/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_open_pc8736x_gpio_change.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-14 00:12:25,198 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 00:12:25,238 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 00:12:25,243 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 00:12:25,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 00:12:25,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 00:12:25,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 00:12:25,265 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 00:12:25,265 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-14 00:12:25,265 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-14 00:12:25,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 00:12:25,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 00:12:25,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 00:12:25,266 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 00:12:25,266 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 00:12:25,267 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:12:25,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:12:25,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 00:12:25,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 00:12:25,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-14 00:12:25,268 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-14 00:12:25,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-14 00:12:25,268 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 00:12:25,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 00:12:25,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 00:12:25,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 00:12:25,486 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 00:12:25,487 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 00:12:25,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2025-04-14 00:12:26,752 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2e337ee/8a133ff0d759476fbb60d416ed5f1e51/FLAGfca4c9a8b [2025-04-14 00:12:27,139 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 00:12:27,140 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-driver-races/char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2025-04-14 00:12:27,170 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2e337ee/8a133ff0d759476fbb60d416ed5f1e51/FLAGfca4c9a8b [2025-04-14 00:12:27,827 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e2e337ee/8a133ff0d759476fbb60d416ed5f1e51 [2025-04-14 00:12:27,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 00:12:27,831 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 00:12:27,833 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 00:12:27,833 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 00:12:27,836 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 00:12:27,837 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:12:27" (1/1) ... [2025-04-14 00:12:27,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c26120a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:27, skipping insertion in model container [2025-04-14 00:12:27,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 12:12:27" (1/1) ... [2025-04-14 00:12:27,913 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 00:12:28,249 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_open_pc8736x_gpio_change.i[5520,5533] [2025-04-14 00:12:31,575 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:12:31,576 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:12:31,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:12:31,656 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 00:12:31,679 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_open_pc8736x_gpio_change.i[5520,5533] [2025-04-14 00:12:31,762 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 00:12:31,763 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 00:12:31,763 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 00:12:31,764 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 00:12:31,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-04-14 00:12:31,870 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:12:31,870 WARN L1730 CHandler]: Possible shadowing of function iminor [2025-04-14 00:12:31,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 00:12:32,178 INFO L204 MainTranslator]: Completed translation [2025-04-14 00:12:32,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32 WrapperNode [2025-04-14 00:12:32,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 00:12:32,181 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 00:12:32,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 00:12:32,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 00:12:32,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,254 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,315 INFO L138 Inliner]: procedures = 1392, calls = 1531, calls flagged for inlining = 397, calls inlined = 56, statements flattened = 750 [2025-04-14 00:12:32,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 00:12:32,319 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 00:12:32,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 00:12:32,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 00:12:32,326 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,326 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,331 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,354 INFO L175 MemorySlicer]: Split 71 memory accesses to 12 slices as follows [2, 10, 1, 4, 2, 9, 9, 1, 25, 2, 4, 2]. 35 percent of accesses are in the largest equivalence class. The 50 initializations are split as follows [2, 8, 1, 0, 2, 4, 4, 0, 25, 0, 4, 0]. The 7 writes are split as follows [0, 1, 0, 1, 0, 2, 0, 0, 0, 1, 0, 2]. [2025-04-14 00:12:32,354 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,354 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,371 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,373 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,396 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 00:12:32,397 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 00:12:32,397 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 00:12:32,397 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 00:12:32,401 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (1/1) ... [2025-04-14 00:12:32,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 00:12:32,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:12:32,434 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 00:12:32,439 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 00:12:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-04-14 00:12:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-04-14 00:12:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-04-14 00:12:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-04-14 00:12:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-04-14 00:12:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-04-14 00:12:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-04-14 00:12:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-04-14 00:12:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-04-14 00:12:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-04-14 00:12:32,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-04-14 00:12:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-04-14 00:12:32,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-14 00:12:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_change [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 00:12:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 00:12:32,459 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_pc8736x_gpio_open [2025-04-14 00:12:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_pc8736x_gpio_open [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-04-14 00:12:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-04-14 00:12:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-04-14 00:12:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-04-14 00:12:32,465 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 00:12:32,843 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 00:12:32,844 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 00:12:32,943 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6894: havoc pc8736x_gpio_open_#t~ret1142#1; [2025-04-14 00:12:32,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1664: havoc iminor_#t~mem333#1; [2025-04-14 00:12:32,944 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6702: havoc nonseekable_open_#t~nondet1100#1; [2025-04-14 00:12:33,059 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:33,059 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:33,059 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:33,059 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6871: havoc pc8736x_gpio_current_#t~bitwise1138#1; [2025-04-14 00:12:33,520 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:33,520 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6713: havoc platform_device_add_#t~nondet1102#1; [2025-04-14 00:12:33,520 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-5: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:33,520 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-10: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:33,520 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-15: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:33,520 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-20: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:33,520 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-25: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:33,520 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6680-30: havoc inb_p_#t~nondet1096#1; [2025-04-14 00:12:33,520 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6615: havoc alloc_chrdev_region_#t~nondet1085#1; [2025-04-14 00:12:33,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6915-1: SUMMARY for call ULTIMATE.dealloc(pc8736x_gpio_init_~#devid~0#1.base, pc8736x_gpio_init_~#devid~0#1.offset); srcloc: null [2025-04-14 00:12:33,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6915: havoc pc8736x_gpio_init_~#devid~0#1.base, pc8736x_gpio_init_~#devid~0#1.offset; [2025-04-14 00:12:33,521 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 00:12:33,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:33,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-8: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:33,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-16: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:33,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-24: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:33,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-32: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:33,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6791-40: havoc superio_inb_#t~ret1112#1; [2025-04-14 00:12:33,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6633: havoc cdev_add_#t~nondet1088#1; [2025-04-14 00:12:33,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6738: havoc register_chrdev_region_#t~nondet1106#1; [2025-04-14 00:12:33,521 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6607: havoc __request_region_#t~ret1083#1.base, __request_region_#t~ret1083#1.offset; [2025-04-14 00:12:33,522 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 00:12:33,523 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 00:12:33,523 INFO L318 CfgBuilder]: Performing block encoding [2025-04-14 00:12:35,109 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 00:12:35,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:12:35 BoogieIcfgContainer [2025-04-14 00:12:35,110 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 00:12:35,111 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 00:12:35,111 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 00:12:35,114 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 00:12:35,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 12:12:27" (1/3) ... [2025-04-14 00:12:35,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0544fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:12:35, skipping insertion in model container [2025-04-14 00:12:35,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 12:12:32" (2/3) ... [2025-04-14 00:12:35,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c0544fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 12:12:35, skipping insertion in model container [2025-04-14 00:12:35,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 12:12:35" (3/3) ... [2025-04-14 00:12:35,117 INFO L128 eAbstractionObserver]: Analyzing ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i [2025-04-14 00:12:35,129 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 00:12:35,132 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_pc8736x_gpio_pc8736x_gpio_open_pc8736x_gpio_change.i that has 3 procedures, 44 locations, 72 edges, 1 initial locations, 15 loop locations, and 4 error locations. [2025-04-14 00:12:35,133 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 00:12:35,229 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-14 00:12:35,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 50 places, 74 transitions, 162 flow [2025-04-14 00:12:35,293 INFO L116 PetriNetUnfolderBase]: 31/72 cut-off events. [2025-04-14 00:12:35,295 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-14 00:12:35,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 72 events. 31/72 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 115 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 7 conditions per place. [2025-04-14 00:12:35,297 INFO L82 GeneralOperation]: Start removeDead. Operand has 50 places, 74 transitions, 162 flow [2025-04-14 00:12:35,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 70 transitions, 149 flow [2025-04-14 00:12:35,304 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-14 00:12:35,315 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;@682cc487, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 00:12:35,315 INFO L341 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2025-04-14 00:12:35,325 INFO L177 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-04-14 00:12:35,325 INFO L116 PetriNetUnfolderBase]: 5/9 cut-off events. [2025-04-14 00:12:35,325 INFO L117 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-04-14 00:12:35,325 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:35,326 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-04-14 00:12:35,326 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:35,330 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:35,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1903663, now seen corresponding path program 1 times [2025-04-14 00:12:35,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:35,338 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466232210] [2025-04-14 00:12:35,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:35,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:35,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-14 00:12:35,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-14 00:12:35,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:35,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:36,167 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 00:12:36,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:36,167 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466232210] [2025-04-14 00:12:36,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466232210] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:36,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:12:36,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-14 00:12:36,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365861109] [2025-04-14 00:12:36,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:36,174 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-14 00:12:36,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:36,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-14 00:12:36,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-14 00:12:36,195 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 74 [2025-04-14 00:12:36,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 70 transitions, 149 flow. Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:36,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:36,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 74 [2025-04-14 00:12:36,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:36,432 INFO L116 PetriNetUnfolderBase]: 179/311 cut-off events. [2025-04-14 00:12:36,433 INFO L117 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2025-04-14 00:12:36,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 642 conditions, 311 events. 179/311 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 873 event pairs, 118 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 494. Up to 305 conditions per place. [2025-04-14 00:12:36,436 INFO L140 encePairwiseOnDemand]: 59/74 looper letters, 53 selfloop transitions, 0 changer transitions 1/55 dead transitions. [2025-04-14 00:12:36,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 55 transitions, 227 flow [2025-04-14 00:12:36,439 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 00:12:36,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-04-14 00:12:36,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 75 transitions. [2025-04-14 00:12:36,447 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.5067567567567568 [2025-04-14 00:12:36,448 INFO L175 Difference]: Start difference. First operand has 46 places, 70 transitions, 149 flow. Second operand 2 states and 75 transitions. [2025-04-14 00:12:36,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 55 transitions, 227 flow [2025-04-14 00:12:36,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 55 transitions, 222 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-04-14 00:12:36,453 INFO L231 Difference]: Finished difference. Result has 41 places, 54 transitions, 112 flow [2025-04-14 00:12:36,456 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=112, PETRI_PLACES=41, PETRI_TRANSITIONS=54} [2025-04-14 00:12:36,459 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -5 predicate places. [2025-04-14 00:12:36,459 INFO L485 AbstractCegarLoop]: Abstraction has has 41 places, 54 transitions, 112 flow [2025-04-14 00:12:36,460 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-14 00:12:36,460 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:36,460 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:36,460 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 00:12:36,460 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:36,461 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:36,461 INFO L85 PathProgramCache]: Analyzing trace with hash -875228572, now seen corresponding path program 1 times [2025-04-14 00:12:36,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:36,461 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869461901] [2025-04-14 00:12:36,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:36,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:36,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-14 00:12:36,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-14 00:12:36,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:36,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:36,674 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 00:12:36,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:36,674 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869461901] [2025-04-14 00:12:36,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869461901] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:36,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:12:36,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 00:12:36,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304879897] [2025-04-14 00:12:36,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:36,675 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 00:12:36,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:36,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 00:12:36,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-04-14 00:12:36,676 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 74 [2025-04-14 00:12:36,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 54 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 00:12:36,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:36,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 74 [2025-04-14 00:12:36,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:36,933 INFO L116 PetriNetUnfolderBase]: 247/421 cut-off events. [2025-04-14 00:12:36,933 INFO L117 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-04-14 00:12:36,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 838 conditions, 421 events. 247/421 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1377 event pairs, 22 based on Foata normal form. 0/346 useless extension candidates. Maximal degree in co-relation 835. Up to 207 conditions per place. [2025-04-14 00:12:36,936 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 68 selfloop transitions, 3 changer transitions 0/72 dead transitions. [2025-04-14 00:12:36,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 72 transitions, 292 flow [2025-04-14 00:12:36,936 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 00:12:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-04-14 00:12:36,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2025-04-14 00:12:36,937 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.28378378378378377 [2025-04-14 00:12:36,937 INFO L175 Difference]: Start difference. First operand has 41 places, 54 transitions, 112 flow. Second operand 4 states and 84 transitions. [2025-04-14 00:12:36,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 72 transitions, 292 flow [2025-04-14 00:12:36,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 72 transitions, 292 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-04-14 00:12:36,940 INFO L231 Difference]: Finished difference. Result has 44 places, 55 transitions, 126 flow [2025-04-14 00:12:36,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=44, PETRI_TRANSITIONS=55} [2025-04-14 00:12:36,940 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2025-04-14 00:12:36,940 INFO L485 AbstractCegarLoop]: Abstraction has has 44 places, 55 transitions, 126 flow [2025-04-14 00:12:36,940 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 00:12:36,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:36,941 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:36,941 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 00:12:36,941 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:36,941 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:36,941 INFO L85 PathProgramCache]: Analyzing trace with hash -932427292, now seen corresponding path program 1 times [2025-04-14 00:12:36,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:36,941 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127458729] [2025-04-14 00:12:36,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:36,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:36,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-14 00:12:37,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-14 00:12:37,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:37,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:37,088 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 00:12:37,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:37,088 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127458729] [2025-04-14 00:12:37,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127458729] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:37,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:12:37,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 00:12:37,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054578753] [2025-04-14 00:12:37,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:37,089 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:12:37,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:37,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:12:37,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:12:37,089 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 74 [2025-04-14 00:12:37,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 55 transitions, 126 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 00:12:37,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:37,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 74 [2025-04-14 00:12:37,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:37,334 INFO L116 PetriNetUnfolderBase]: 309/539 cut-off events. [2025-04-14 00:12:37,334 INFO L117 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2025-04-14 00:12:37,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1125 conditions, 539 events. 309/539 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2046 event pairs, 158 based on Foata normal form. 0/478 useless extension candidates. Maximal degree in co-relation 1120. Up to 408 conditions per place. [2025-04-14 00:12:37,337 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 60 selfloop transitions, 3 changer transitions 0/64 dead transitions. [2025-04-14 00:12:37,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 64 transitions, 276 flow [2025-04-14 00:12:37,338 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:12:37,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:12:37,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2025-04-14 00:12:37,339 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.32432432432432434 [2025-04-14 00:12:37,339 INFO L175 Difference]: Start difference. First operand has 44 places, 55 transitions, 126 flow. Second operand 3 states and 72 transitions. [2025-04-14 00:12:37,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 64 transitions, 276 flow [2025-04-14 00:12:37,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 64 transitions, 271 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-04-14 00:12:37,341 INFO L231 Difference]: Finished difference. Result has 45 places, 57 transitions, 147 flow [2025-04-14 00:12:37,341 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=45, PETRI_TRANSITIONS=57} [2025-04-14 00:12:37,341 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2025-04-14 00:12:37,341 INFO L485 AbstractCegarLoop]: Abstraction has has 45 places, 57 transitions, 147 flow [2025-04-14 00:12:37,341 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 00:12:37,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:37,342 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:37,342 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-14 00:12:37,342 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:37,342 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:37,342 INFO L85 PathProgramCache]: Analyzing trace with hash -932486874, now seen corresponding path program 1 times [2025-04-14 00:12:37,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:37,342 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986963173] [2025-04-14 00:12:37,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:37,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:37,380 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-04-14 00:12:37,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-04-14 00:12:37,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:37,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:37,766 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 00:12:37,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:37,766 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986963173] [2025-04-14 00:12:37,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986963173] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:37,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 00:12:37,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-14 00:12:37,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965571141] [2025-04-14 00:12:37,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:37,767 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:12:37,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:37,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:12:37,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 00:12:37,767 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 74 [2025-04-14 00:12:37,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 57 transitions, 147 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 00:12:37,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:37,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 74 [2025-04-14 00:12:37,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:37,955 INFO L116 PetriNetUnfolderBase]: 309/540 cut-off events. [2025-04-14 00:12:37,955 INFO L117 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2025-04-14 00:12:37,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1191 conditions, 540 events. 309/540 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2056 event pairs, 206 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 1185. Up to 512 conditions per place. [2025-04-14 00:12:37,961 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 55 selfloop transitions, 2 changer transitions 0/58 dead transitions. [2025-04-14 00:12:37,961 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 58 transitions, 263 flow [2025-04-14 00:12:37,962 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:12:37,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:12:37,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 65 transitions. [2025-04-14 00:12:37,963 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.2927927927927928 [2025-04-14 00:12:37,963 INFO L175 Difference]: Start difference. First operand has 45 places, 57 transitions, 147 flow. Second operand 3 states and 65 transitions. [2025-04-14 00:12:37,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 58 transitions, 263 flow [2025-04-14 00:12:37,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 58 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-04-14 00:12:37,967 INFO L231 Difference]: Finished difference. Result has 47 places, 58 transitions, 158 flow [2025-04-14 00:12:37,967 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=47, PETRI_TRANSITIONS=58} [2025-04-14 00:12:37,968 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2025-04-14 00:12:37,969 INFO L485 AbstractCegarLoop]: Abstraction has has 47 places, 58 transitions, 158 flow [2025-04-14 00:12:37,969 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 00:12:37,969 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-04-14 00:12:37,969 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-14 00:12:37,969 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-14 00:12:37,969 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2025-04-14 00:12:37,969 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 00:12:37,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1468659229, now seen corresponding path program 1 times [2025-04-14 00:12:37,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 00:12:37,970 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900029726] [2025-04-14 00:12:37,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:37,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 00:12:38,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-14 00:12:38,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-14 00:12:38,056 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:38,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:38,341 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 00:12:38,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 00:12:38,342 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900029726] [2025-04-14 00:12:38,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900029726] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 00:12:38,342 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953688192] [2025-04-14 00:12:38,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 00:12:38,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:38,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 00:12:38,344 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 00:12:38,346 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 00:12:38,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-14 00:12:38,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-14 00:12:38,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 00:12:38,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 00:12:38,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-14 00:12:38,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 00:12:38,769 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 00:12:38,770 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-14 00:12:38,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953688192] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 00:12:38,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-14 00:12:38,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2025-04-14 00:12:38,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027004162] [2025-04-14 00:12:38,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 00:12:38,770 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 00:12:38,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 00:12:38,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 00:12:38,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-14 00:12:38,772 INFO L464 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 74 [2025-04-14 00:12:38,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 58 transitions, 158 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 00:12:38,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-04-14 00:12:38,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 74 [2025-04-14 00:12:38,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-04-14 00:12:38,945 INFO L116 PetriNetUnfolderBase]: 301/525 cut-off events. [2025-04-14 00:12:38,945 INFO L117 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2025-04-14 00:12:38,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1154 conditions, 525 events. 301/525 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2009 event pairs, 30 based on Foata normal form. 7/499 useless extension candidates. Maximal degree in co-relation 1147. Up to 378 conditions per place. [2025-04-14 00:12:38,947 INFO L140 encePairwiseOnDemand]: 70/74 looper letters, 0 selfloop transitions, 0 changer transitions 61/61 dead transitions. [2025-04-14 00:12:38,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 61 transitions, 285 flow [2025-04-14 00:12:38,947 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 00:12:38,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-04-14 00:12:38,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2025-04-14 00:12:38,948 INFO L509 CegarLoopForPetriNet]: DFA transition density 0.2972972972972973 [2025-04-14 00:12:38,948 INFO L175 Difference]: Start difference. First operand has 47 places, 58 transitions, 158 flow. Second operand 3 states and 66 transitions. [2025-04-14 00:12:38,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 61 transitions, 285 flow [2025-04-14 00:12:38,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 61 transitions, 281 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-04-14 00:12:38,949 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2025-04-14 00:12:38,949 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2025-04-14 00:12:38,950 INFO L279 CegarLoopForPetriNet]: 46 programPoint places, 1 predicate places. [2025-04-14 00:12:38,950 INFO L485 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2025-04-14 00:12:38,950 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 00:12:38,953 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2025-04-14 00:12:38,954 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2025-04-14 00:12:38,954 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 9 remaining) [2025-04-14 00:12:38,954 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 9 remaining) [2025-04-14 00:12:38,954 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2025-04-14 00:12:38,954 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2025-04-14 00:12:38,954 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_openErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2025-04-14 00:12:38,954 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2025-04-14 00:12:38,954 INFO L790 garLoopResultBuilder]: Registering result SAFE for location whoop_wrapper_pc8736x_gpio_changeErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2025-04-14 00:12:38,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-04-14 00:12:39,154 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 00:12:39,155 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-04-14 00:12:39,159 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 00:12:39,160 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 00:12:39,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 12:12:39 BasicIcfg [2025-04-14 00:12:39,163 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 00:12:39,164 INFO L158 Benchmark]: Toolchain (without parser) took 11333.31ms. Allocated memory was 155.2MB in the beginning and 838.9MB in the end (delta: 683.7MB). Free memory was 96.7MB in the beginning and 291.7MB in the end (delta: -195.0MB). Peak memory consumption was 490.3MB. Max. memory is 8.0GB. [2025-04-14 00:12:39,164 INFO L158 Benchmark]: CDTParser took 1.30ms. Allocated memory is still 155.2MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 105.7kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 00:12:39,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4347.76ms. Allocated memory was 155.2MB in the beginning and 436.2MB in the end (delta: 281.0MB). Free memory was 96.1MB in the beginning and 358.3MB in the end (delta: -262.2MB). Peak memory consumption was 108.6MB. Max. memory is 8.0GB. [2025-04-14 00:12:39,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 134.62ms. Allocated memory is still 436.2MB. Free memory was 358.3MB in the beginning and 345.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-14 00:12:39,164 INFO L158 Benchmark]: Boogie Preprocessor took 76.94ms. Allocated memory is still 436.2MB. Free memory was 345.7MB in the beginning and 335.4MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-14 00:12:39,165 INFO L158 Benchmark]: IcfgBuilder took 2712.90ms. Allocated memory is still 436.2MB. Free memory was 335.4MB in the beginning and 180.5MB in the end (delta: 154.9MB). Peak memory consumption was 270.2MB. Max. memory is 8.0GB. [2025-04-14 00:12:39,165 INFO L158 Benchmark]: TraceAbstraction took 4052.04ms. Allocated memory was 436.2MB in the beginning and 838.9MB in the end (delta: 402.7MB). Free memory was 180.5MB in the beginning and 291.7MB in the end (delta: -111.2MB). Peak memory consumption was 291.6MB. Max. memory is 8.0GB. [2025-04-14 00:12:39,166 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.30ms. Allocated memory is still 155.2MB. Free memory was 87.0MB in the beginning and 86.9MB in the end (delta: 105.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 4347.76ms. Allocated memory was 155.2MB in the beginning and 436.2MB in the end (delta: 281.0MB). Free memory was 96.1MB in the beginning and 358.3MB in the end (delta: -262.2MB). Peak memory consumption was 108.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 134.62ms. Allocated memory is still 436.2MB. Free memory was 358.3MB in the beginning and 345.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 76.94ms. Allocated memory is still 436.2MB. Free memory was 345.7MB in the beginning and 335.4MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * IcfgBuilder took 2712.90ms. Allocated memory is still 436.2MB. Free memory was 335.4MB in the beginning and 180.5MB in the end (delta: 154.9MB). Peak memory consumption was 270.2MB. Max. memory is 8.0GB. * TraceAbstraction took 4052.04ms. Allocated memory was 436.2MB in the beginning and 838.9MB in the end (delta: 402.7MB). Free memory was 180.5MB in the beginning and 291.7MB in the end (delta: -111.2MB). Peak memory consumption was 291.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 3228]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] - GenericResultAtLocation [Line: 5817]: Unsoundness Warning Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 175]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 175]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 175]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 67 locations, 108 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: 3.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 65 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 480 IncrementalHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 480 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 127 SizeOfPredicates, 1 NumberOfNonLiveVariables, 669 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-14 00:12:39,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...