/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_current.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 21:51:28,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 21:51:28,098 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 21:51:28,103 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 21:51:28,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 21:51:28,126 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 21:51:28,127 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 21:51:28,127 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 21:51:28,127 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 21:51:28,128 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 21:51:28,128 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 21:51:28,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 21:51:28,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 21:51:28,129 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 21:51:28,129 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 21:51:28,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 21:51:28,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 21:51:28,129 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 21:51:28,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 21:51:28,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 21:51:28,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 21:51:28,129 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 21:51:28,129 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 21:51:28,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 21:51:28,130 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 21:51:28,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 21:51:28,130 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 21:51:28,130 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 21:51:28,130 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 21:51:28,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:51:28,130 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:51:28,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:51:28,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:51:28,130 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:51:28,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 21:51:28,131 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 21:51:28,132 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 21:51:28,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 21:51:28,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 21:51:28,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 21:51:28,371 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 21:51:28,373 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 21:51:28,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2025-04-13 21:51:29,705 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36794121/a4232788ae9946de86e73936b019234a/FLAGe23a5c752 [2025-04-13 21:51:30,209 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 21:51:30,210 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2025-04-13 21:51:30,254 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36794121/a4232788ae9946de86e73936b019234a/FLAGe23a5c752 [2025-04-13 21:51:30,706 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c36794121/a4232788ae9946de86e73936b019234a [2025-04-13 21:51:30,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 21:51:30,709 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 21:51:30,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 21:51:30,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 21:51:30,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 21:51:30,714 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:51:30" (1/1) ... [2025-04-13 21:51:30,714 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@437c105a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:30, skipping insertion in model container [2025-04-13 21:51:30,714 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:51:30" (1/1) ... [2025-04-13 21:51:30,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 21:51:31,111 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_current.i[5520,5533] [2025-04-13 21:51:35,866 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 21:51:35,867 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 21:51:35,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:51:35,949 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 21:51:35,971 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_current.i[5520,5533] [2025-04-13 21:51:36,054 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 21:51:36,055 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 21:51:36,056 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 21:51:36,056 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 21:51:36,123 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-04-13 21:51:36,192 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 21:51:36,193 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-13 21:51:36,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:51:36,480 INFO L204 MainTranslator]: Completed translation [2025-04-13 21:51:36,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36 WrapperNode [2025-04-13 21:51:36,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 21:51:36,481 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 21:51:36,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 21:51:36,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 21:51:36,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,551 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,596 INFO L138 Inliner]: procedures = 1392, calls = 1539, calls flagged for inlining = 397, calls inlined = 54, statements flattened = 748 [2025-04-13 21:51:36,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 21:51:36,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 21:51:36,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 21:51:36,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 21:51:36,611 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,616 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,643 INFO L175 MemorySlicer]: Split 70 memory accesses to 10 slices as follows [2, 1, 4, 2, 11, 9, 10, 25, 4, 2]. 36 percent of accesses are in the largest equivalence class. The 50 initializations are split as follows [2, 1, 0, 2, 4, 4, 8, 25, 4, 0]. The 6 writes are split as follows [0, 0, 1, 0, 2, 0, 1, 0, 0, 2]. [2025-04-13 21:51:36,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,660 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,668 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,675 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 21:51:36,693 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-13 21:51:36,694 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-13 21:51:36,694 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-13 21:51:36,694 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (1/1) ... [2025-04-13 21:51:36,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:51:36,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:51:36,722 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 21:51:36,724 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 21:51:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-13 21:51:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-13 21:51:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-13 21:51:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-13 21:51:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-04-13 21:51:36,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-04-13 21:51:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-04-13 21:51:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-04-13 21:51:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-04-13 21:51:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-04-13 21:51:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-13 21:51:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 21:51:36,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-13 21:51:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-13 21:51:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-13 21:51:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-04-13 21:51:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-04-13 21:51:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-04-13 21:51:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-04-13 21:51:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-04-13 21:51:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-04-13 21:51:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-04-13 21:51:36,744 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-13 21:51:36,744 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_current [2025-04-13 21:51:36,745 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_current [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 21:51:36,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 21:51:36,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-04-13 21:51:36,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-04-13 21:51:36,748 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 21:51:37,117 INFO L256 CfgBuilder]: Building ICFG [2025-04-13 21:51:37,119 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 21:51:37,310 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:37,310 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:37,310 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:37,310 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6879: havoc pc8736x_gpio_current_#t~bitwise1138#1; [2025-04-13 21:51:37,338 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6879: havoc pc8736x_gpio_current_#t~bitwise1138#1; [2025-04-13 21:51:37,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:37,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6713: havoc platform_device_add_#t~nondet1102#1; [2025-04-13 21:51:37,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:37,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:37,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-15: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:37,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-20: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:37,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-25: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:37,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-30: havoc inb_p_#t~nondet1096#1; [2025-04-13 21:51:37,813 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6615: havoc alloc_chrdev_region_#t~nondet1085#1; [2025-04-13 21:51:37,813 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 21:51:37,814 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 21:51:37,814 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 21:51:37,814 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:37,814 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-8: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:37,814 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-16: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:37,814 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-24: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:37,814 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-32: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:37,814 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-40: havoc superio_inb_#t~ret1112#1; [2025-04-13 21:51:37,814 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6633: havoc cdev_add_#t~nondet1088#1; [2025-04-13 21:51:37,814 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6738: havoc register_chrdev_region_#t~nondet1106#1; [2025-04-13 21:51:37,814 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6607: havoc __request_region_#t~ret1083#1.base, __request_region_#t~ret1083#1.offset; [2025-04-13 21:51:37,815 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 21:51:37,816 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 21:51:37,816 INFO L318 CfgBuilder]: Performing block encoding [2025-04-13 21:51:39,420 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 21:51:39,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 09:51:39 BoogieIcfgContainer [2025-04-13 21:51:39,420 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-13 21:51:39,422 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 21:51:39,422 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 21:51:39,426 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 21:51:39,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 09:51:30" (1/3) ... [2025-04-13 21:51:39,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44da4c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:51:39, skipping insertion in model container [2025-04-13 21:51:39,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:51:36" (2/3) ... [2025-04-13 21:51:39,427 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44da4c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:51:39, skipping insertion in model container [2025-04-13 21:51:39,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 09:51:39" (3/3) ... [2025-04-13 21:51:39,428 INFO L128 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i [2025-04-13 21:51:39,442 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 21:51:39,446 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_current.i that has 3 procedures, 54 locations, 82 edges, 1 initial locations, 14 loop locations, and 4 error locations. [2025-04-13 21:51:39,446 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 21:51:39,546 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 21:51:39,566 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 84 transitions, 182 flow [2025-04-13 21:51:39,611 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 405 states, 399 states have (on average 2.854636591478697) internal successors, (1139), 404 states have internal predecessors, (1139), 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 21:51:39,639 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 21:51:39,648 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;@12a39a07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 21:51:39,648 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-13 21:51:39,653 INFO L278 IsEmpty]: Start isEmpty. Operand has 405 states, 399 states have (on average 2.854636591478697) internal successors, (1139), 404 states have internal predecessors, (1139), 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 21:51:39,658 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-04-13 21:51:39,659 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:39,659 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-04-13 21:51:39,659 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:51:39,663 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:39,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1901670, now seen corresponding path program 1 times [2025-04-13 21:51:39,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:39,671 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851804243] [2025-04-13 21:51:39,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:39,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:39,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-13 21:51:39,927 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-13 21:51:39,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:39,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:40,514 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 21:51:40,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:40,515 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851804243] [2025-04-13 21:51:40,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851804243] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:51:40,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:51:40,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-13 21:51:40,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162250293] [2025-04-13 21:51:40,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:51:40,522 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-13 21:51:40,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:40,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-13 21:51:40,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-13 21:51:40,541 INFO L87 Difference]: Start difference. First operand has 405 states, 399 states have (on average 2.854636591478697) internal successors, (1139), 404 states have internal predecessors, (1139), 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 21:51:40,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:40,744 INFO L93 Difference]: Finished difference Result 807 states and 2274 transitions. [2025-04-13 21:51:40,748 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 21:51:40,749 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 21:51:40,749 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:40,763 INFO L225 Difference]: With dead ends: 807 [2025-04-13 21:51:40,763 INFO L226 Difference]: Without dead ends: 404 [2025-04-13 21:51:40,769 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 21:51:40,771 INFO L437 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:40,773 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 21:51:40,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2025-04-13 21:51:40,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2025-04-13 21:51:40,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 399 states have (on average 2.7042606516290726) internal successors, (1079), 403 states have internal predecessors, (1079), 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 21:51:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 1079 transitions. [2025-04-13 21:51:40,827 INFO L79 Accepts]: Start accepts. Automaton has 404 states and 1079 transitions. Word has length 3 [2025-04-13 21:51:40,828 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:40,828 INFO L485 AbstractCegarLoop]: Abstraction has 404 states and 1079 transitions. [2025-04-13 21:51:40,828 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 21:51:40,830 INFO L278 IsEmpty]: Start isEmpty. Operand 404 states and 1079 transitions. [2025-04-13 21:51:40,831 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-04-13 21:51:40,831 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:40,831 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-13 21:51:40,832 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 21:51:40,832 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:51:40,833 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:40,833 INFO L85 PathProgramCache]: Analyzing trace with hash 823334203, now seen corresponding path program 1 times [2025-04-13 21:51:40,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:40,833 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286420069] [2025-04-13 21:51:40,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:40,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:40,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-13 21:51:40,961 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-13 21:51:40,961 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:40,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:41,331 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 21:51:41,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:41,331 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286420069] [2025-04-13 21:51:41,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286420069] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:51:41,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:51:41,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 21:51:41,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290899940] [2025-04-13 21:51:41,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:51:41,333 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 21:51:41,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:41,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 21:51:41,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 21:51:41,333 INFO L87 Difference]: Start difference. First operand 404 states and 1079 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 21:51:41,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:41,519 INFO L93 Difference]: Finished difference Result 807 states and 2157 transitions. [2025-04-13 21:51:41,519 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 21:51:41,519 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2025-04-13 21:51:41,519 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:41,522 INFO L225 Difference]: With dead ends: 807 [2025-04-13 21:51:41,522 INFO L226 Difference]: Without dead ends: 405 [2025-04-13 21:51:41,527 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 21:51:41,527 INFO L437 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:41,528 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 21:51:41,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2025-04-13 21:51:41,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 405. [2025-04-13 21:51:41,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 400 states have (on average 2.7) internal successors, (1080), 404 states have internal predecessors, (1080), 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 21:51:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 1080 transitions. [2025-04-13 21:51:41,557 INFO L79 Accepts]: Start accepts. Automaton has 405 states and 1080 transitions. Word has length 6 [2025-04-13 21:51:41,557 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:41,557 INFO L485 AbstractCegarLoop]: Abstraction has 405 states and 1080 transitions. [2025-04-13 21:51:41,557 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 21:51:41,557 INFO L278 IsEmpty]: Start isEmpty. Operand 405 states and 1080 transitions. [2025-04-13 21:51:41,558 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-04-13 21:51:41,558 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:41,558 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:51:41,558 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 21:51:41,558 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:51:41,558 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:41,558 INFO L85 PathProgramCache]: Analyzing trace with hash -385536747, now seen corresponding path program 1 times [2025-04-13 21:51:41,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:41,558 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114663511] [2025-04-13 21:51:41,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:41,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:41,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-13 21:51:41,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-13 21:51:41,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:41,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:41,965 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 21:51:41,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:41,966 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114663511] [2025-04-13 21:51:41,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114663511] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:51:41,966 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163068528] [2025-04-13 21:51:41,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:41,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:41,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:51:41,968 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 21:51:41,970 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 21:51:42,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-13 21:51:42,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-13 21:51:42,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:42,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:42,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 594 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-13 21:51:42,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:51:42,514 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 21:51:42,514 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-13 21:51:42,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163068528] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:51:42,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-13 21:51:42,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2025-04-13 21:51:42,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845624468] [2025-04-13 21:51:42,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:51:42,515 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 21:51:42,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:42,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 21:51:42,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 21:51:42,515 INFO L87 Difference]: Start difference. First operand 405 states and 1080 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 21:51:42,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:42,711 INFO L93 Difference]: Finished difference Result 433 states and 1140 transitions. [2025-04-13 21:51:42,711 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 21:51:42,711 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2025-04-13 21:51:42,711 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:42,714 INFO L225 Difference]: With dead ends: 433 [2025-04-13 21:51:42,714 INFO L226 Difference]: Without dead ends: 373 [2025-04-13 21:51:42,714 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 21:51:42,715 INFO L437 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:42,715 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 6 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 21:51:42,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2025-04-13 21:51:42,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 361. [2025-04-13 21:51:42,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 357 states have (on average 2.6750700280112043) internal successors, (955), 360 states have internal predecessors, (955), 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 21:51:42,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 955 transitions. [2025-04-13 21:51:42,725 INFO L79 Accepts]: Start accepts. Automaton has 361 states and 955 transitions. Word has length 7 [2025-04-13 21:51:42,725 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:42,725 INFO L485 AbstractCegarLoop]: Abstraction has 361 states and 955 transitions. [2025-04-13 21:51:42,726 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 21:51:42,726 INFO L278 IsEmpty]: Start isEmpty. Operand 361 states and 955 transitions. [2025-04-13 21:51:42,727 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-04-13 21:51:42,727 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:42,727 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:51:42,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-04-13 21:51:42,927 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 21:51:42,928 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:51:42,928 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:42,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1188702537, now seen corresponding path program 1 times [2025-04-13 21:51:42,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:42,928 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482647768] [2025-04-13 21:51:42,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:42,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:42,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-13 21:51:42,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-13 21:51:42,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:42,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:43,200 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 21:51:43,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:43,201 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482647768] [2025-04-13 21:51:43,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482647768] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:51:43,201 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600700164] [2025-04-13 21:51:43,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:43,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:43,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:51:43,203 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 21:51:43,204 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 21:51:43,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-13 21:51:43,675 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-13 21:51:43,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:43,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:43,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-13 21:51:43,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:51:43,693 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 21:51:43,693 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-13 21:51:43,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600700164] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:51:43,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-13 21:51:43,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2025-04-13 21:51:43,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493897031] [2025-04-13 21:51:43,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:51:43,693 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 21:51:43,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:43,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 21:51:43,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 21:51:43,695 INFO L87 Difference]: Start difference. First operand 361 states and 955 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 21:51:43,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:43,878 INFO L93 Difference]: Finished difference Result 361 states and 955 transitions. [2025-04-13 21:51:43,878 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 21:51:43,879 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 21:51:43,879 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:43,881 INFO L225 Difference]: With dead ends: 361 [2025-04-13 21:51:43,881 INFO L226 Difference]: Without dead ends: 346 [2025-04-13 21:51:43,881 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 21:51:43,882 INFO L437 NwaCegarLoop]: 3 mSDtfsCounter, 13 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:43,882 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 21:51:43,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2025-04-13 21:51:43,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2025-04-13 21:51:43,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 343 states have (on average 2.676384839650146) internal successors, (918), 345 states have internal predecessors, (918), 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 21:51:43,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 918 transitions. [2025-04-13 21:51:43,893 INFO L79 Accepts]: Start accepts. Automaton has 346 states and 918 transitions. Word has length 9 [2025-04-13 21:51:43,893 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:43,893 INFO L485 AbstractCegarLoop]: Abstraction has 346 states and 918 transitions. [2025-04-13 21:51:43,893 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 21:51:43,893 INFO L278 IsEmpty]: Start isEmpty. Operand 346 states and 918 transitions. [2025-04-13 21:51:43,894 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-04-13 21:51:43,894 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:43,894 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:51:43,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-13 21:51:44,095 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-04-13 21:51:44,095 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:51:44,096 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:44,096 INFO L85 PathProgramCache]: Analyzing trace with hash 233340755, now seen corresponding path program 1 times [2025-04-13 21:51:44,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:44,096 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763566239] [2025-04-13 21:51:44,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:44,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:44,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-13 21:51:44,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-13 21:51:44,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:44,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:44,447 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 21:51:44,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:44,447 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763566239] [2025-04-13 21:51:44,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763566239] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:51:44,447 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223351288] [2025-04-13 21:51:44,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:44,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:44,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:51:44,451 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 21:51:44,452 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 21:51:44,692 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-13 21:51:44,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-13 21:51:44,919 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:44,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:44,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-13 21:51:44,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:51:44,976 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 21:51:44,985 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 21:51:44,985 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-13 21:51:44,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223351288] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:51:44,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-13 21:51:44,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2025-04-13 21:51:44,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474412140] [2025-04-13 21:51:44,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:51:44,986 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 21:51:44,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:44,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 21:51:44,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-13 21:51:44,986 INFO L87 Difference]: Start difference. First operand 346 states and 918 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 21:51:45,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:45,193 INFO L93 Difference]: Finished difference Result 346 states and 918 transitions. [2025-04-13 21:51:45,193 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 21:51:45,193 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2025-04-13 21:51:45,193 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:45,195 INFO L225 Difference]: With dead ends: 346 [2025-04-13 21:51:45,195 INFO L226 Difference]: Without dead ends: 142 [2025-04-13 21:51:45,195 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-13 21:51:45,196 INFO L437 NwaCegarLoop]: 4 mSDtfsCounter, 34 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:45,196 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 9 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 21:51:45,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2025-04-13 21:51:45,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2025-04-13 21:51:45,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 2.3404255319148937) internal successors, (330), 141 states have internal predecessors, (330), 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 21:51:45,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 330 transitions. [2025-04-13 21:51:45,204 INFO L79 Accepts]: Start accepts. Automaton has 142 states and 330 transitions. Word has length 20 [2025-04-13 21:51:45,204 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:45,204 INFO L485 AbstractCegarLoop]: Abstraction has 142 states and 330 transitions. [2025-04-13 21:51:45,204 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 21:51:45,204 INFO L278 IsEmpty]: Start isEmpty. Operand 142 states and 330 transitions. [2025-04-13 21:51:45,204 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-04-13 21:51:45,205 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:45,205 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:51:45,212 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 21:51:45,405 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:45,405 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:51:45,405 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:45,406 INFO L85 PathProgramCache]: Analyzing trace with hash 471576593, now seen corresponding path program 1 times [2025-04-13 21:51:45,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:45,406 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146620965] [2025-04-13 21:51:45,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:45,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:45,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-13 21:51:45,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-13 21:51:45,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:45,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:45,680 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 21:51:45,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:45,680 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146620965] [2025-04-13 21:51:45,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146620965] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:51:45,680 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532060560] [2025-04-13 21:51:45,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:51:45,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:45,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:51:45,682 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 21:51:45,684 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 21:51:45,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-04-13 21:51:46,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-04-13 21:51:46,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:51:46,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:46,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-13 21:51:46,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:51:46,151 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 21:51:46,151 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 21:51:46,226 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 21:51:46,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532060560] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 21:51:46,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 21:51:46,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2025-04-13 21:51:46,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508422906] [2025-04-13 21:51:46,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 21:51:46,226 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-13 21:51:46,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:46,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-13 21:51:46,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-04-13 21:51:46,227 INFO L87 Difference]: Start difference. First operand 142 states and 330 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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 21:51:46,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:46,563 INFO L93 Difference]: Finished difference Result 286 states and 670 transitions. [2025-04-13 21:51:46,564 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-13 21:51:46,564 INFO L79 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2025-04-13 21:51:46,564 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:46,565 INFO L225 Difference]: With dead ends: 286 [2025-04-13 21:51:46,565 INFO L226 Difference]: Without dead ends: 147 [2025-04-13 21:51:46,565 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2025-04-13 21:51:46,566 INFO L437 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:46,566 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-04-13 21:51:46,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2025-04-13 21:51:46,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2025-04-13 21:51:46,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 2.2945205479452055) internal successors, (335), 146 states have internal predecessors, (335), 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 21:51:46,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 335 transitions. [2025-04-13 21:51:46,573 INFO L79 Accepts]: Start accepts. Automaton has 147 states and 335 transitions. Word has length 22 [2025-04-13 21:51:46,573 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:46,573 INFO L485 AbstractCegarLoop]: Abstraction has 147 states and 335 transitions. [2025-04-13 21:51:46,573 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 7 states have internal predecessors, (28), 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 21:51:46,573 INFO L278 IsEmpty]: Start isEmpty. Operand 147 states and 335 transitions. [2025-04-13 21:51:46,575 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-04-13 21:51:46,575 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:46,575 INFO L218 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:51:46,585 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 21:51:46,781 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:46,781 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:51:46,781 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:46,781 INFO L85 PathProgramCache]: Analyzing trace with hash -556678997, now seen corresponding path program 2 times [2025-04-13 21:51:46,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:46,781 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138443320] [2025-04-13 21:51:46,782 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 21:51:46,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:46,829 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-04-13 21:51:47,008 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-04-13 21:51:47,009 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-13 21:51:47,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:47,316 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 21:51:47,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:47,316 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138443320] [2025-04-13 21:51:47,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138443320] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:51:47,316 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635660371] [2025-04-13 21:51:47,316 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 21:51:47,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:47,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:51:47,322 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 21:51:47,323 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 21:51:47,592 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-04-13 21:51:48,116 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 25 of 25 statements. [2025-04-13 21:51:48,116 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-13 21:51:48,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:48,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-13 21:51:48,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:51:48,211 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 21:51:48,211 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 21:51:48,345 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 21:51:48,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635660371] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 21:51:48,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 21:51:48,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2025-04-13 21:51:48,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518685647] [2025-04-13 21:51:48,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 21:51:48,346 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-04-13 21:51:48,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:48,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-04-13 21:51:48,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2025-04-13 21:51:48,346 INFO L87 Difference]: Start difference. First operand 147 states and 335 transitions. Second operand has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 16 states have internal predecessors, (37), 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 21:51:49,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:51:49,018 INFO L93 Difference]: Finished difference Result 297 states and 689 transitions. [2025-04-13 21:51:49,018 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-13 21:51:49,018 INFO L79 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 16 states have internal predecessors, (37), 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 25 [2025-04-13 21:51:49,019 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:51:49,020 INFO L225 Difference]: With dead ends: 297 [2025-04-13 21:51:49,020 INFO L226 Difference]: Without dead ends: 156 [2025-04-13 21:51:49,020 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 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 21:51:49,021 INFO L437 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-04-13 21:51:49,021 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-04-13 21:51:49,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2025-04-13 21:51:49,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2025-04-13 21:51:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 2.2193548387096773) internal successors, (344), 155 states have internal predecessors, (344), 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 21:51:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 344 transitions. [2025-04-13 21:51:49,027 INFO L79 Accepts]: Start accepts. Automaton has 156 states and 344 transitions. Word has length 25 [2025-04-13 21:51:49,027 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:51:49,027 INFO L485 AbstractCegarLoop]: Abstraction has 156 states and 344 transitions. [2025-04-13 21:51:49,027 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.176470588235294) internal successors, (37), 16 states have internal predecessors, (37), 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 21:51:49,027 INFO L278 IsEmpty]: Start isEmpty. Operand 156 states and 344 transitions. [2025-04-13 21:51:49,028 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-04-13 21:51:49,028 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:51:49,028 INFO L218 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:51:49,037 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 21:51:49,228 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:49,229 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:51:49,229 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:51:49,229 INFO L85 PathProgramCache]: Analyzing trace with hash 944858859, now seen corresponding path program 3 times [2025-04-13 21:51:49,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:51:49,229 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247173340] [2025-04-13 21:51:49,229 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 21:51:49,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:51:49,278 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 31 statements into 6 equivalence classes. [2025-04-13 21:51:49,786 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 31 of 31 statements. [2025-04-13 21:51:49,786 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-13 21:51:49,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:50,888 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 21:51:50,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:51:50,888 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247173340] [2025-04-13 21:51:50,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247173340] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:51:50,889 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081912139] [2025-04-13 21:51:50,889 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-13 21:51:50,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:51:50,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:51:50,891 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 21:51:50,892 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 21:51:51,164 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 31 statements into 6 equivalence classes. [2025-04-13 21:51:54,562 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 31 of 31 statements. [2025-04-13 21:51:54,563 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-13 21:51:54,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:51:54,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 837 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-04-13 21:51:54,575 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:51:54,798 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 21:51:54,798 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 21:51:55,205 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 21:51:55,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081912139] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 21:51:55,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 21:51:55,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 34 [2025-04-13 21:51:55,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774814716] [2025-04-13 21:51:55,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 21:51:55,206 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-04-13 21:51:55,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:51:55,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-04-13 21:51:55,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=987, Unknown=0, NotChecked=0, Total=1190 [2025-04-13 21:51:55,207 INFO L87 Difference]: Start difference. First operand 156 states and 344 transitions. Second operand has 35 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 34 states have internal predecessors, (55), 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 21:52:01,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:52:01,474 INFO L93 Difference]: Finished difference Result 318 states and 728 transitions. [2025-04-13 21:52:01,474 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-13 21:52:01,474 INFO L79 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 34 states have internal predecessors, (55), 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 31 [2025-04-13 21:52:01,474 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:52:01,475 INFO L225 Difference]: With dead ends: 318 [2025-04-13 21:52:01,475 INFO L226 Difference]: Without dead ends: 174 [2025-04-13 21:52:01,476 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=631, Invalid=2339, Unknown=0, NotChecked=0, Total=2970 [2025-04-13 21:52:01,477 INFO L437 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-04-13 21:52:01,477 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1469 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-04-13 21:52:01,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2025-04-13 21:52:01,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2025-04-13 21:52:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 2.092485549132948) internal successors, (362), 173 states have internal predecessors, (362), 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 21:52:01,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 362 transitions. [2025-04-13 21:52:01,491 INFO L79 Accepts]: Start accepts. Automaton has 174 states and 362 transitions. Word has length 31 [2025-04-13 21:52:01,491 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:52:01,491 INFO L485 AbstractCegarLoop]: Abstraction has 174 states and 362 transitions. [2025-04-13 21:52:01,491 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 34 states have internal predecessors, (55), 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 21:52:01,491 INFO L278 IsEmpty]: Start isEmpty. Operand 174 states and 362 transitions. [2025-04-13 21:52:01,491 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2025-04-13 21:52:01,491 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:52:01,492 INFO L218 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:52:01,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-13 21:52:01,692 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:52:01,692 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:52:01,693 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:52:01,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1686348651, now seen corresponding path program 4 times [2025-04-13 21:52:01,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:52:01,693 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883849195] [2025-04-13 21:52:01,693 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 21:52:01,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:52:01,751 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 43 statements into 2 equivalence classes. [2025-04-13 21:52:01,869 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 43 of 43 statements. [2025-04-13 21:52:01,869 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 21:52:01,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:03,377 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 21:52:03,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:52:03,378 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883849195] [2025-04-13 21:52:03,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883849195] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:52:03,378 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165241162] [2025-04-13 21:52:03,378 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-13 21:52:03,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:52:03,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:52:03,381 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 21:52:03,383 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 21:52:03,656 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 43 statements into 2 equivalence classes. [2025-04-13 21:52:04,535 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 43 of 43 statements. [2025-04-13 21:52:04,535 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-13 21:52:04,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:52:04,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 51 conjuncts are in the unsatisfiable core [2025-04-13 21:52:04,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-13 21:52:05,280 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 21:52:05,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-13 21:52:06,683 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 21:52:06,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165241162] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-13 21:52:06,683 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-13 21:52:06,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2025-04-13 21:52:06,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890328122] [2025-04-13 21:52:06,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-13 21:52:06,684 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2025-04-13 21:52:06,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:52:06,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2025-04-13 21:52:06,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1219, Invalid=3751, Unknown=0, NotChecked=0, Total=4970 [2025-04-13 21:52:06,685 INFO L87 Difference]: Start difference. First operand 174 states and 362 transitions. Second operand has 71 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 70 states have internal predecessors, (91), 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 21:54:20,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:54:20,191 INFO L93 Difference]: Finished difference Result 353 states and 785 transitions. [2025-04-13 21:54:20,191 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-04-13 21:54:20,192 INFO L79 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 70 states have internal predecessors, (91), 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 43 [2025-04-13 21:54:20,192 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:54:20,193 INFO L225 Difference]: With dead ends: 353 [2025-04-13 21:54:20,193 INFO L226 Difference]: Without dead ends: 203 [2025-04-13 21:54:20,196 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1519 ImplicationChecksByTransitivity, 132.2s TimeCoverageRelationStatistics Valid=3930, Invalid=9410, Unknown=0, NotChecked=0, Total=13340 [2025-04-13 21:54:20,197 INFO L437 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 2521 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 2692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 2521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2025-04-13 21:54:20,197 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 2692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 2521 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2025-04-13 21:54:20,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2025-04-13 21:54:20,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2025-04-13 21:54:20,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 202 states have (on average 1.9356435643564356) internal successors, (391), 202 states have internal predecessors, (391), 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 21:54:20,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 391 transitions. [2025-04-13 21:54:20,215 INFO L79 Accepts]: Start accepts. Automaton has 203 states and 391 transitions. Word has length 43 [2025-04-13 21:54:20,215 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:54:20,215 INFO L485 AbstractCegarLoop]: Abstraction has 203 states and 391 transitions. [2025-04-13 21:54:20,215 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 1.2816901408450705) internal successors, (91), 70 states have internal predecessors, (91), 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 21:54:20,215 INFO L278 IsEmpty]: Start isEmpty. Operand 203 states and 391 transitions. [2025-04-13 21:54:20,216 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-04-13 21:54:20,217 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:54:20,217 INFO L218 NwaCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:54:20,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-04-13 21:54:20,417 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:54:20,418 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-13 21:54:20,418 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:54:20,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1831066731, now seen corresponding path program 5 times [2025-04-13 21:54:20,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:54:20,418 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714568953] [2025-04-13 21:54:20,418 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 21:54:20,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:54:20,500 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 67 statements into 24 equivalence classes. [2025-04-13 21:54:21,749 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) and asserted 67 of 67 statements. [2025-04-13 21:54:21,749 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2025-04-13 21:54:21,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:57:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1068 refuted. 13 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:57:10,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:57:10,947 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714568953] [2025-04-13 21:57:10,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714568953] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-13 21:57:10,947 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078093781] [2025-04-13 21:57:10,947 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-13 21:57:10,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-13 21:57:10,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:57:10,949 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-13 21:57:10,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-13 21:57:11,249 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 67 statements into 24 equivalence classes. Received shutdown request... [2025-04-13 22:05:48,298 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 22:05:48,320 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-04-13 22:05:49,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2025-04-13 22:05:49,521 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forcibly destroying the process [2025-04-13 22:05:49,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 137 [2025-04-13 22:05:49,542 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-13 22:05:49,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-04-13 22:05:49,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2025-04-13 22:05:49,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908529119] [2025-04-13 22:05:49,542 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-04-13 22:05:49,543 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2025-04-13 22:05:49,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 22:05:49,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2025-04-13 22:05:49,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=2212, Unknown=17, NotChecked=0, Total=2352 [2025-04-13 22:05:49,544 INFO L87 Difference]: Start difference. First operand 203 states and 391 transitions. Second operand has 49 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 48 states have internal predecessors, (67), 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 22:05:49,556 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-13 22:05:49,556 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 102.1s TimeCoverageRelationStatistics Valid=123, Invalid=2212, Unknown=17, NotChecked=0, Total=2352 [2025-04-13 22:05:49,557 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 22:05:49,557 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 22:05:49,558 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2025-04-13 22:05:49,558 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-04-13 22:05:49,558 WARN L610 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (203states) 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 22:05:49,559 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_currentErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2025-04-13 22:05:49,560 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2025-04-13 22:05:49,560 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2025-04-13 22:05:49,560 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2025-04-13 22:05:49,560 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2025-04-13 22:05:49,560 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2025-04-13 22:05:49,560 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2025-04-13 22:05:49,560 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2025-04-13 22:05:49,561 INFO L422 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1] [2025-04-13 22:05:49,564 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 22:05:49,564 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 22:05:49,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 10:05:49 BasicIcfg [2025-04-13 22:05:49,566 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 22:05:49,568 INFO L158 Benchmark]: Toolchain (without parser) took 858857.48ms. Allocated memory was 142.6MB in the beginning and 952.1MB in the end (delta: 809.5MB). Free memory was 89.8MB in the beginning and 475.3MB in the end (delta: -385.5MB). Peak memory consumption was 429.4MB. Max. memory is 8.0GB. [2025-04-13 22:05:49,568 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 22:05:49,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5770.86ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 89.8MB in the beginning and 250.1MB in the end (delta: -160.3MB). Peak memory consumption was 105.6MB. Max. memory is 8.0GB. [2025-04-13 22:05:49,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.15ms. Allocated memory is still 360.7MB. Free memory was 250.1MB in the beginning and 237.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-13 22:05:49,568 INFO L158 Benchmark]: Boogie Preprocessor took 95.85ms. Allocated memory is still 360.7MB. Free memory was 237.6MB in the beginning and 227.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-13 22:05:49,568 INFO L158 Benchmark]: IcfgBuilder took 2727.07ms. Allocated memory was 360.7MB in the beginning and 658.5MB in the end (delta: 297.8MB). Free memory was 227.2MB in the beginning and 459.9MB in the end (delta: -232.7MB). Peak memory consumption was 187.0MB. Max. memory is 8.0GB. [2025-04-13 22:05:49,569 INFO L158 Benchmark]: TraceAbstraction took 850143.84ms. Allocated memory was 658.5MB in the beginning and 952.1MB in the end (delta: 293.6MB). Free memory was 457.8MB in the beginning and 475.3MB in the end (delta: -17.4MB). Peak memory consumption was 278.3MB. Max. memory is 8.0GB. [2025-04-13 22:05:49,570 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 159.4MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 5770.86ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 89.8MB in the beginning and 250.1MB in the end (delta: -160.3MB). Peak memory consumption was 105.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 115.15ms. Allocated memory is still 360.7MB. Free memory was 250.1MB in the beginning and 237.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 95.85ms. Allocated memory is still 360.7MB. Free memory was 237.6MB in the beginning and 227.2MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * IcfgBuilder took 2727.07ms. Allocated memory was 360.7MB in the beginning and 658.5MB in the end (delta: 297.8MB). Free memory was 227.2MB in the beginning and 459.9MB in the end (delta: -232.7MB). Peak memory consumption was 187.0MB. Max. memory is 8.0GB. * TraceAbstraction took 850143.84ms. Allocated memory was 658.5MB in the beginning and 952.1MB in the end (delta: 293.6MB). Free memory was 457.8MB in the beginning and 475.3MB in the end (delta: -17.4MB). Peak memory consumption was 278.3MB. 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 (203states) 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 (203states) 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 (203states) 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 (203states) 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 (203states) 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 (203states) 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, 87 locations, 128 edges, 9 error locations. Started 1 CEGAR loops. OverallTime: 850.0s, OverallIterations: 10, TraceHistogramMax: 46, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 141.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 82 SdHoareTripleChecker+Valid, 6.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 153 SdHoareTripleChecker+Invalid, 6.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 128 mSDsCounter, 343 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5519 IncrementalHoareTripleChecker+Invalid, 5862 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 343 mSolverCounterUnsat, 25 mSDtfsCounter, 5519 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 442 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 251 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1884 ImplicationChecksByTransitivity, 240.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=405occurred in iteration=0, InterpolantAutomatonStates: 105, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 8.0s SatisfiabilityAnalysisTime, 177.3s InterpolantComputationTime, 390 NumberOfCodeBlocks, 390 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 490 ConstructedInterpolants, 0 QuantifiedInterpolants, 2529 SizeOfPredicates, 12 NumberOfNonLiveVariables, 5175 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 21 InterpolantComputations, 5 PerfectInterpolantSequences, 3/2044 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