/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis FINITE_AUTOMATA --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 21:51:44,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 21:51:44,474 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 21:51:44,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 21:51:44,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 21:51:44,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 21:51:44,501 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 21:51:44,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 21:51:44,502 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 21:51:44,502 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 21:51:44,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 21:51:44,503 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 21:51:44,503 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 21:51:44,503 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 21:51:44,504 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 21:51:44,504 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 21:51:44,505 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 21:51:44,505 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 21:51:44,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:51:44,505 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:51:44,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:51:44,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:51:44,505 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 21:51:44,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:51:44,505 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:51:44,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:51:44,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:51:44,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 21:51:44,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 21:51:44,505 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 21:51:44,506 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 21:51:44,506 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 21:51:44,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 21:51:44,506 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 21:51:44,506 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 21:51:44,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 21:51:44,506 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-13 21:51:44,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 21:51:44,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 21:51:44,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 21:51:44,732 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 21:51:44,734 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 21:51:44,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2025-04-13 21:51:46,053 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e447e3cb/f0907608603a4c279aa12badff9fe222/FLAGd1d6ee6d3 [2025-04-13 21:51:46,423 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 21:51:46,423 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2025-04-13 21:51:46,462 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e447e3cb/f0907608603a4c279aa12badff9fe222/FLAGd1d6ee6d3 [2025-04-13 21:51:47,169 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e447e3cb/f0907608603a4c279aa12badff9fe222 [2025-04-13 21:51:47,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 21:51:47,172 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 21:51:47,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 21:51:47,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 21:51:47,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 21:51:47,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:51:47" (1/1) ... [2025-04-13 21:51:47,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35900498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:47, skipping insertion in model container [2025-04-13 21:51:47,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:51:47" (1/1) ... [2025-04-13 21:51:47,278 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 21:51:47,582 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i[5520,5533] [2025-04-13 21:51:50,455 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 21:51:50,455 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 21:51:50,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:51:50,519 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 21:51:50,535 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i[5520,5533] [2025-04-13 21:51:50,625 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 21:51:50,626 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 21:51:50,626 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 21:51:50,626 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 21:51:50,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-04-13 21:51:50,770 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 21:51:50,771 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 21:51:50,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:51:51,139 INFO L204 MainTranslator]: Completed translation [2025-04-13 21:51:51,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51 WrapperNode [2025-04-13 21:51:51,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 21:51:51,142 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 21:51:51,142 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 21:51:51,142 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 21:51:51,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,273 INFO L138 Inliner]: procedures = 1392, calls = 1539, calls flagged for inlining = 397, calls inlined = 58, statements flattened = 814 [2025-04-13 21:51:51,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 21:51:51,276 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 21:51:51,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 21:51:51,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 21:51:51,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,293 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,329 INFO L175 MemorySlicer]: Split 74 memory accesses to 10 slices as follows [2, 1, 2, 11, 13, 10, 25, 4, 2, 4]. 34 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 7 writes are split as follows [0, 0, 0, 3, 0, 1, 0, 0, 2, 1]. [2025-04-13 21:51:51,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,329 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,360 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,362 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,375 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 21:51:51,401 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-13 21:51:51,401 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-13 21:51:51,401 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-13 21:51:51,401 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (1/1) ... [2025-04-13 21:51:51,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:51:51,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:51:51,428 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 21:51:51,432 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 21:51:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 21:51:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 21:51:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-13 21:51:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-13 21:51:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-04-13 21:51:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-04-13 21:51:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-04-13 21:51:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-04-13 21:51:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-04-13 21:51:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-04-13 21:51:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-13 21:51:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 21:51:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-13 21:51:51,454 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 21:51:51,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 21:51:51,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-13 21:51:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-04-13 21:51:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-04-13 21:51:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-04-13 21:51:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-04-13 21:51:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-04-13 21:51:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-04-13 21:51:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-04-13 21:51:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-04-13 21:51:51,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2025-04-13 21:51:51,456 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 21:51:51,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 21:51:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 21:51:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-13 21:51:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-04-13 21:51:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-04-13 21:51:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-04-13 21:51:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-04-13 21:51:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-04-13 21:51:51,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-04-13 21:51:51,458 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 21:51:51,850 INFO L256 CfgBuilder]: Building ICFG [2025-04-13 21:51:51,851 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 21:51:52,040 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,041 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6879: havoc pc8736x_gpio_current_#t~bitwise1138#1; [2025-04-13 21:51:52,530 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,530 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6713: havoc platform_device_add_#t~nondet1102#1; [2025-04-13 21:51:52,530 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,530 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,530 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-15: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,530 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-20: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,530 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-25: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,530 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-30: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,530 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6615: havoc alloc_chrdev_region_#t~nondet1085#1; [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6717: havoc platform_device_alloc_#t~ret1103#1.base, platform_device_alloc_#t~ret1103#1.offset; [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923-1: SUMMARY for call ULTIMATE.dealloc(pc8736x_gpio_init_~#devid~0#1.base, pc8736x_gpio_init_~#devid~0#1.offset); srcloc: null [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923: havoc pc8736x_gpio_init_~#devid~0#1.base, pc8736x_gpio_init_~#devid~0#1.offset; [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-8: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-16: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-24: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-32: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-40: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6633: havoc cdev_add_#t~nondet1088#1; [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6738: havoc register_chrdev_region_#t~nondet1106#1; [2025-04-13 21:51:52,531 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6607: havoc __request_region_#t~ret1083#1.base, __request_region_#t~ret1083#1.offset; [2025-04-13 21:51:52,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:52,598 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 21:51:52,598 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 21:51:52,598 INFO L318 CfgBuilder]: Performing block encoding [2025-04-13 21:51:54,239 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 21:51:54,240 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 09:51:54 BoogieIcfgContainer [2025-04-13 21:51:54,240 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-13 21:51:54,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 21:51:54,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 21:51:54,245 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 21:51:54,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 09:51:47" (1/3) ... [2025-04-13 21:51:54,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3a9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:51:54, skipping insertion in model container [2025-04-13 21:51:54,246 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:51" (2/3) ... [2025-04-13 21:51:54,246 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3a9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:51:54, skipping insertion in model container [2025-04-13 21:51:54,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 09:51:54" (3/3) ... [2025-04-13 21:51:54,247 INFO L128 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2025-04-13 21:51:54,258 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 21:51:54,261 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i that has 3 procedures, 63 locations, 99 edges, 1 initial locations, 17 loop locations, and 4 error locations. [2025-04-13 21:51:54,261 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 21:51:54,363 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 21:51:54,390 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 101 transitions, 216 flow [2025-04-13 21:51:54,449 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 845 states, 839 states have (on average 3.3134684147794995) internal successors, (2780), 844 states have internal predecessors, (2780), 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 21:51:54,468 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 21:51:54,475 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;@78ff5296, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 21:51:54,475 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-13 21:51:54,479 INFO L278 IsEmpty]: Start isEmpty. Operand has 845 states, 839 states have (on average 3.3134684147794995) internal successors, (2780), 844 states have internal predecessors, (2780), 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 21:51:54,483 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-04-13 21:51:54,483 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:54,483 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-04-13 21:51:54,484 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 6 more)] === [2025-04-13 21:51:54,488 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:54,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2068432, now seen corresponding path program 1 times [2025-04-13 21:51:54,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:54,493 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316553420] [2025-04-13 21:51:54,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:54,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:54,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-13 21:51:54,830 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-13 21:51:54,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:54,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:55,264 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 21:51:55,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:55,265 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316553420] [2025-04-13 21:51:55,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316553420] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:51:55,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:51:55,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-13 21:51:55,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785833953] [2025-04-13 21:51:55,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:51:55,271 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-13 21:51:55,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:55,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-13 21:51:55,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 21:51:55,288 INFO L87 Difference]: Start difference. First operand has 845 states, 839 states have (on average 3.3134684147794995) internal successors, (2780), 844 states have internal predecessors, (2780), 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 21:51:55,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:55,501 INFO L93 Difference]: Finished difference Result 1687 states and 5556 transitions. [2025-04-13 21:51:55,502 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 21:51:55,503 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 21:51:55,503 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:55,517 INFO L225 Difference]: With dead ends: 1687 [2025-04-13 21:51:55,518 INFO L226 Difference]: Without dead ends: 844 [2025-04-13 21:51:55,522 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 21:51:55,523 INFO L437 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:55,524 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 21:51:55,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2025-04-13 21:51:55,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 844. [2025-04-13 21:51:55,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 839 states have (on average 3.0059594755661503) internal successors, (2522), 843 states have internal predecessors, (2522), 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 21:51:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 2522 transitions. [2025-04-13 21:51:55,606 INFO L79 Accepts]: Start accepts. Automaton has 844 states and 2522 transitions. Word has length 3 [2025-04-13 21:51:55,607 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:55,607 INFO L485 AbstractCegarLoop]: Abstraction has 844 states and 2522 transitions. [2025-04-13 21:51:55,607 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 21:51:55,607 INFO L278 IsEmpty]: Start isEmpty. Operand 844 states and 2522 transitions. [2025-04-13 21:51:55,608 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-04-13 21:51:55,608 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:55,608 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:51:55,608 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 21:51:55,608 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:51:55,608 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:55,609 INFO L85 PathProgramCache]: Analyzing trace with hash -270189654, now seen corresponding path program 1 times [2025-04-13 21:51:55,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:55,609 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370484077] [2025-04-13 21:51:55,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:55,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:55,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-13 21:51:55,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-13 21:51:55,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:55,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:55,952 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 21:51:55,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:55,952 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370484077] [2025-04-13 21:51:55,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370484077] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:51:55,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:51:55,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 21:51:55,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234131481] [2025-04-13 21:51:55,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:51:55,953 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 21:51:55,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:55,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 21:51:55,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 21:51:55,956 INFO L87 Difference]: Start difference. First operand 844 states and 2522 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 21:51:56,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:56,175 INFO L93 Difference]: Finished difference Result 1687 states and 5043 transitions. [2025-04-13 21:51:56,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 21:51:56,176 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2025-04-13 21:51:56,176 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:56,183 INFO L225 Difference]: With dead ends: 1687 [2025-04-13 21:51:56,184 INFO L226 Difference]: Without dead ends: 845 [2025-04-13 21:51:56,185 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 21:51:56,186 INFO L437 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:56,186 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 21:51:56,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2025-04-13 21:51:56,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2025-04-13 21:51:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 840 states have (on average 3.0035714285714286) internal successors, (2523), 844 states have internal predecessors, (2523), 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 21:51:56,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 2523 transitions. [2025-04-13 21:51:56,209 INFO L79 Accepts]: Start accepts. Automaton has 845 states and 2523 transitions. Word has length 8 [2025-04-13 21:51:56,209 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:56,209 INFO L485 AbstractCegarLoop]: Abstraction has 845 states and 2523 transitions. [2025-04-13 21:51:56,209 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 21:51:56,209 INFO L278 IsEmpty]: Start isEmpty. Operand 845 states and 2523 transitions. [2025-04-13 21:51:56,209 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-04-13 21:51:56,210 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:56,210 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:51:56,210 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 21:51:56,210 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:51:56,210 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:56,210 INFO L85 PathProgramCache]: Analyzing trace with hash -254327826, now seen corresponding path program 1 times [2025-04-13 21:51:56,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:56,210 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898070922] [2025-04-13 21:51:56,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:56,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:56,255 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-13 21:51:56,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-13 21:51:56,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:56,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:56,491 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 21:51:56,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:56,492 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898070922] [2025-04-13 21:51:56,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898070922] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:51:56,492 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039765475] [2025-04-13 21:51:56,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:56,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:56,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:51:56,495 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 21:51:56,497 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 21:51:56,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-13 21:51:56,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-13 21:51:56,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:56,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:56,996 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-13 21:51:57,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:51:57,015 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 21:51:57,015 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-13 21:51:57,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039765475] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:51:57,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-13 21:51:57,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2025-04-13 21:51:57,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657617326] [2025-04-13 21:51:57,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:51:57,016 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 21:51:57,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:57,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 21:51:57,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 21:51:57,017 INFO L87 Difference]: Start difference. First operand 845 states and 2523 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 21:51:57,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:57,238 INFO L93 Difference]: Finished difference Result 890 states and 2632 transitions. [2025-04-13 21:51:57,238 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 21:51:57,238 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-04-13 21:51:57,239 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:57,243 INFO L225 Difference]: With dead ends: 890 [2025-04-13 21:51:57,244 INFO L226 Difference]: Without dead ends: 855 [2025-04-13 21:51:57,244 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 21:51:57,244 INFO L437 NwaCegarLoop]: 3 mSDtfsCounter, 27 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:57,245 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 21:51:57,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2025-04-13 21:51:57,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 828. [2025-04-13 21:51:57,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 823 states have (on average 2.9963547995139734) internal successors, (2466), 827 states have internal predecessors, (2466), 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 21:51:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 2466 transitions. [2025-04-13 21:51:57,266 INFO L79 Accepts]: Start accepts. Automaton has 828 states and 2466 transitions. Word has length 9 [2025-04-13 21:51:57,267 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:57,267 INFO L485 AbstractCegarLoop]: Abstraction has 828 states and 2466 transitions. [2025-04-13 21:51:57,267 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 21:51:57,267 INFO L278 IsEmpty]: Start isEmpty. Operand 828 states and 2466 transitions. [2025-04-13 21:51:57,268 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-04-13 21:51:57,268 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:57,268 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:51:57,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-13 21:51:57,468 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 21:51:57,469 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 6 more)] === [2025-04-13 21:51:57,469 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:57,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1310203145, now seen corresponding path program 1 times [2025-04-13 21:51:57,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:57,469 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63907332] [2025-04-13 21:51:57,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:57,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:57,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-13 21:51:57,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-13 21:51:57,529 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:57,529 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:57,618 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 21:51:57,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:57,619 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63907332] [2025-04-13 21:51:57,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63907332] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:51:57,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:51:57,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 21:51:57,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911840750] [2025-04-13 21:51:57,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:51:57,619 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 21:51:57,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:57,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 21:51:57,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-13 21:51:57,620 INFO L87 Difference]: Start difference. First operand 828 states and 2466 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 21:51:57,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:57,980 INFO L93 Difference]: Finished difference Result 1732 states and 5248 transitions. [2025-04-13 21:51:57,980 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 21:51:57,980 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2025-04-13 21:51:57,980 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:57,988 INFO L225 Difference]: With dead ends: 1732 [2025-04-13 21:51:57,989 INFO L226 Difference]: Without dead ends: 1150 [2025-04-13 21:51:57,991 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-13 21:51:57,996 INFO L437 NwaCegarLoop]: 7 mSDtfsCounter, 92 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:57,996 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 14 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 21:51:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2025-04-13 21:51:58,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 874. [2025-04-13 21:51:58,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 874 states, 869 states have (on average 3.0356731875719216) internal successors, (2638), 873 states have internal predecessors, (2638), 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 21:51:58,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 2638 transitions. [2025-04-13 21:51:58,056 INFO L79 Accepts]: Start accepts. Automaton has 874 states and 2638 transitions. Word has length 14 [2025-04-13 21:51:58,056 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:58,056 INFO L485 AbstractCegarLoop]: Abstraction has 874 states and 2638 transitions. [2025-04-13 21:51:58,061 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 21:51:58,062 INFO L278 IsEmpty]: Start isEmpty. Operand 874 states and 2638 transitions. [2025-04-13 21:51:58,063 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-04-13 21:51:58,063 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:58,063 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:51:58,063 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 21:51:58,063 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 6 more)] === [2025-04-13 21:51:58,064 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:58,064 INFO L85 PathProgramCache]: Analyzing trace with hash -500856519, now seen corresponding path program 1 times [2025-04-13 21:51:58,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:58,064 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001546580] [2025-04-13 21:51:58,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:58,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:58,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-13 21:51:58,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-13 21:51:58,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:58,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:58,383 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 21:51:58,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:58,383 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001546580] [2025-04-13 21:51:58,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001546580] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:51:58,383 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533529733] [2025-04-13 21:51:58,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:58,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:58,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:51:58,385 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 21:51:58,387 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 21:51:58,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-13 21:51:58,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-13 21:51:58,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:58,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:58,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-13 21:51:58,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:51:58,783 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2025-04-13 21:51:58,796 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 21:51:58,796 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-13 21:51:58,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533529733] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:51:58,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-13 21:51:58,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2025-04-13 21:51:58,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109084653] [2025-04-13 21:51:58,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:51:58,797 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 21:51:58,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:58,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 21:51:58,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-13 21:51:58,797 INFO L87 Difference]: Start difference. First operand 874 states and 2638 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 21:51:59,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:59,095 INFO L93 Difference]: Finished difference Result 894 states and 2678 transitions. [2025-04-13 21:51:59,096 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 21:51:59,096 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2025-04-13 21:51:59,096 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:59,101 INFO L225 Difference]: With dead ends: 894 [2025-04-13 21:51:59,101 INFO L226 Difference]: Without dead ends: 784 [2025-04-13 21:51:59,102 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 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 21:51:59,102 INFO L437 NwaCegarLoop]: 6 mSDtfsCounter, 81 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:59,102 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 10 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 21:51:59,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2025-04-13 21:51:59,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 780. [2025-04-13 21:51:59,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 776 states have (on average 3.0412371134020617) internal successors, (2360), 779 states have internal predecessors, (2360), 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 21:51:59,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 2360 transitions. [2025-04-13 21:51:59,127 INFO L79 Accepts]: Start accepts. Automaton has 780 states and 2360 transitions. Word has length 14 [2025-04-13 21:51:59,127 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:59,127 INFO L485 AbstractCegarLoop]: Abstraction has 780 states and 2360 transitions. [2025-04-13 21:51:59,127 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 21:51:59,127 INFO L278 IsEmpty]: Start isEmpty. Operand 780 states and 2360 transitions. [2025-04-13 21:51:59,128 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-04-13 21:51:59,128 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:59,128 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 21:51:59,137 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 21:51:59,329 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:59,329 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:51:59,330 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:59,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1387545188, now seen corresponding path program 1 times [2025-04-13 21:51:59,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:59,330 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530542566] [2025-04-13 21:51:59,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:59,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:59,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-13 21:51:59,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-13 21:51:59,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:59,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:59,532 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 21:51:59,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:59,533 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530542566] [2025-04-13 21:51:59,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530542566] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:51:59,533 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920954928] [2025-04-13 21:51:59,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:59,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:59,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:51:59,535 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 21:51:59,536 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 21:51:59,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-13 21:52:00,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-13 21:52:00,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:52:00,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:00,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-04-13 21:52:00,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:52:00,173 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 21:52:00,174 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 21:52:00,222 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 21:52:00,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920954928] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 21:52:00,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 21:52:00,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2025-04-13 21:52:00,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250411324] [2025-04-13 21:52:00,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 21:52:00,223 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-13 21:52:00,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:52:00,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-13 21:52:00,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-04-13 21:52:00,224 INFO L87 Difference]: Start difference. First operand 780 states and 2360 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 21:52:00,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:52:00,633 INFO L93 Difference]: Finished difference Result 1562 states and 4730 transitions. [2025-04-13 21:52:00,633 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 21:52:00,634 INFO L79 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2025-04-13 21:52:00,634 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:52:00,639 INFO L225 Difference]: With dead ends: 1562 [2025-04-13 21:52:00,639 INFO L226 Difference]: Without dead ends: 785 [2025-04-13 21:52:00,641 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2025-04-13 21:52:00,642 INFO L437 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-04-13 21:52:00,642 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-04-13 21:52:00,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2025-04-13 21:52:00,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 785. [2025-04-13 21:52:00,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 781 states have (on average 3.028169014084507) internal successors, (2365), 784 states have internal predecessors, (2365), 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 21:52:00,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 2365 transitions. [2025-04-13 21:52:00,675 INFO L79 Accepts]: Start accepts. Automaton has 785 states and 2365 transitions. Word has length 18 [2025-04-13 21:52:00,675 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:52:00,675 INFO L485 AbstractCegarLoop]: Abstraction has 785 states and 2365 transitions. [2025-04-13 21:52:00,675 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 21:52:00,675 INFO L278 IsEmpty]: Start isEmpty. Operand 785 states and 2365 transitions. [2025-04-13 21:52:00,677 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-04-13 21:52:00,677 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:52:00,677 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 21:52:00,686 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 21:52:00,877 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 21:52:00,877 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:52:00,878 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:52:00,878 INFO L85 PathProgramCache]: Analyzing trace with hash 721033576, now seen corresponding path program 2 times [2025-04-13 21:52:00,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:52:00,878 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014441020] [2025-04-13 21:52:00,878 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 21:52:00,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:52:00,934 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-04-13 21:52:01,416 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-04-13 21:52:01,416 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-13 21:52:01,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:01,854 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:52:01,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:52:01,854 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014441020] [2025-04-13 21:52:01,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014441020] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:52:01,855 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500625741] [2025-04-13 21:52:01,855 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 21:52:01,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:52:01,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:52:01,857 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 21:52:01,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-13 21:52:02,116 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-04-13 21:52:03,002 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-04-13 21:52:03,003 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-13 21:52:03,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:03,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-13 21:52:03,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:52:03,076 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:52:03,076 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 21:52:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:52:03,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500625741] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 21:52:03,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 21:52:03,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2025-04-13 21:52:03,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513734099] [2025-04-13 21:52:03,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 21:52:03,162 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-04-13 21:52:03,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:52:03,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-04-13 21:52:03,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2025-04-13 21:52:03,163 INFO L87 Difference]: Start difference. First operand 785 states and 2365 transitions. Second operand has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 16 states have internal predecessors, (33), 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 21:52:03,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:52:03,998 INFO L93 Difference]: Finished difference Result 1573 states and 4749 transitions. [2025-04-13 21:52:03,998 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-13 21:52:03,999 INFO L79 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 16 states have internal predecessors, (33), 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 21:52:03,999 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:52:04,004 INFO L225 Difference]: With dead ends: 1573 [2025-04-13 21:52:04,004 INFO L226 Difference]: Without dead ends: 794 [2025-04-13 21:52:04,006 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=258, Unknown=0, NotChecked=0, Total=420 [2025-04-13 21:52:04,008 INFO L437 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-04-13 21:52:04,008 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-04-13 21:52:04,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2025-04-13 21:52:04,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2025-04-13 21:52:04,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 790 states have (on average 3.0050632911392405) internal successors, (2374), 793 states have internal predecessors, (2374), 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 21:52:04,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 2374 transitions. [2025-04-13 21:52:04,032 INFO L79 Accepts]: Start accepts. Automaton has 794 states and 2374 transitions. Word has length 21 [2025-04-13 21:52:04,032 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:52:04,032 INFO L485 AbstractCegarLoop]: Abstraction has 794 states and 2374 transitions. [2025-04-13 21:52:04,032 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 16 states have internal predecessors, (33), 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 21:52:04,032 INFO L278 IsEmpty]: Start isEmpty. Operand 794 states and 2374 transitions. [2025-04-13 21:52:04,033 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-04-13 21:52:04,033 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:52:04,033 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:52:04,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-13 21:52:04,234 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:52:04,234 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:52:04,234 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:52:04,234 INFO L85 PathProgramCache]: Analyzing trace with hash -393796696, now seen corresponding path program 3 times [2025-04-13 21:52:04,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:52:04,235 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666303521] [2025-04-13 21:52:04,235 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 21:52:04,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:52:04,276 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 27 statements into 6 equivalence classes. [2025-04-13 21:52:04,471 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 27 of 27 statements. [2025-04-13 21:52:04,471 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-13 21:52:04,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:04,960 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:52:04,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:52:04,960 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666303521] [2025-04-13 21:52:04,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666303521] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:52:04,960 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958439213] [2025-04-13 21:52:04,960 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 21:52:04,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:52:04,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:52:04,963 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 21:52:04,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-13 21:52:05,261 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 27 statements into 6 equivalence classes. [2025-04-13 21:52:10,199 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 27 of 27 statements. [2025-04-13 21:52:10,199 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-13 21:52:10,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:10,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-04-13 21:52:10,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:52:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:52:10,404 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 21:52:10,683 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:52:10,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958439213] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 21:52:10,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 21:52:10,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2025-04-13 21:52:10,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867402981] [2025-04-13 21:52:10,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 21:52:10,684 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-04-13 21:52:10,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:52:10,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-04-13 21:52:10,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=970, Unknown=0, NotChecked=0, Total=1190 [2025-04-13 21:52:10,684 INFO L87 Difference]: Start difference. First operand 794 states and 2374 transitions. Second operand has 35 states, 35 states have (on average 1.457142857142857) internal successors, (51), 34 states have internal predecessors, (51), 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 21:52:15,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:52:15,145 INFO L93 Difference]: Finished difference Result 1594 states and 4788 transitions. [2025-04-13 21:52:15,145 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-13 21:52:15,145 INFO L79 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.457142857142857) internal successors, (51), 34 states have internal predecessors, (51), 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 27 [2025-04-13 21:52:15,145 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:52:15,151 INFO L225 Difference]: With dead ends: 1594 [2025-04-13 21:52:15,151 INFO L226 Difference]: Without dead ends: 812 [2025-04-13 21:52:15,152 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 562 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=470, Invalid=1510, Unknown=0, NotChecked=0, Total=1980 [2025-04-13 21:52:15,153 INFO L437 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-04-13 21:52:15,153 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 2067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-04-13 21:52:15,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2025-04-13 21:52:15,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2025-04-13 21:52:15,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 808 states have (on average 2.9603960396039604) internal successors, (2392), 811 states have internal predecessors, (2392), 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 21:52:15,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 2392 transitions. [2025-04-13 21:52:15,182 INFO L79 Accepts]: Start accepts. Automaton has 812 states and 2392 transitions. Word has length 27 [2025-04-13 21:52:15,182 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:52:15,182 INFO L485 AbstractCegarLoop]: Abstraction has 812 states and 2392 transitions. [2025-04-13 21:52:15,182 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.457142857142857) internal successors, (51), 34 states have internal predecessors, (51), 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 21:52:15,182 INFO L278 IsEmpty]: Start isEmpty. Operand 812 states and 2392 transitions. [2025-04-13 21:52:15,184 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-04-13 21:52:15,184 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:52:15,184 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:52:15,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-04-13 21:52:15,389 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:52:15,389 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:52:15,389 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:52:15,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1084595432, now seen corresponding path program 4 times [2025-04-13 21:52:15,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:52:15,389 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610775214] [2025-04-13 21:52:15,389 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 21:52:15,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:52:15,450 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 39 statements into 2 equivalence classes. [2025-04-13 21:52:15,553 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-04-13 21:52:15,553 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 21:52:15,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:16,640 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:52:16,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:52:16,641 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610775214] [2025-04-13 21:52:16,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610775214] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:52:16,641 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533484253] [2025-04-13 21:52:16,641 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 21:52:16,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:52:16,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:52:16,643 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 21:52:16,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-13 21:52:16,938 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 39 statements into 2 equivalence classes. [2025-04-13 21:52:22,158 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-04-13 21:52:22,158 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 21:52:22,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:22,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 51 conjuncts are in the unsatisfiable core [2025-04-13 21:52:22,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:52:22,576 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:52:22,576 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 21:52:23,379 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:52:23,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533484253] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 21:52:23,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 21:52:23,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 67 [2025-04-13 21:52:23,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733583278] [2025-04-13 21:52:23,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 21:52:23,380 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2025-04-13 21:52:23,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:52:23,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2025-04-13 21:52:23,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1240, Invalid=3316, Unknown=0, NotChecked=0, Total=4556 [2025-04-13 21:52:23,382 INFO L87 Difference]: Start difference. First operand 812 states and 2392 transitions. Second operand has 68 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 67 states have internal predecessors, (84), 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 21:52:48,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:52:48,578 INFO L93 Difference]: Finished difference Result 1629 states and 4845 transitions. [2025-04-13 21:52:48,579 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-04-13 21:52:48,579 INFO L79 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 67 states have internal predecessors, (84), 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 39 [2025-04-13 21:52:48,579 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:52:48,584 INFO L225 Difference]: With dead ends: 1629 [2025-04-13 21:52:48,584 INFO L226 Difference]: Without dead ends: 841 [2025-04-13 21:52:48,587 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2371 ImplicationChecksByTransitivity, 22.8s TimeCoverageRelationStatistics Valid=2736, Invalid=5274, Unknown=0, NotChecked=0, Total=8010 [2025-04-13 21:52:48,588 INFO L437 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-04-13 21:52:48,588 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 2672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-04-13 21:52:48,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2025-04-13 21:52:48,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 841. [2025-04-13 21:52:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 841 states, 837 states have (on average 2.89247311827957) internal successors, (2421), 840 states have internal predecessors, (2421), 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 21:52:48,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 2421 transitions. [2025-04-13 21:52:48,638 INFO L79 Accepts]: Start accepts. Automaton has 841 states and 2421 transitions. Word has length 39 [2025-04-13 21:52:48,638 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:52:48,638 INFO L485 AbstractCegarLoop]: Abstraction has 841 states and 2421 transitions. [2025-04-13 21:52:48,638 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 67 states have internal predecessors, (84), 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 21:52:48,638 INFO L278 IsEmpty]: Start isEmpty. Operand 841 states and 2421 transitions. [2025-04-13 21:52:48,641 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-04-13 21:52:48,641 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:52:48,641 INFO L218 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:52:48,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-13 21:52:48,842 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:52:48,842 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:52:48,843 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:52:48,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1771768488, now seen corresponding path program 5 times [2025-04-13 21:52:48,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:52:48,843 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009781552] [2025-04-13 21:52:48,843 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 21:52:48,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:52:48,908 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 63 statements into 24 equivalence classes. [2025-04-13 21:52:49,916 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) and asserted 63 of 63 statements. [2025-04-13 21:52:49,917 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2025-04-13 21:52:49,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:52,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:52:52,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:52:52,936 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009781552] [2025-04-13 21:52:52,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009781552] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:52:52,936 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184866087] [2025-04-13 21:52:52,936 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 21:52:52,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:52:52,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:52:52,938 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 21:52:52,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-13 21:52:53,241 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 63 statements into 24 equivalence classes. Received shutdown request... [2025-04-13 22:06:17,768 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-04-13 22:06:17,771 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-04-13 22:06:18,782 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 [2025-04-13 22:06:18,968 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process [2025-04-13 22:06:18,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 137 [2025-04-13 22:06:18,992 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-13 22:06:18,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-04-13 22:06:18,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2025-04-13 22:06:18,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851373714] [2025-04-13 22:06:18,992 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-04-13 22:06:18,994 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2025-04-13 22:06:18,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:06:18,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2025-04-13 22:06:18,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=2212, Unknown=0, NotChecked=0, Total=2352 [2025-04-13 22:06:18,995 INFO L87 Difference]: Start difference. First operand 841 states and 2421 transitions. Second operand has 49 states, 49 states have (on average 1.2857142857142858) internal successors, (63), 48 states have internal predecessors, (63), 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 22:06:18,998 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 22:06:18,999 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=140, Invalid=2212, Unknown=0, NotChecked=0, Total=2352 [2025-04-13 22:06:18,999 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-13 22:06:18,999 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-13 22:06:19,000 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2025-04-13 22:06:19,001 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-13 22:06:19,001 WARN L610 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (841states) and FLOYD_HOARE automaton (currently 2 states, 49 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). [2025-04-13 22:06:19,003 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2025-04-13 22:06:19,003 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2025-04-13 22:06:19,003 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2025-04-13 22:06:19,003 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2025-04-13 22:06:19,003 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2025-04-13 22:06:19,003 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2025-04-13 22:06:19,003 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2025-04-13 22:06:19,003 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2025-04-13 22:06:19,005 INFO L422 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1] [2025-04-13 22:06:19,007 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 22:06:19,007 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 22:06:19,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 10:06:19 BasicIcfg [2025-04-13 22:06:19,009 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 22:06:19,010 INFO L158 Benchmark]: Toolchain (without parser) took 871837.86ms. Allocated memory was 125.8MB in the beginning and 394.3MB in the end (delta: 268.4MB). Free memory was 75.7MB in the beginning and 244.4MB in the end (delta: -168.7MB). Peak memory consumption was 96.6MB. Max. memory is 8.0GB. [2025-04-13 22:06:19,010 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 22:06:19,011 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3966.67ms. Allocated memory was 125.8MB in the beginning and 239.1MB in the end (delta: 113.2MB). Free memory was 75.7MB in the beginning and 73.2MB in the end (delta: 2.5MB). Peak memory consumption was 126.9MB. Max. memory is 8.0GB. [2025-04-13 22:06:19,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.20ms. Allocated memory is still 239.1MB. Free memory was 73.2MB in the beginning and 60.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-13 22:06:19,011 INFO L158 Benchmark]: Boogie Preprocessor took 123.07ms. Allocated memory is still 239.1MB. Free memory was 60.6MB in the beginning and 50.1MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-13 22:06:19,012 INFO L158 Benchmark]: IcfgBuilder took 2839.31ms. Allocated memory was 239.1MB in the beginning and 478.2MB in the end (delta: 239.1MB). Free memory was 50.1MB in the beginning and 168.7MB in the end (delta: -118.6MB). Peak memory consumption was 140.8MB. Max. memory is 8.0GB. [2025-04-13 22:06:19,012 INFO L158 Benchmark]: TraceAbstraction took 864767.27ms. Allocated memory was 478.2MB in the beginning and 394.3MB in the end (delta: -83.9MB). Free memory was 168.7MB in the beginning and 244.4MB in the end (delta: -75.8MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 22:06:19,014 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 155.2MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 3966.67ms. Allocated memory was 125.8MB in the beginning and 239.1MB in the end (delta: 113.2MB). Free memory was 75.7MB in the beginning and 73.2MB in the end (delta: 2.5MB). Peak memory consumption was 126.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 131.20ms. Allocated memory is still 239.1MB. Free memory was 73.2MB in the beginning and 60.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 123.07ms. Allocated memory is still 239.1MB. Free memory was 60.6MB in the beginning and 50.1MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * IcfgBuilder took 2839.31ms. Allocated memory was 239.1MB in the beginning and 478.2MB in the end (delta: 239.1MB). Free memory was 50.1MB in the beginning and 168.7MB in the end (delta: -118.6MB). Peak memory consumption was 140.8MB. Max. memory is 8.0GB. * TraceAbstraction took 864767.27ms. Allocated memory was 478.2MB in the beginning and 394.3MB in the end (delta: -83.9MB). Free memory was 168.7MB in the beginning and 244.4MB in the end (delta: -75.8MB). 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 - TimeoutResultAtElement [Line: 175]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while NwaCegarLoop was constructing difference of abstraction (841states) and FLOYD_HOARE automaton (currently 2 states, 49 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 175]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while NwaCegarLoop was constructing difference of abstraction (841states) and FLOYD_HOARE automaton (currently 2 states, 49 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 7083]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while NwaCegarLoop was constructing difference of abstraction (841states) and FLOYD_HOARE automaton (currently 2 states, 49 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 7082]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while NwaCegarLoop was constructing difference of abstraction (841states) and FLOYD_HOARE automaton (currently 2 states, 49 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 175]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while NwaCegarLoop was constructing difference of abstraction (841states) and FLOYD_HOARE automaton (currently 2 states, 49 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 175]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while NwaCegarLoop was constructing difference of abstraction (841states) and FLOYD_HOARE automaton (currently 2 states, 49 states before enhancement),while ReachableStatesComputation was computing reachable states (1 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 105 locations, 162 edges, 9 error locations. Started 1 CEGAR loops. OverallTime: 864.6s, OverallIterations: 10, TraceHistogramMax: 46, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 32.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 8.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 200 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 8.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 187 mSDsCounter, 304 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6499 IncrementalHoareTripleChecker+Invalid, 6803 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 304 mSolverCounterUnsat, 34 mSDtfsCounter, 6499 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 366 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3062 ImplicationChecksByTransitivity, 26.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=874occurred in iteration=4, InterpolantAutomatonStates: 106, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 307 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 13.8s SatisfiabilityAnalysisTime, 8.3s InterpolantComputationTime, 344 NumberOfCodeBlocks, 344 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 2225 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4539 ConjunctsInSsa, 120 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 3/2043 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown