/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 FINITE_AUTOMATA -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 17:25:28,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 17:25:28,638 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 17:25:28,642 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 17:25:28,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 17:25:28,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 17:25:28,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 17:25:28,665 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 17:25:28,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 17:25:28,665 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 17:25:28,665 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 17:25:28,665 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 17:25:28,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 17:25:28,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 17:25:28,666 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 17:25:28,667 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 17:25:28,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 17:25:28,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 17:25:28,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 17:25:28,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:25:28,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 17:25:28,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 17:25:28,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 17:25:28,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 17:25:28,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:25:28,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 17:25:28,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 17:25:28,667 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 17:25:28,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 17:25:28,669 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 17:25:28,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 17:25:28,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 17:25:28,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 17:25:28,669 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 17:25:28,669 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 -> FINITE_AUTOMATA [2025-04-13 17:25:28,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 17:25:28,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 17:25:28,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 17:25:28,883 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 17:25:28,883 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 17:25:28,885 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2025-04-13 17:25:30,175 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22c85c008/62d072de40024a2a8d3f0fa997413175/FLAG210bbb503 [2025-04-13 17:25:30,595 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 17:25:30,596 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2025-04-13 17:25:30,644 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22c85c008/62d072de40024a2a8d3f0fa997413175/FLAG210bbb503 [2025-04-13 17:25:31,176 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22c85c008/62d072de40024a2a8d3f0fa997413175 [2025-04-13 17:25:31,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 17:25:31,179 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 17:25:31,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 17:25:31,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 17:25:31,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 17:25:31,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 05:25:31" (1/1) ... [2025-04-13 17:25:31,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4685d9be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:31, skipping insertion in model container [2025-04-13 17:25:31,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 05:25:31" (1/1) ... [2025-04-13 17:25:31,257 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 17:25:31,596 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i[5520,5533] [2025-04-13 17:25:36,853 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 17:25:36,854 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 17:25:36,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 17:25:36,937 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 17:25:36,954 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i[5520,5533] [2025-04-13 17:25:37,028 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 17:25:37,029 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 17:25:37,029 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 17:25:37,029 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 17:25:37,105 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-04-13 17:25:37,134 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 17:25:37,134 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 17:25:37,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 17:25:37,452 INFO L204 MainTranslator]: Completed translation [2025-04-13 17:25:37,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37 WrapperNode [2025-04-13 17:25:37,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 17:25:37,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 17:25:37,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 17:25:37,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 17:25:37,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,606 INFO L138 Inliner]: procedures = 1392, calls = 1531, calls flagged for inlining = 397, calls inlined = 72, statements flattened = 813 [2025-04-13 17:25:37,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 17:25:37,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 17:25:37,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 17:25:37,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 17:25:37,614 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,621 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,655 INFO L175 MemorySlicer]: Split 69 memory accesses to 10 slices as follows [2, 1, 5, 7, 9, 10, 25, 4, 4, 2]. 36 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, 1, 2]. [2025-04-13 17:25:37,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,685 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,694 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,701 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,716 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 17:25:37,717 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 17:25:37,717 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 17:25:37,717 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 17:25:37,718 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (1/1) ... [2025-04-13 17:25:37,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 17:25:37,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 17:25:37,750 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 17:25:37,752 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 17:25:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 17:25:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 17:25:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-13 17:25:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-13 17:25:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-04-13 17:25:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-04-13 17:25:37,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 17:25:37,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-13 17:25:37,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_configure [2025-04-13 17:25:37,771 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_configure [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2025-04-13 17:25:37,771 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2025-04-13 17:25:37,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 17:25:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 17:25:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 17:25:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-13 17:25:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-04-13 17:25:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-04-13 17:25:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-04-13 17:25:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-04-13 17:25:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-04-13 17:25:37,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-04-13 17:25:37,773 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 17:25:38,112 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 17:25:38,113 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 17:25:38,875 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 17:25:38,876 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 17:25:38,876 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 17:25:40,334 INFO L313 CfgBuilder]: Removed 11 assume(true) statements. [2025-04-13 17:25:40,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 05:25:40 BoogieIcfgContainer [2025-04-13 17:25:40,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 17:25:40,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 17:25:40,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 17:25:40,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 17:25:40,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 05:25:31" (1/3) ... [2025-04-13 17:25:40,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9dbb0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 05:25:40, skipping insertion in model container [2025-04-13 17:25:40,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 05:25:37" (2/3) ... [2025-04-13 17:25:40,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9dbb0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 05:25:40, skipping insertion in model container [2025-04-13 17:25:40,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 05:25:40" (3/3) ... [2025-04-13 17:25:40,341 INFO L128 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i [2025-04-13 17:25:40,354 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 17:25:40,357 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_pc8736x_gpio_pc8736x_gpio_configure_pc8736x_gpio_set.i that has 3 procedures, 51 locations, 85 edges, 1 initial locations, 14 loop locations, and 2 error locations. [2025-04-13 17:25:40,358 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 17:25:40,511 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 17:25:40,543 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 87 transitions, 188 flow [2025-04-13 17:25:40,594 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 408 states, 405 states have (on average 3.5135802469135804) internal successors, (1423), 407 states have internal predecessors, (1423), 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 17:25:40,616 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 17:25:40,624 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=FINITE_AUTOMATA, 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;@39f15c50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 17:25:40,625 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-13 17:25:40,627 INFO L278 IsEmpty]: Start isEmpty. Operand has 408 states, 405 states have (on average 3.5135802469135804) internal successors, (1423), 407 states have internal predecessors, (1423), 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 17:25:40,632 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-04-13 17:25:40,632 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:25:40,632 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-04-13 17:25:40,633 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 17:25:40,637 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:25:40,637 INFO L85 PathProgramCache]: Analyzing trace with hash 2317453, now seen corresponding path program 1 times [2025-04-13 17:25:40,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:25:40,645 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994936424] [2025-04-13 17:25:40,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:25:40,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:25:40,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-13 17:25:40,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-13 17:25:40,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:25:40,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:25:41,444 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 17:25:41,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:25:41,445 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994936424] [2025-04-13 17:25:41,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994936424] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:25:41,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:25:41,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-13 17:25:41,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353822055] [2025-04-13 17:25:41,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:25:41,452 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-13 17:25:41,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:25:41,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-13 17:25:41,466 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 17:25:41,469 INFO L87 Difference]: Start difference. First operand has 408 states, 405 states have (on average 3.5135802469135804) internal successors, (1423), 407 states have internal predecessors, (1423), 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) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 17:25:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:25:41,655 INFO L93 Difference]: Finished difference Result 813 states and 2842 transitions. [2025-04-13 17:25:41,659 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 17:25:41,660 INFO L79 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) Word has length 3 [2025-04-13 17:25:41,660 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:25:41,673 INFO L225 Difference]: With dead ends: 813 [2025-04-13 17:25:41,673 INFO L226 Difference]: Without dead ends: 405 [2025-04-13 17:25:41,677 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 17:25:41,678 INFO L437 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 17:25:41,679 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 17:25:41,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2025-04-13 17:25:41,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2025-04-13 17:25:41,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 3.26980198019802) internal successors, (1321), 404 states have internal predecessors, (1321), 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 17:25:41,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 1321 transitions. [2025-04-13 17:25:41,747 INFO L79 Accepts]: Start accepts. Automaton has 405 states and 1321 transitions. Word has length 3 [2025-04-13 17:25:41,749 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:25:41,749 INFO L485 AbstractCegarLoop]: Abstraction has 405 states and 1321 transitions. [2025-04-13 17:25:41,749 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 17:25:41,749 INFO L278 IsEmpty]: Start isEmpty. Operand 405 states and 1321 transitions. [2025-04-13 17:25:41,750 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-04-13 17:25:41,750 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:25:41,751 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:25:41,751 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 17:25:41,751 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 17:25:41,751 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:25:41,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1172548212, now seen corresponding path program 1 times [2025-04-13 17:25:41,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:25:41,752 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912108717] [2025-04-13 17:25:41,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:25:41,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:25:41,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-04-13 17:25:41,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-04-13 17:25:41,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:25:41,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:25:42,202 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 17:25:42,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:25:42,202 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912108717] [2025-04-13 17:25:42,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912108717] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:25:42,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:25:42,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 17:25:42,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739983581] [2025-04-13 17:25:42,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:25:42,205 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 17:25:42,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:25:42,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 17:25:42,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:25:42,205 INFO L87 Difference]: Start difference. First operand 405 states and 1321 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 17:25:42,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:25:42,393 INFO L93 Difference]: Finished difference Result 809 states and 2641 transitions. [2025-04-13 17:25:42,393 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 17:25:42,393 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) Word has length 11 [2025-04-13 17:25:42,393 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:25:42,399 INFO L225 Difference]: With dead ends: 809 [2025-04-13 17:25:42,400 INFO L226 Difference]: Without dead ends: 406 [2025-04-13 17:25:42,401 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:25:42,401 INFO L437 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 17:25:42,401 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 17:25:42,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2025-04-13 17:25:42,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2025-04-13 17:25:42,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 3.2641975308641977) internal successors, (1322), 405 states have internal predecessors, (1322), 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 17:25:42,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 1322 transitions. [2025-04-13 17:25:42,426 INFO L79 Accepts]: Start accepts. Automaton has 406 states and 1322 transitions. Word has length 11 [2025-04-13 17:25:42,426 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:25:42,426 INFO L485 AbstractCegarLoop]: Abstraction has 406 states and 1322 transitions. [2025-04-13 17:25:42,426 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 17:25:42,426 INFO L278 IsEmpty]: Start isEmpty. Operand 406 states and 1322 transitions. [2025-04-13 17:25:42,431 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-04-13 17:25:42,432 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:25:42,432 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:25:42,432 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 17:25:42,432 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 17:25:42,432 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:25:42,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1497661263, now seen corresponding path program 1 times [2025-04-13 17:25:42,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:25:42,432 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810137110] [2025-04-13 17:25:42,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:25:42,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:25:42,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-13 17:25:42,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-13 17:25:42,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:25:42,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:25:42,873 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 17:25:42,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:25:42,874 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810137110] [2025-04-13 17:25:42,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810137110] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 17:25:42,874 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064338109] [2025-04-13 17:25:42,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:25:42,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 17:25:42,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 17:25:42,876 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 17:25:42,878 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 17:25:43,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-04-13 17:25:43,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-04-13 17:25:43,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:25:43,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:25:43,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-13 17:25:43,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 17:25:43,438 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 17:25:43,439 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-13 17:25:43,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064338109] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:25:43,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-13 17:25:43,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2025-04-13 17:25:43,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268682501] [2025-04-13 17:25:43,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:25:43,439 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 17:25:43,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:25:43,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 17:25:43,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-13 17:25:43,440 INFO L87 Difference]: Start difference. First operand 406 states and 1322 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 17:25:43,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:25:43,777 INFO L93 Difference]: Finished difference Result 798 states and 2619 transitions. [2025-04-13 17:25:43,778 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 17:25:43,778 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2025-04-13 17:25:43,778 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:25:43,781 INFO L225 Difference]: With dead ends: 798 [2025-04-13 17:25:43,781 INFO L226 Difference]: Without dead ends: 402 [2025-04-13 17:25:43,781 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-13 17:25:43,782 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 84 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 17:25:43,782 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 17:25:43,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2025-04-13 17:25:43,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 402. [2025-04-13 17:25:43,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 401 states have (on average 3.2718204488778055) internal successors, (1312), 401 states have internal predecessors, (1312), 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 17:25:43,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 1312 transitions. [2025-04-13 17:25:43,807 INFO L79 Accepts]: Start accepts. Automaton has 402 states and 1312 transitions. Word has length 12 [2025-04-13 17:25:43,807 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:25:43,807 INFO L485 AbstractCegarLoop]: Abstraction has 402 states and 1312 transitions. [2025-04-13 17:25:43,807 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 17:25:43,807 INFO L278 IsEmpty]: Start isEmpty. Operand 402 states and 1312 transitions. [2025-04-13 17:25:43,808 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-04-13 17:25:43,808 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:25:43,808 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:25:43,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-04-13 17:25:44,008 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 17:25:44,009 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 17:25:44,009 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:25:44,009 INFO L85 PathProgramCache]: Analyzing trace with hash 818716049, now seen corresponding path program 1 times [2025-04-13 17:25:44,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:25:44,009 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959573608] [2025-04-13 17:25:44,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:25:44,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:25:44,071 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-13 17:25:44,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-13 17:25:44,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:25:44,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:25:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-13 17:25:44,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:25:44,195 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959573608] [2025-04-13 17:25:44,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959573608] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 17:25:44,195 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854637951] [2025-04-13 17:25:44,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:25:44,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 17:25:44,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 17:25:44,197 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 17:25:44,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-13 17:25:44,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-13 17:25:44,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-13 17:25:44,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:25:44,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:25:44,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-13 17:25:44,559 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 17:25:44,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-13 17:25:44,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 17:25:44,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-13 17:25:44,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854637951] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 17:25:44,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 17:25:44,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-04-13 17:25:44,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394234353] [2025-04-13 17:25:44,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 17:25:44,587 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-13 17:25:44,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:25:44,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-13 17:25:44,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-04-13 17:25:44,588 INFO L87 Difference]: Start difference. First operand 402 states and 1312 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 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 17:25:44,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:25:44,871 INFO L93 Difference]: Finished difference Result 796 states and 2613 transitions. [2025-04-13 17:25:44,871 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 17:25:44,871 INFO L79 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 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) Word has length 18 [2025-04-13 17:25:44,872 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:25:44,876 INFO L225 Difference]: With dead ends: 796 [2025-04-13 17:25:44,876 INFO L226 Difference]: Without dead ends: 405 [2025-04-13 17:25:44,876 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-04-13 17:25:44,878 INFO L437 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 17:25:44,878 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 17:25:44,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2025-04-13 17:25:44,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2025-04-13 17:25:44,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 3.254950495049505) internal successors, (1315), 404 states have internal predecessors, (1315), 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 17:25:44,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 1315 transitions. [2025-04-13 17:25:44,893 INFO L79 Accepts]: Start accepts. Automaton has 405 states and 1315 transitions. Word has length 18 [2025-04-13 17:25:44,893 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:25:44,893 INFO L485 AbstractCegarLoop]: Abstraction has 405 states and 1315 transitions. [2025-04-13 17:25:44,893 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 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 17:25:44,893 INFO L278 IsEmpty]: Start isEmpty. Operand 405 states and 1315 transitions. [2025-04-13 17:25:44,894 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-04-13 17:25:44,894 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:25:44,894 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:25:44,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-13 17:25:45,094 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-04-13 17:25:45,095 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 17:25:45,095 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:25:45,095 INFO L85 PathProgramCache]: Analyzing trace with hash 557263979, now seen corresponding path program 2 times [2025-04-13 17:25:45,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:25:45,095 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236416042] [2025-04-13 17:25:45,095 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 17:25:45,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:25:45,143 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-04-13 17:25:45,182 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 21 statements. [2025-04-13 17:25:45,182 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 17:25:45,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:25:45,355 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-04-13 17:25:45,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:25:45,355 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236416042] [2025-04-13 17:25:45,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236416042] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:25:45,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:25:45,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 17:25:45,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303540486] [2025-04-13 17:25:45,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:25:45,356 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 17:25:45,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:25:45,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 17:25:45,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:25:45,356 INFO L87 Difference]: Start difference. First operand 405 states and 1315 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 17:25:45,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:25:45,511 INFO L93 Difference]: Finished difference Result 804 states and 2621 transitions. [2025-04-13 17:25:45,511 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 17:25:45,511 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) Word has length 21 [2025-04-13 17:25:45,511 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:25:45,514 INFO L225 Difference]: With dead ends: 804 [2025-04-13 17:25:45,514 INFO L226 Difference]: Without dead ends: 406 [2025-04-13 17:25:45,515 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:25:45,515 INFO L437 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 17:25:45,515 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 17:25:45,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2025-04-13 17:25:45,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2025-04-13 17:25:45,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 3.2493827160493827) internal successors, (1316), 405 states have internal predecessors, (1316), 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 17:25:45,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 1316 transitions. [2025-04-13 17:25:45,526 INFO L79 Accepts]: Start accepts. Automaton has 406 states and 1316 transitions. Word has length 21 [2025-04-13 17:25:45,526 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:25:45,526 INFO L485 AbstractCegarLoop]: Abstraction has 406 states and 1316 transitions. [2025-04-13 17:25:45,526 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 17:25:45,527 INFO L278 IsEmpty]: Start isEmpty. Operand 406 states and 1316 transitions. [2025-04-13 17:25:45,527 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-04-13 17:25:45,527 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:25:45,527 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:25:45,527 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 17:25:45,527 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 17:25:45,527 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:25:45,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1777637929, now seen corresponding path program 1 times [2025-04-13 17:25:45,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:25:45,528 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979938593] [2025-04-13 17:25:45,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:25:45,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:25:45,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-13 17:25:45,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-13 17:25:45,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:25:45,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:25:45,804 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-04-13 17:25:45,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:25:45,804 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979938593] [2025-04-13 17:25:45,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979938593] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 17:25:45,804 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247108634] [2025-04-13 17:25:45,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 17:25:45,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 17:25:45,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 17:25:45,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 17:25:45,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-13 17:25:46,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-13 17:25:46,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-13 17:25:46,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 17:25:46,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:25:46,258 INFO L256 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-04-13 17:25:46,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 17:25:46,287 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-04-13 17:25:46,287 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 17:25:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-04-13 17:25:46,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247108634] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 17:25:46,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 17:25:46,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 4] total 9 [2025-04-13 17:25:46,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192871036] [2025-04-13 17:25:46,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 17:25:46,327 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-13 17:25:46,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:25:46,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-13 17:25:46,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-04-13 17:25:46,328 INFO L87 Difference]: Start difference. First operand 406 states and 1316 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:25:46,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:25:46,682 INFO L93 Difference]: Finished difference Result 815 states and 2640 transitions. [2025-04-13 17:25:46,682 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-13 17:25:46,682 INFO L79 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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) Word has length 22 [2025-04-13 17:25:46,682 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:25:46,686 INFO L225 Difference]: With dead ends: 815 [2025-04-13 17:25:46,686 INFO L226 Difference]: Without dead ends: 412 [2025-04-13 17:25:46,688 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2025-04-13 17:25:46,689 INFO L437 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 17:25:46,689 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 17:25:46,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2025-04-13 17:25:46,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2025-04-13 17:25:46,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 3.21654501216545) internal successors, (1322), 411 states have internal predecessors, (1322), 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 17:25:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1322 transitions. [2025-04-13 17:25:46,706 INFO L79 Accepts]: Start accepts. Automaton has 412 states and 1322 transitions. Word has length 22 [2025-04-13 17:25:46,706 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:25:46,706 INFO L485 AbstractCegarLoop]: Abstraction has 412 states and 1322 transitions. [2025-04-13 17:25:46,706 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:25:46,706 INFO L278 IsEmpty]: Start isEmpty. Operand 412 states and 1322 transitions. [2025-04-13 17:25:46,706 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-04-13 17:25:46,706 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 17:25:46,706 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 17:25:46,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-13 17:25:46,911 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 17:25:46,911 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 17:25:46,911 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 17:25:46,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1812915802, now seen corresponding path program 2 times [2025-04-13 17:25:46,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 17:25:46,911 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858646279] [2025-04-13 17:25:46,911 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 17:25:46,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 17:25:46,961 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 28 statements into 2 equivalence classes. [2025-04-13 17:25:47,027 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 16 of 28 statements. [2025-04-13 17:25:47,028 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 17:25:47,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 17:25:47,335 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-04-13 17:25:47,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 17:25:47,335 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858646279] [2025-04-13 17:25:47,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858646279] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 17:25:47,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 17:25:47,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 17:25:47,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253431124] [2025-04-13 17:25:47,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 17:25:47,336 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 17:25:47,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 17:25:47,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 17:25:47,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:25:47,336 INFO L87 Difference]: Start difference. First operand 412 states and 1322 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 17:25:47,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 17:25:47,506 INFO L93 Difference]: Finished difference Result 412 states and 1322 transitions. [2025-04-13 17:25:47,506 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 17:25:47,507 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) Word has length 28 [2025-04-13 17:25:47,507 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 17:25:47,508 INFO L225 Difference]: With dead ends: 412 [2025-04-13 17:25:47,508 INFO L226 Difference]: Without dead ends: 0 [2025-04-13 17:25:47,508 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 17:25:47,509 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 17:25:47,509 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 17:25:47,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-04-13 17:25:47,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-04-13 17:25:47,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 17:25:47,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-04-13 17:25:47,511 INFO L79 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2025-04-13 17:25:47,511 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 17:25:47,511 INFO L485 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-13 17:25:47,511 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 17:25:47,511 INFO L278 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-04-13 17:25:47,511 INFO L284 IsEmpty]: Finished isEmpty. No accepting run. [2025-04-13 17:25:47,513 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-04-13 17:25:47,513 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2025-04-13 17:25:47,513 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-04-13 17:25:47,513 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2025-04-13 17:25:47,513 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2025-04-13 17:25:47,513 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-13 17:25:47,516 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1] [2025-04-13 17:25:47,519 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 17:25:47,519 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 17:25:47,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 05:25:47 BasicIcfg [2025-04-13 17:25:47,522 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 17:25:47,524 INFO L158 Benchmark]: Toolchain (without parser) took 16343.72ms. Allocated memory was 155.2MB in the beginning and 696.3MB in the end (delta: 541.1MB). Free memory was 97.1MB in the beginning and 416.7MB in the end (delta: -319.6MB). Peak memory consumption was 218.4MB. Max. memory is 8.0GB. [2025-04-13 17:25:47,524 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:25:47,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6274.79ms. Allocated memory was 155.2MB in the beginning and 415.2MB in the end (delta: 260.0MB). Free memory was 97.1MB in the beginning and 339.6MB in the end (delta: -242.5MB). Peak memory consumption was 110.8MB. Max. memory is 8.0GB. [2025-04-13 17:25:47,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 151.81ms. Allocated memory is still 415.2MB. Free memory was 339.6MB in the beginning and 327.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-13 17:25:47,525 INFO L158 Benchmark]: Boogie Preprocessor took 108.78ms. Allocated memory is still 415.2MB. Free memory was 327.0MB in the beginning and 315.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-13 17:25:47,525 INFO L158 Benchmark]: RCFGBuilder took 2617.98ms. Allocated memory is still 415.2MB. Free memory was 315.2MB in the beginning and 105.7MB in the end (delta: 209.5MB). Peak memory consumption was 257.0MB. Max. memory is 8.0GB. [2025-04-13 17:25:47,525 INFO L158 Benchmark]: TraceAbstraction took 7186.09ms. Allocated memory was 415.2MB in the beginning and 696.3MB in the end (delta: 281.0MB). Free memory was 103.6MB in the beginning and 416.7MB in the end (delta: -313.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 17:25:47,526 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 6274.79ms. Allocated memory was 155.2MB in the beginning and 415.2MB in the end (delta: 260.0MB). Free memory was 97.1MB in the beginning and 339.6MB in the end (delta: -242.5MB). Peak memory consumption was 110.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 151.81ms. Allocated memory is still 415.2MB. Free memory was 339.6MB in the beginning and 327.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 108.78ms. Allocated memory is still 415.2MB. Free memory was 327.0MB in the beginning and 315.2MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 2617.98ms. Allocated memory is still 415.2MB. Free memory was 315.2MB in the beginning and 105.7MB in the end (delta: 209.5MB). Peak memory consumption was 257.0MB. Max. memory is 8.0GB. * TraceAbstraction took 7186.09ms. Allocated memory was 415.2MB in the beginning and 696.3MB in the end (delta: 281.0MB). Free memory was 103.6MB in the beginning and 416.7MB in the end (delta: -313.1MB). There was no memory consumed. 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: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 175]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 175]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 81 locations, 134 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1263 IncrementalHoareTripleChecker+Invalid, 1275 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 5 mSDtfsCounter, 1263 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=412occurred in iteration=6, InterpolantAutomatonStates: 29, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 167 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 195 ConstructedInterpolants, 0 QuantifiedInterpolants, 439 SizeOfPredicates, 3 NumberOfNonLiveVariables, 2273 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 77/85 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-13 17:25:47,540 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...