfg [2025-04-14 00:12:07,887 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 00:12:07,887 INFO L158 Benchmark]: Toolchain (without parser) took 11710.89ms. Allocated memory was 125.8MB in the beginning and 364.9MB in the end (delta: 239.1MB). Free memory was 77.2MB in the beginning and 128.4MB in the end (delta: -51.2MB). Peak memory consumption was 189.3MB. Max. memory is 8.0GB. [2025-04-14 00:12:07,887 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:12:07,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4037.07ms. Allocated memory was 125.8MB in the beginning and 260.0MB in the end (delta: 134.2MB). Free memory was 77.0MB in the beginning and 132.5MB in the end (delta: -55.5MB). Peak memory consumption was 99.8MB. Max. memory is 8.0GB. [2025-04-14 00:12:07,888 INFO L158 Benchmark]: Boogie Procedure Inliner took 140.07ms. Allocated memory is still 260.0MB. Free memory was 132.5MB in the beginning and 119.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-14 00:12:07,889 INFO L158 Benchmark]: Boogie Preprocessor took 98.70ms. Allocated memory is still 260.0MB. Free memory was 119.9MB in the beginning and 108.8MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-14 00:12:07,889 INFO L158 Benchmark]: IcfgBuilder took 2911.07ms. Allocated memory was 260.0MB in the beginning and 520.1MB in the end (delta: 260.0MB). Free memory was 108.8MB in the beginning and 290.5MB in the end (delta: -181.8MB). Peak memory consumption was 94.5MB. Max. memory is 8.0GB. [2025-04-14 00:12:07,889 INFO L158 Benchmark]: TraceAbstraction took 4518.94ms. Allocated memory was 520.1MB in the beginning and 364.9MB in the end (delta: -155.2MB). Free memory was 290.5MB in the beginning and 128.4MB in the end (delta: 162.1MB). Peak memory consumption was 7.6MB. Max. memory is 8.0GB. [2025-04-14 00:12:07,890 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4037.07ms. Allocated memory was 125.8MB in the beginning and 260.0MB in the end (delta: 134.2MB). Free memory was 77.0MB in the beginning and 132.5MB in the end (delta: -55.5MB). Peak memory consumption was 99.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 140.07ms. Allocated memory is still 260.0MB. Free memory was 132.5MB in the beginning and 119.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 98.70ms. Allocated memory is still 260.0MB. Free memory was 119.9MB in the beginning and 108.8MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgBuilder took 2911.07ms. Allocated memory was 260.0MB in the beginning and 520.1MB in the end (delta: 260.0MB). Free memory was 108.8MB in the beginning and 290.5MB in the end (delta: -181.8MB). Peak memory consumption was 94.5MB. Max. memory is 8.0GB. * TraceAbstraction took 4518.94ms. Allocated memory was 520.1MB in the beginning and 364.9MB in the end (delta: -155.2MB). Free memory was 290.5MB in the beginning and 128.4MB in the end (delta: 162.1MB). Peak memory consumption was 7.6MB. 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 87 locations, 142 edges, 7 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: 4.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 534 IncrementalHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 1 mSDtfsCounter, 534 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=183occurred 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, 1.4s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 1 NumberOfNonLiveVariables, 669 ConjunctsInSsa, 9 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 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-14 00:12:07,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...