/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis PETRI_NET --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-14 00:11:58,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 00:11:59,035 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-14 00:11:59,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 00:11:59,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 00:11:59,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 00:11:59,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 00:11:59,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 00:11:59,056 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-14 00:11:59,056 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-14 00:11:59,056 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 00:11:59,056 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 00:11:59,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 00:11:59,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 00:11:59,056 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 00:11:59,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 00:11:59,057 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 00:11:59,057 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 00:11:59,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:11:59,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:11:59,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:11:59,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:11:59,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 00:11:59,059 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:11:59,059 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:11:59,059 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:11:59,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:11:59,059 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 00:11:59,059 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 00:11:59,059 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 00:11:59,059 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 00:11:59,060 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 00:11:59,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 00:11:59,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-14 00:11:59,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-14 00:11:59,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 00:11:59,060 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> PETRI_NET Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-14 00:11:59,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 00:11:59,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 00:11:59,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 00:11:59,302 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 00:11:59,302 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 00:11:59,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2025-04-14 00:12:00,578 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c92bc63/f5d43980d3ed41b4bcbdec9b8fab81c8/FLAG3842efe51 [2025-04-14 00:12:00,977 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 00:12:00,978 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2025-04-14 00:12:01,018 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c92bc63/f5d43980d3ed41b4bcbdec9b8fab81c8/FLAG3842efe51 [2025-04-14 00:12:01,781 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2c92bc63/f5d43980d3ed41b4bcbdec9b8fab81c8 [2025-04-14 00:12:01,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 00:12:01,784 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 00:12:01,785 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 00:12:01,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 00:12:01,791 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 00:12:01,792 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:12:01" (1/1) ... [2025-04-14 00:12:01,792 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20fdf07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:01, skipping insertion in model container [2025-04-14 00:12:01,792 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:12:01" (1/1) ... [2025-04-14 00:12:01,864 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 00:12:02,251 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i[5520,5533] [2025-04-14 00:12:05,188 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:12:05,188 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:12:05,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:12:05,247 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 00:12:05,268 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i[5520,5533] [2025-04-14 00:12:05,366 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-14 00:12:05,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-14 00:12:05,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-14 00:12:05,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2025-04-14 00:12:05,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-04-14 00:12:05,574 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:12:05,575 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:12:05,590 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:12:05,995 INFO L204 MainTranslator]: Completed translation [2025-04-14 00:12:05,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05 WrapperNode [2025-04-14 00:12:05,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 00:12:05,998 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 00:12:05,998 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 00:12:05,998 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 00:12:06,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,148 INFO L138 Inliner]: procedures = 1392, calls = 1539, calls flagged for inlining = 397, calls inlined = 58, statements flattened = 814 [2025-04-14 00:12:06,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 00:12:06,149 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 00:12:06,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 00:12:06,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 00:12:06,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,172 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,204 INFO L175 MemorySlicer]: Split 74 memory accesses to 10 slices as follows [2, 1, 4, 2, 11, 13, 10, 25, 4, 2]. 34 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 7 writes are split as follows [0, 0, 1, 0, 3, 0, 1, 0, 0, 2]. [2025-04-14 00:12:06,204 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,239 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,240 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,250 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 00:12:06,271 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 00:12:06,271 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 00:12:06,271 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 00:12:06,271 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (1/1) ... [2025-04-14 00:12:06,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:12:06,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:12:06,303 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-14 00:12:06,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-04-14 00:12:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-14 00:12:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 00:12:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-04-14 00:12:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_set [2025-04-14 00:12:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_set [2025-04-14 00:12:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-14 00:12:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-14 00:12:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-14 00:12:06,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-14 00:12:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-04-14 00:12:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-04-14 00:12:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-04-14 00:12:06,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-04-14 00:12:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-04-14 00:12:06,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-04-14 00:12:06,330 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 00:12:06,667 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 00:12:06,669 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 00:12:06,852 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:06,852 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:06,852 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:06,852 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6879: havoc pc8736x_gpio_current_#t~bitwise1138#1; [2025-04-14 00:12:07,332 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:07,332 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6713: havoc platform_device_add_#t~nondet1102#1; [2025-04-14 00:12:07,332 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:07,332 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-15: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-20: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-25: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-30: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6615: havoc alloc_chrdev_region_#t~nondet1085#1; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6717: havoc platform_device_alloc_#t~ret1103#1.base, platform_device_alloc_#t~ret1103#1.offset; [2025-04-14 00:12:07,333 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 [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923: havoc pc8736x_gpio_init_~#devid~0#1.base, pc8736x_gpio_init_~#devid~0#1.offset; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-8: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-16: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-24: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-32: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:07,333 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-40: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:07,334 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6633: havoc cdev_add_#t~nondet1088#1; [2025-04-14 00:12:07,334 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6738: havoc register_chrdev_region_#t~nondet1106#1; [2025-04-14 00:12:07,334 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6607: havoc __request_region_#t~ret1083#1.base, __request_region_#t~ret1083#1.offset; [2025-04-14 00:12:07,393 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:07,393 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:07,393 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:07,394 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 00:12:07,394 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 00:12:07,395 INFO L318 CfgBuilder]: Performing block encoding [2025-04-14 00:12:09,016 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 00:12:09,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:12:09 BoogieIcfgContainer [2025-04-14 00:12:09,016 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 00:12:09,018 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 00:12:09,018 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 00:12:09,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 00:12:09,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:12:01" (1/3) ... [2025-04-14 00:12:09,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec8ce8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:12:09, skipping insertion in model container [2025-04-14 00:12:09,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:05" (2/3) ... [2025-04-14 00:12:09,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec8ce8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:12:09, skipping insertion in model container [2025-04-14 00:12:09,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:12:09" (3/3) ... [2025-04-14 00:12:09,023 INFO L128 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i [2025-04-14 00:12:09,034 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 00:12:09,037 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_pc8736x_gpio_pc8736x_gpio_change_pc8736x_gpio_set.i that has 3 procedures, 63 locations, 99 edges, 1 initial locations, 17 loop locations, and 4 error locations. [2025-04-14 00:12:09,037 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 00:12:09,125 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-14 00:12:09,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 101 transitions, 216 flow [2025-04-14 00:12:09,213 INFO L116 PetriNetUnfolderBase]: 39/99 cut-off events. [2025-04-14 00:12:09,215 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-14 00:12:09,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 99 events. 39/99 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 192 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 64. Up to 7 conditions per place. [2025-04-14 00:12:09,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 101 transitions, 216 flow [2025-04-14 00:12:09,292 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 97 transitions, 203 flow [2025-04-14 00:12:09,297 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-14 00:12:09,305 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@252a5c79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 00:12:09,305 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-14 00:12:09,325 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-14 00:12:09,326 INFO L116 PetriNetUnfolderBase]: 5/9 cut-off events. [2025-04-14 00:12:09,326 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:12:09,326 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:09,327 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-04-14 00:12:09,327 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:09,330 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:09,330 INFO L85 PathProgramCache]: Analyzing trace with hash 2068432, now seen corresponding path program 1 times [2025-04-14 00:12:09,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:09,336 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845686950] [2025-04-14 00:12:09,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:09,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:09,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-14 00:12:09,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-14 00:12:09,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:09,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:10,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:10,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:10,091 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845686950] [2025-04-14 00:12:10,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845686950] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:10,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:12:10,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-14 00:12:10,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951891011] [2025-04-14 00:12:10,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:10,098 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-14 00:12:10,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:10,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-14 00:12:10,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-14 00:12:10,117 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 101 [2025-04-14 00:12:10,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 97 transitions, 203 flow. Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:10,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:10,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 101 [2025-04-14 00:12:10,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:10,655 INFO L116 PetriNetUnfolderBase]: 1492/2278 cut-off events. [2025-04-14 00:12:10,655 INFO L117 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2025-04-14 00:12:10,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4568 conditions, 2278 events. 1492/2278 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 8653 event pairs, 985 based on Foata normal form. 0/1763 useless extension candidates. Maximal degree in co-relation 4391. Up to 2232 conditions per place. [2025-04-14 00:12:10,679 INFO L140 encePairwiseOnDemand]: 86/101 looper letters, 79 selfloop transitions, 0 changer transitions 0/82 dead transitions. [2025-04-14 00:12:10,680 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 82 transitions, 331 flow [2025-04-14 00:12:10,681 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 00:12:10,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-14 00:12:10,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 104 transitions. [2025-04-14 00:12:10,691 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5148514851485149 [2025-04-14 00:12:10,692 INFO L175 Difference]: Start difference. First operand has 65 places, 97 transitions, 203 flow. Second operand 2 states and 104 transitions. [2025-04-14 00:12:10,692 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 82 transitions, 331 flow [2025-04-14 00:12:10,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 82 transitions, 326 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-14 00:12:10,701 INFO L231 Difference]: Finished difference. Result has 62 places, 82 transitions, 168 flow [2025-04-14 00:12:10,703 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=168, PETRI_PLACES=62, PETRI_TRANSITIONS=82} [2025-04-14 00:12:10,705 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, -3 predicate places. [2025-04-14 00:12:10,705 INFO L485 AbstractCegarLoop]: Abstraction has has 62 places, 82 transitions, 168 flow [2025-04-14 00:12:10,705 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:10,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:10,705 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:10,706 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 00:12:10,706 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:10,706 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:10,706 INFO L85 PathProgramCache]: Analyzing trace with hash -270189654, now seen corresponding path program 1 times [2025-04-14 00:12:10,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:10,706 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266917327] [2025-04-14 00:12:10,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:10,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:10,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-14 00:12:10,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-14 00:12:10,829 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:10,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:11,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:11,053 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266917327] [2025-04-14 00:12:11,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266917327] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:11,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:12:11,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-14 00:12:11,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194793480] [2025-04-14 00:12:11,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:11,054 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:12:11,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:11,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:12:11,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:12:11,054 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 101 [2025-04-14 00:12:11,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 82 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:11,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:11,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 101 [2025-04-14 00:12:11,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:11,439 INFO L116 PetriNetUnfolderBase]: 1492/2279 cut-off events. [2025-04-14 00:12:11,439 INFO L117 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-04-14 00:12:11,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4547 conditions, 2279 events. 1492/2279 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 8667 event pairs, 985 based on Foata normal form. 0/1764 useless extension candidates. Maximal degree in co-relation 4544. Up to 2232 conditions per place. [2025-04-14 00:12:11,449 INFO L140 encePairwiseOnDemand]: 97/101 looper letters, 78 selfloop transitions, 2 changer transitions 0/83 dead transitions. [2025-04-14 00:12:11,450 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 83 transitions, 330 flow [2025-04-14 00:12:11,450 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:12:11,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:12:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2025-04-14 00:12:11,451 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.3201320132013201 [2025-04-14 00:12:11,451 INFO L175 Difference]: Start difference. First operand has 62 places, 82 transitions, 168 flow. Second operand 3 states and 97 transitions. [2025-04-14 00:12:11,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 83 transitions, 330 flow [2025-04-14 00:12:11,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 83 transitions, 330 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-14 00:12:11,453 INFO L231 Difference]: Finished difference. Result has 65 places, 83 transitions, 182 flow [2025-04-14 00:12:11,453 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=182, PETRI_PLACES=65, PETRI_TRANSITIONS=83} [2025-04-14 00:12:11,454 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, 0 predicate places. [2025-04-14 00:12:11,454 INFO L485 AbstractCegarLoop]: Abstraction has has 65 places, 83 transitions, 182 flow [2025-04-14 00:12:11,454 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:11,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:11,454 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:11,454 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 00:12:11,454 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:11,455 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:11,455 INFO L85 PathProgramCache]: Analyzing trace with hash -254327826, now seen corresponding path program 1 times [2025-04-14 00:12:11,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:11,455 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792925012] [2025-04-14 00:12:11,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:11,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:11,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-14 00:12:11,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-14 00:12:11,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:11,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:11,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:11,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:11,758 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792925012] [2025-04-14 00:12:11,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792925012] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 00:12:11,758 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599834447] [2025-04-14 00:12:11,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:11,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:11,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:12:11,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 00:12:11,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-04-14 00:12:12,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-04-14 00:12:12,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-04-14 00:12:12,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:12,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:12,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-14 00:12:12,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 00:12:12,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 00:12:12,265 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-14 00:12:12,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599834447] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:12,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-14 00:12:12,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2025-04-14 00:12:12,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685396143] [2025-04-14 00:12:12,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:12,266 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:12:12,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:12,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:12:12,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:12:12,268 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 101 [2025-04-14 00:12:12,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 83 transitions, 182 flow. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:12,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:12,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 101 [2025-04-14 00:12:12,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:12,628 INFO L116 PetriNetUnfolderBase]: 1486/2291 cut-off events. [2025-04-14 00:12:12,628 INFO L117 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2025-04-14 00:12:12,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4564 conditions, 2291 events. 1486/2291 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 9038 event pairs, 820 based on Foata normal form. 0/1806 useless extension candidates. Maximal degree in co-relation 4559. Up to 1927 conditions per place. [2025-04-14 00:12:12,641 INFO L140 encePairwiseOnDemand]: 97/101 looper letters, 104 selfloop transitions, 3 changer transitions 0/110 dead transitions. [2025-04-14 00:12:12,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 110 transitions, 451 flow [2025-04-14 00:12:12,642 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:12:12,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:12:12,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 122 transitions. [2025-04-14 00:12:12,643 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.40264026402640263 [2025-04-14 00:12:12,643 INFO L175 Difference]: Start difference. First operand has 65 places, 83 transitions, 182 flow. Second operand 3 states and 122 transitions. [2025-04-14 00:12:12,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 110 transitions, 451 flow [2025-04-14 00:12:12,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 110 transitions, 447 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-04-14 00:12:12,645 INFO L231 Difference]: Finished difference. Result has 67 places, 85 transitions, 197 flow [2025-04-14 00:12:12,646 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=197, PETRI_PLACES=67, PETRI_TRANSITIONS=85} [2025-04-14 00:12:12,647 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, 2 predicate places. [2025-04-14 00:12:12,647 INFO L485 AbstractCegarLoop]: Abstraction has has 67 places, 85 transitions, 197 flow [2025-04-14 00:12:12,647 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:12,647 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:12,647 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:12,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-04-14 00:12:12,849 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 [2025-04-14 00:12:12,849 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:12,850 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:12,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1310203145, now seen corresponding path program 1 times [2025-04-14 00:12:12,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:12,850 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908303001] [2025-04-14 00:12:12,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:12,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:12,903 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-14 00:12:12,917 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-14 00:12:12,917 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:12,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 00:12:13,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:13,027 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908303001] [2025-04-14 00:12:13,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908303001] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:13,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:12:13,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:12:13,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548766957] [2025-04-14 00:12:13,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:13,027 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 00:12:13,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:13,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 00:12:13,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-14 00:12:13,028 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 101 [2025-04-14 00:12:13,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 85 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:13,028 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:13,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 101 [2025-04-14 00:12:13,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:13,551 INFO L116 PetriNetUnfolderBase]: 2098/3189 cut-off events. [2025-04-14 00:12:13,551 INFO L117 PetriNetUnfolderBase]: For 198/198 co-relation queries the response was YES. [2025-04-14 00:12:13,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6538 conditions, 3189 events. 2098/3189 cut-off events. For 198/198 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 14753 event pairs, 118 based on Foata normal form. 0/2521 useless extension candidates. Maximal degree in co-relation 6532. Up to 1934 conditions per place. [2025-04-14 00:12:13,564 INFO L140 encePairwiseOnDemand]: 96/101 looper letters, 148 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2025-04-14 00:12:13,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 155 transitions, 661 flow [2025-04-14 00:12:13,565 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 00:12:13,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-14 00:12:13,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 169 transitions. [2025-04-14 00:12:13,566 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.4183168316831683 [2025-04-14 00:12:13,566 INFO L175 Difference]: Start difference. First operand has 67 places, 85 transitions, 197 flow. Second operand 4 states and 169 transitions. [2025-04-14 00:12:13,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 155 transitions, 661 flow [2025-04-14 00:12:13,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 155 transitions, 654 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-14 00:12:13,568 INFO L231 Difference]: Finished difference. Result has 70 places, 86 transitions, 210 flow [2025-04-14 00:12:13,568 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=70, PETRI_TRANSITIONS=86} [2025-04-14 00:12:13,569 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, 5 predicate places. [2025-04-14 00:12:13,569 INFO L485 AbstractCegarLoop]: Abstraction has has 70 places, 86 transitions, 210 flow [2025-04-14 00:12:13,569 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:13,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:13,569 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:13,569 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-14 00:12:13,570 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:13,570 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:13,570 INFO L85 PathProgramCache]: Analyzing trace with hash -500856519, now seen corresponding path program 1 times [2025-04-14 00:12:13,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:13,570 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847412369] [2025-04-14 00:12:13,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:13,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:13,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-14 00:12:13,632 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-14 00:12:13,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:13,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:13,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:13,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:13,781 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847412369] [2025-04-14 00:12:13,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847412369] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 00:12:13,781 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390589158] [2025-04-14 00:12:13,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:13,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:12:13,783 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) [2025-04-14 00:12:13,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-14 00:12:14,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-14 00:12:14,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-14 00:12:14,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:14,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:14,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-04-14 00:12:14,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 00:12:14,219 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 [2025-04-14 00:12:14,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 00:12:14,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-14 00:12:14,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390589158] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:14,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-14 00:12:14,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2025-04-14 00:12:14,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688969661] [2025-04-14 00:12:14,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:14,230 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 00:12:14,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:14,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 00:12:14,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-04-14 00:12:14,235 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 101 [2025-04-14 00:12:14,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 86 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:14,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:14,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 101 [2025-04-14 00:12:14,236 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:14,751 INFO L116 PetriNetUnfolderBase]: 2040/3109 cut-off events. [2025-04-14 00:12:14,751 INFO L117 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2025-04-14 00:12:14,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6624 conditions, 3109 events. 2040/3109 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 14128 event pairs, 176 based on Foata normal form. 0/2573 useless extension candidates. Maximal degree in co-relation 6617. Up to 2284 conditions per place. [2025-04-14 00:12:14,761 INFO L140 encePairwiseOnDemand]: 94/101 looper letters, 132 selfloop transitions, 9 changer transitions 4/148 dead transitions. [2025-04-14 00:12:14,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 148 transitions, 642 flow [2025-04-14 00:12:14,761 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 00:12:14,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-14 00:12:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 161 transitions. [2025-04-14 00:12:14,762 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.39851485148514854 [2025-04-14 00:12:14,762 INFO L175 Difference]: Start difference. First operand has 70 places, 86 transitions, 210 flow. Second operand 4 states and 161 transitions. [2025-04-14 00:12:14,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 148 transitions, 642 flow [2025-04-14 00:12:14,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 148 transitions, 634 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-14 00:12:14,770 INFO L231 Difference]: Finished difference. Result has 72 places, 88 transitions, 234 flow [2025-04-14 00:12:14,770 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=234, PETRI_PLACES=72, PETRI_TRANSITIONS=88} [2025-04-14 00:12:14,770 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2025-04-14 00:12:14,770 INFO L485 AbstractCegarLoop]: Abstraction has has 72 places, 88 transitions, 234 flow [2025-04-14 00:12:14,771 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:14,771 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:14,771 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:14,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-14 00:12:14,972 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:14,973 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:14,973 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:14,973 INFO L85 PathProgramCache]: Analyzing trace with hash -391604174, now seen corresponding path program 1 times [2025-04-14 00:12:14,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:14,973 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922737770] [2025-04-14 00:12:14,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:14,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:15,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-14 00:12:15,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-14 00:12:15,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:15,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:15,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:15,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:15,207 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922737770] [2025-04-14 00:12:15,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922737770] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 00:12:15,207 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728771647] [2025-04-14 00:12:15,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:15,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:15,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:12:15,211 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) [2025-04-14 00:12:15,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-14 00:12:15,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-14 00:12:15,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-14 00:12:15,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:15,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:15,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-14 00:12:15,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 00:12:15,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:15,647 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 00:12:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:15,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728771647] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 00:12:15,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 00:12:15,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2025-04-14 00:12:15,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701641305] [2025-04-14 00:12:15,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 00:12:15,681 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-14 00:12:15,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:15,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-14 00:12:15,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2025-04-14 00:12:15,682 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 101 [2025-04-14 00:12:15,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 88 transitions, 234 flow. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:15,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:15,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 101 [2025-04-14 00:12:15,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:16,190 INFO L116 PetriNetUnfolderBase]: 2040/3086 cut-off events. [2025-04-14 00:12:16,191 INFO L117 PetriNetUnfolderBase]: For 648/648 co-relation queries the response was YES. [2025-04-14 00:12:16,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6841 conditions, 3086 events. 2040/3086 cut-off events. For 648/648 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 12427 event pairs, 1285 based on Foata normal form. 0/2544 useless extension candidates. Maximal degree in co-relation 6833. Up to 3009 conditions per place. [2025-04-14 00:12:16,206 INFO L140 encePairwiseOnDemand]: 93/101 looper letters, 82 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2025-04-14 00:12:16,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 93 transitions, 430 flow [2025-04-14 00:12:16,207 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 00:12:16,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-04-14 00:12:16,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2025-04-14 00:12:16,208 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.20627062706270627 [2025-04-14 00:12:16,208 INFO L175 Difference]: Start difference. First operand has 72 places, 88 transitions, 234 flow. Second operand 6 states and 125 transitions. [2025-04-14 00:12:16,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 93 transitions, 430 flow [2025-04-14 00:12:16,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 93 transitions, 424 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-14 00:12:16,252 INFO L231 Difference]: Finished difference. Result has 79 places, 93 transitions, 294 flow [2025-04-14 00:12:16,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=294, PETRI_PLACES=79, PETRI_TRANSITIONS=93} [2025-04-14 00:12:16,253 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, 14 predicate places. [2025-04-14 00:12:16,253 INFO L485 AbstractCegarLoop]: Abstraction has has 79 places, 93 transitions, 294 flow [2025-04-14 00:12:16,253 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:16,253 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:16,253 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:16,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-14 00:12:16,454 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:16,454 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:16,455 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:16,455 INFO L85 PathProgramCache]: Analyzing trace with hash 965434202, now seen corresponding path program 2 times [2025-04-14 00:12:16,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:16,455 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883591258] [2025-04-14 00:12:16,456 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 00:12:16,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:16,513 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-04-14 00:12:16,795 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-04-14 00:12:16,795 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 00:12:16,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:17,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:17,073 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883591258] [2025-04-14 00:12:17,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883591258] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 00:12:17,074 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626614819] [2025-04-14 00:12:17,074 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 00:12:17,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:17,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:12:17,077 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) [2025-04-14 00:12:17,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-14 00:12:17,342 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-04-14 00:12:18,305 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 21 of 21 statements. [2025-04-14 00:12:18,305 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 00:12:18,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:18,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-14 00:12:18,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 00:12:18,369 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:18,369 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 00:12:18,453 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:18,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626614819] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 00:12:18,454 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 00:12:18,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2025-04-14 00:12:18,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517825934] [2025-04-14 00:12:18,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 00:12:18,454 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-04-14 00:12:18,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:18,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-04-14 00:12:18,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2025-04-14 00:12:18,455 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 101 [2025-04-14 00:12:18,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 93 transitions, 294 flow. Second operand has 17 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 17 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:18,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:18,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 101 [2025-04-14 00:12:18,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:19,619 INFO L116 PetriNetUnfolderBase]: 2040/3099 cut-off events. [2025-04-14 00:12:19,620 INFO L117 PetriNetUnfolderBase]: For 622/622 co-relation queries the response was YES. [2025-04-14 00:12:19,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6764 conditions, 3099 events. 2040/3099 cut-off events. For 622/622 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 12529 event pairs, 1285 based on Foata normal form. 9/2574 useless extension candidates. Maximal degree in co-relation 6753. Up to 3009 conditions per place. [2025-04-14 00:12:19,638 INFO L140 encePairwiseOnDemand]: 93/101 looper letters, 82 selfloop transitions, 17 changer transitions 0/102 dead transitions. [2025-04-14 00:12:19,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 102 transitions, 540 flow [2025-04-14 00:12:19,639 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 00:12:19,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-04-14 00:12:19,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 172 transitions. [2025-04-14 00:12:19,642 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.1419141914191419 [2025-04-14 00:12:19,643 INFO L175 Difference]: Start difference. First operand has 79 places, 93 transitions, 294 flow. Second operand 12 states and 172 transitions. [2025-04-14 00:12:19,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 102 transitions, 540 flow [2025-04-14 00:12:19,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 102 transitions, 530 flow, removed 4 selfloop flow, removed 1 redundant places. [2025-04-14 00:12:19,649 INFO L231 Difference]: Finished difference. Result has 95 places, 102 transitions, 428 flow [2025-04-14 00:12:19,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=428, PETRI_PLACES=95, PETRI_TRANSITIONS=102} [2025-04-14 00:12:19,650 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, 30 predicate places. [2025-04-14 00:12:19,650 INFO L485 AbstractCegarLoop]: Abstraction has has 95 places, 102 transitions, 428 flow [2025-04-14 00:12:19,650 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 17 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:19,650 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:19,650 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:19,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-14 00:12:19,850 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:19,851 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:19,851 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:19,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1380145256, now seen corresponding path program 1 times [2025-04-14 00:12:19,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:19,851 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686655810] [2025-04-14 00:12:19,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:19,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:19,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-04-14 00:12:19,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 00:12:19,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:19,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-04-14 00:12:19,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:19,978 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686655810] [2025-04-14 00:12:19,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686655810] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:19,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:12:19,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 00:12:19,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586692363] [2025-04-14 00:12:19,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:19,978 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:12:19,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:19,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:12:19,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:12:19,979 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 101 [2025-04-14 00:12:19,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 102 transitions, 428 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:19,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:19,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 101 [2025-04-14 00:12:19,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:20,396 INFO L116 PetriNetUnfolderBase]: 2568/3963 cut-off events. [2025-04-14 00:12:20,397 INFO L117 PetriNetUnfolderBase]: For 754/754 co-relation queries the response was YES. [2025-04-14 00:12:20,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8590 conditions, 3963 events. 2568/3963 cut-off events. For 754/754 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 18179 event pairs, 1285 based on Foata normal form. 0/3355 useless extension candidates. Maximal degree in co-relation 8572. Up to 3024 conditions per place. [2025-04-14 00:12:20,414 INFO L140 encePairwiseOnDemand]: 97/101 looper letters, 128 selfloop transitions, 3 changer transitions 2/136 dead transitions. [2025-04-14 00:12:20,414 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 136 transitions, 776 flow [2025-04-14 00:12:20,414 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:12:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:12:20,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 129 transitions. [2025-04-14 00:12:20,415 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.42574257425742573 [2025-04-14 00:12:20,415 INFO L175 Difference]: Start difference. First operand has 95 places, 102 transitions, 428 flow. Second operand 3 states and 129 transitions. [2025-04-14 00:12:20,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 136 transitions, 776 flow [2025-04-14 00:12:20,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 136 transitions, 736 flow, removed 18 selfloop flow, removed 2 redundant places. [2025-04-14 00:12:20,423 INFO L231 Difference]: Finished difference. Result has 96 places, 104 transitions, 415 flow [2025-04-14 00:12:20,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=96, PETRI_TRANSITIONS=104} [2025-04-14 00:12:20,425 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, 31 predicate places. [2025-04-14 00:12:20,425 INFO L485 AbstractCegarLoop]: Abstraction has has 96 places, 104 transitions, 415 flow [2025-04-14 00:12:20,425 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:20,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:20,425 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:20,425 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-04-14 00:12:20,425 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:20,425 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:20,426 INFO L85 PathProgramCache]: Analyzing trace with hash 2033460764, now seen corresponding path program 3 times [2025-04-14 00:12:20,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:20,426 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268826368] [2025-04-14 00:12:20,426 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 00:12:20,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:20,472 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 27 statements into 6 equivalence classes. [2025-04-14 00:12:20,919 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 00:12:20,919 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-14 00:12:20,919 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:21,406 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:21,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:21,407 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268826368] [2025-04-14 00:12:21,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268826368] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 00:12:21,407 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830206046] [2025-04-14 00:12:21,407 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 00:12:21,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:21,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:12:21,409 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) [2025-04-14 00:12:21,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-14 00:12:21,668 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 27 statements into 6 equivalence classes. [2025-04-14 00:12:23,917 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 00:12:23,917 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-14 00:12:23,917 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:23,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-04-14 00:12:23,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 00:12:24,104 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:24,104 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 00:12:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:24,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830206046] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 00:12:24,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 00:12:24,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 33 [2025-04-14 00:12:24,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032938906] [2025-04-14 00:12:24,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 00:12:24,364 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-04-14 00:12:24,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:24,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-04-14 00:12:24,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=905, Unknown=0, NotChecked=0, Total=1122 [2025-04-14 00:12:24,365 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 101 [2025-04-14 00:12:24,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 104 transitions, 415 flow. Second operand has 34 states, 34 states have (on average 6.470588235294118) internal successors, (220), 34 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:24,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:24,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 101 [2025-04-14 00:12:24,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:27,818 INFO L116 PetriNetUnfolderBase]: 2568/3929 cut-off events. [2025-04-14 00:12:27,818 INFO L117 PetriNetUnfolderBase]: For 2160/2160 co-relation queries the response was YES. [2025-04-14 00:12:27,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9090 conditions, 3929 events. 2568/3929 cut-off events. For 2160/2160 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 17053 event pairs, 1645 based on Foata normal form. 18/3505 useless extension candidates. Maximal degree in co-relation 9070. Up to 3789 conditions per place. [2025-04-14 00:12:27,837 INFO L140 encePairwiseOnDemand]: 93/101 looper letters, 84 selfloop transitions, 35 changer transitions 0/122 dead transitions. [2025-04-14 00:12:27,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 122 transitions, 749 flow [2025-04-14 00:12:27,838 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-14 00:12:27,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-04-14 00:12:27,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 268 transitions. [2025-04-14 00:12:27,839 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.11056105610561057 [2025-04-14 00:12:27,840 INFO L175 Difference]: Start difference. First operand has 96 places, 104 transitions, 415 flow. Second operand 24 states and 268 transitions. [2025-04-14 00:12:27,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 122 transitions, 749 flow [2025-04-14 00:12:27,844 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 122 transitions, 746 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-14 00:12:27,846 INFO L231 Difference]: Finished difference. Result has 130 places, 122 transitions, 700 flow [2025-04-14 00:12:27,846 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=700, PETRI_PLACES=130, PETRI_TRANSITIONS=122} [2025-04-14 00:12:27,846 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, 65 predicate places. [2025-04-14 00:12:27,846 INFO L485 AbstractCegarLoop]: Abstraction has has 130 places, 122 transitions, 700 flow [2025-04-14 00:12:27,847 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 6.470588235294118) internal successors, (220), 34 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:27,847 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:27,847 INFO L206 CegarLoopForPetriNet]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:27,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-14 00:12:28,047 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:28,047 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:28,048 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:28,048 INFO L85 PathProgramCache]: Analyzing trace with hash 9860138, now seen corresponding path program 4 times [2025-04-14 00:12:28,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:28,048 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218013437] [2025-04-14 00:12:28,048 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 00:12:28,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:28,106 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 39 statements into 2 equivalence classes. [2025-04-14 00:12:28,196 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-04-14 00:12:28,196 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 00:12:28,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:29,204 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:29,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:29,204 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218013437] [2025-04-14 00:12:29,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218013437] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 00:12:29,204 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391091656] [2025-04-14 00:12:29,204 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 00:12:29,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:29,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:12:29,206 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) [2025-04-14 00:12:29,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-14 00:12:29,468 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 39 statements into 2 equivalence classes. [2025-04-14 00:12:34,990 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 39 of 39 statements. [2025-04-14 00:12:34,991 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 00:12:34,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:35,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 51 conjuncts are in the unsatisfiable core [2025-04-14 00:12:35,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 00:12:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:35,606 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 00:12:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:12:36,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391091656] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 00:12:36,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 00:12:36,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 70 [2025-04-14 00:12:36,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343280262] [2025-04-14 00:12:36,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 00:12:36,563 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2025-04-14 00:12:36,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:36,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2025-04-14 00:12:36,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1264, Invalid=3706, Unknown=0, NotChecked=0, Total=4970 [2025-04-14 00:12:36,566 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 101 [2025-04-14 00:12:36,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 122 transitions, 700 flow. Second operand has 71 states, 71 states have (on average 6.225352112676056) internal successors, (442), 71 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:36,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:36,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 101 [2025-04-14 00:12:36,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:14:36,538 INFO L116 PetriNetUnfolderBase]: 2568/3958 cut-off events. [2025-04-14 00:14:36,538 INFO L117 PetriNetUnfolderBase]: For 7028/7028 co-relation queries the response was YES. [2025-04-14 00:14:36,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9254 conditions, 3958 events. 2568/3958 cut-off events. For 7028/7028 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 17167 event pairs, 1645 based on Foata normal form. 29/3545 useless extension candidates. Maximal degree in co-relation 9222. Up to 3789 conditions per place. [2025-04-14 00:14:36,567 INFO L140 encePairwiseOnDemand]: 93/101 looper letters, 84 selfloop transitions, 64 changer transitions 0/151 dead transitions. [2025-04-14 00:14:36,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 151 transitions, 1218 flow [2025-04-14 00:14:36,567 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-04-14 00:14:36,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2025-04-14 00:14:36,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 439 transitions. [2025-04-14 00:14:36,571 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.09055280528052806 [2025-04-14 00:14:36,571 INFO L175 Difference]: Start difference. First operand has 130 places, 122 transitions, 700 flow. Second operand 48 states and 439 transitions. [2025-04-14 00:14:36,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 151 transitions, 1218 flow [2025-04-14 00:14:36,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 151 transitions, 1076 flow, removed 64 selfloop flow, removed 6 redundant places. [2025-04-14 00:14:36,582 INFO L231 Difference]: Finished difference. Result has 195 places, 151 transitions, 1108 flow [2025-04-14 00:14:36,583 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=1108, PETRI_PLACES=195, PETRI_TRANSITIONS=151} [2025-04-14 00:14:36,583 INFO L279 CegarLoopForPetriNet]: 65 programPoint places, 130 predicate places. [2025-04-14 00:14:36,583 INFO L485 AbstractCegarLoop]: Abstraction has has 195 places, 151 transitions, 1108 flow [2025-04-14 00:14:36,584 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 6.225352112676056) internal successors, (442), 71 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:14:36,584 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:14:36,584 INFO L206 CegarLoopForPetriNet]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:14:36,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-04-14 00:14:36,785 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:14:36,785 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:14:36,786 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:14:36,786 INFO L85 PathProgramCache]: Analyzing trace with hash -806515158, now seen corresponding path program 5 times [2025-04-14 00:14:36,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:14:36,786 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941258003] [2025-04-14 00:14:36,786 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 00:14:36,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:14:36,847 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 63 statements into 24 equivalence classes. [2025-04-14 00:14:38,047 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) and asserted 63 of 63 statements. [2025-04-14 00:14:38,048 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2025-04-14 00:14:38,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:14:40,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 00:14:40,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:14:40,975 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941258003] [2025-04-14 00:14:40,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941258003] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 00:14:40,976 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511292302] [2025-04-14 00:14:40,976 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 00:14:40,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:14:40,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:14:40,978 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) [2025-04-14 00:14:40,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-14 00:14:41,281 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 63 statements into 24 equivalence classes. Received shutdown request... [2025-04-14 00:26:30,322 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2025-04-14 00:26:30,327 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 [2025-04-14 00:26:31,337 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 [2025-04-14 00:26:31,522 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forcibly destroying the process [2025-04-14 00:26:31,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 137 [2025-04-14 00:26:31,549 WARN L301 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-04-14 00:26:31,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-04-14 00:26:31,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2025-04-14 00:26:31,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963467376] [2025-04-14 00:26:31,549 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-04-14 00:26:31,549 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2025-04-14 00:26:31,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:26:31,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2025-04-14 00:26:31,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=2211, Unknown=0, NotChecked=0, Total=2352 [2025-04-14 00:26:31,551 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 101 [2025-04-14 00:26:31,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 151 transitions, 1108 flow. Second operand has 49 states, 49 states have (on average 6.285714285714286) internal successors, (308), 49 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:26:31,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:26:31,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 101 [2025-04-14 00:26:31,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:26:31,553 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2025-04-14 00:26:31,553 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-04-14 00:26:31,553 WARN L610 AbstractCegarLoop]: Verification canceled: while executing Executor. [2025-04-14 00:26:31,554 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2025-04-14 00:26:31,554 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2025-04-14 00:26:31,554 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2025-04-14 00:26:31,554 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2025-04-14 00:26:31,554 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2025-04-14 00:26:31,554 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2025-04-14 00:26:31,554 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2025-04-14 00:26:31,554 INFO L790 garLoopResultBuilder]: Registering result TIMEOUT for location whoop_wrapper_pc8736x_gpio_setErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2025-04-14 00:26:31,554 INFO L422 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1] [2025-04-14 00:26:31,557 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 00:26:31,557 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 00:26:31,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 12:26:31 BasicIcfg [2025-04-14 00:26:31,561 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 00:26:31,561 INFO L158 Benchmark]: Toolchain (without parser) took 869777.04ms. Allocated memory was 125.8MB in the beginning and 1.1GB in the end (delta: 981.5MB). Free memory was 77.2MB in the beginning and 703.8MB in the end (delta: -626.7MB). Peak memory consumption was 353.9MB. Max. memory is 8.0GB. [2025-04-14 00:26:31,562 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:26:31,563 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4210.78ms. Allocated memory was 125.8MB in the beginning and 377.5MB in the end (delta: 251.7MB). Free memory was 77.2MB in the beginning and 210.5MB in the end (delta: -133.4MB). Peak memory consumption was 130.6MB. Max. memory is 8.0GB. [2025-04-14 00:26:31,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 150.99ms. Allocated memory is still 377.5MB. Free memory was 210.5MB in the beginning and 198.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-14 00:26:31,564 INFO L158 Benchmark]: Boogie Preprocessor took 120.61ms. Allocated memory is still 377.5MB. Free memory was 198.0MB in the beginning and 187.4MB in the end (delta: 10.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-14 00:26:31,564 INFO L158 Benchmark]: IcfgBuilder took 2745.83ms. Allocated memory was 377.5MB in the beginning and 335.5MB in the end (delta: -41.9MB). Free memory was 187.4MB in the beginning and 103.2MB in the end (delta: 84.1MB). Peak memory consumption was 129.3MB. Max. memory is 8.0GB. [2025-04-14 00:26:31,564 INFO L158 Benchmark]: TraceAbstraction took 862542.92ms. Allocated memory was 335.5MB in the beginning and 1.1GB in the end (delta: 771.8MB). Free memory was 101.1MB in the beginning and 703.8MB in the end (delta: -602.7MB). Peak memory consumption was 167.0MB. Max. memory is 8.0GB. [2025-04-14 00:26:31,565 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 167.8MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4210.78ms. Allocated memory was 125.8MB in the beginning and 377.5MB in the end (delta: 251.7MB). Free memory was 77.2MB in the beginning and 210.5MB in the end (delta: -133.4MB). Peak memory consumption was 130.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 150.99ms. Allocated memory is still 377.5MB. Free memory was 210.5MB in the beginning and 198.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 120.61ms. Allocated memory is still 377.5MB. Free memory was 198.0MB in the beginning and 187.4MB in the end (delta: 10.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgBuilder took 2745.83ms. Allocated memory was 377.5MB in the beginning and 335.5MB in the end (delta: -41.9MB). Free memory was 187.4MB in the beginning and 103.2MB in the end (delta: 84.1MB). Peak memory consumption was 129.3MB. Max. memory is 8.0GB. * TraceAbstraction took 862542.92ms. Allocated memory was 335.5MB in the beginning and 1.1GB in the end (delta: 771.8MB). Free memory was 101.1MB in the beginning and 703.8MB in the end (delta: -602.7MB). Peak memory consumption was 167.0MB. 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: - TimeoutResultAtElement [Line: 175]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 175]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 7083]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 7082]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 175]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 175]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 105 locations, 162 edges, 9 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 862.4s, OverallIterations: 11, TraceHistogramMax: 46, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 128.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 221 SdHoareTripleChecker+Valid, 9.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 217 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 8.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 305 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7086 IncrementalHoareTripleChecker+Invalid, 7392 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 305 mSolverCounterUnsat, 1 mSDtfsCounter, 7086 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 369 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3253 ImplicationChecksByTransitivity, 120.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1108occurred in iteration=10, InterpolantAutomatonStates: 109, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 11.5s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 371 NumberOfCodeBlocks, 371 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 455 ConstructedInterpolants, 0 QuantifiedInterpolants, 2270 SizeOfPredicates, 5 NumberOfNonLiveVariables, 4539 ConjunctsInSsa, 119 ConjunctsInUnsatCore, 21 InterpolantComputations, 6 PerfectInterpolantSequences, 58/2098 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