./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:12:36,295 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:12:36,340 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-04 02:12:36,344 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:12:36,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:12:36,360 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:12:36,361 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:12:36,361 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:12:36,361 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:12:36,361 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:12:36,361 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:12:36,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:12:36,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:12:36,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:12:36,361 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:12:36,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:12:36,362 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:12:36,362 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:12:36,362 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:12:36,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:12:36,363 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:12:36,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:12:36,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:12:36,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:12:36,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:12:36,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:12:36,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:12:36,363 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:12:36,363 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 [2025-03-04 02:12:36,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:12:36,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:12:36,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:12:36,614 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:12:36,615 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:12:36,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2025-03-04 02:12:37,872 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6107581b6/fbf2bd0df16b4bf5b0cb51e54d1243f9/FLAGe2fb056a3 [2025-03-04 02:12:38,401 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:12:38,402 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2025-03-04 02:12:38,450 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6107581b6/fbf2bd0df16b4bf5b0cb51e54d1243f9/FLAGe2fb056a3 [2025-03-04 02:12:38,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6107581b6/fbf2bd0df16b4bf5b0cb51e54d1243f9 [2025-03-04 02:12:38,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:12:38,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:12:38,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:12:38,472 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:12:38,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:12:38,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:12:38" (1/1) ... [2025-03-04 02:12:38,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197d42d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:38, skipping insertion in model container [2025-03-04 02:12:38,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:12:38" (1/1) ... [2025-03-04 02:12:38,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:12:38,845 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2025-03-04 02:12:42,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:12:42,464 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:12:42,477 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2025-03-04 02:12:42,542 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] [2025-03-04 02:12:42,543 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] [2025-03-04 02:12:42,544 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] [2025-03-04 02:12:42,544 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] [2025-03-04 02:12:42,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2025-03-04 02:12:42,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:12:42,949 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:12:42,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42 WrapperNode [2025-03-04 02:12:42,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:12:42,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:12:42,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:12:42,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:12:42,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,060 INFO L138 Inliner]: procedures = 1354, calls = 1479, calls flagged for inlining = 352, calls inlined = 18, statements flattened = 394 [2025-03-04 02:12:43,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:12:43,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:12:43,062 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:12:43,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:12:43,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,073 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,096 INFO L175 MemorySlicer]: Split 52 memory accesses to 7 slices as follows [2, 1, 4, 2, 31, 3, 9]. 60 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 1, 4, 2, 31, 3, 0]. The 3 writes are split as follows [0, 0, 0, 0, 0, 0, 3]. [2025-03-04 02:12:43,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,119 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,141 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:12:43,142 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:12:43,142 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:12:43,142 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:12:43,146 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (1/1) ... [2025-03-04 02:12:43,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:12:43,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:12:43,177 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) [2025-03-04 02:12:43,184 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 [2025-03-04 02:12:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 02:12:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 02:12:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 02:12:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 02:12:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-04 02:12:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-04 02:12:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-04 02:12:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 02:12:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:12:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:12:43,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:12:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 02:12:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 02:12:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 02:12:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 02:12:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-04 02:12:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-04 02:12:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-04 02:12:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2025-03-04 02:12:43,200 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2025-03-04 02:12:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 02:12:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 02:12:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 02:12:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 02:12:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 02:12:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 02:12:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-04 02:12:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2025-03-04 02:12:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2025-03-04 02:12:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2025-03-04 02:12:43,201 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2025-03-04 02:12:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:12:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 02:12:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 02:12:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 02:12:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-04 02:12:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-04 02:12:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-04 02:12:43,203 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 02:12:43,511 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:12:43,512 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:12:43,689 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2025-03-04 02:12:43,690 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6543: havoc __put_user_#t~nondet1063#1; [2025-03-04 02:12:43,690 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6636: havoc nvram_read_byte_#t~nondet1081#1; [2025-03-04 02:12:43,775 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2025-03-04 02:12:43,775 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6535: havoc __get_user_#t~nondet1061#1; [2025-03-04 02:12:44,011 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6632: havoc nvram_get_size_#t~nondet1080#1; [2025-03-04 02:12:44,011 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6650: havoc printk_#t~nondet1083#1; [2025-03-04 02:12:44,012 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6624: havoc misc_register_#t~nondet1078#1; [2025-03-04 02:12:44,012 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 02:12:44,013 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:12:44,495 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:12:44,495 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:12:44,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:12:44 BoogieIcfgContainer [2025-03-04 02:12:44,495 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:12:44,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:12:44,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:12:44,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:12:44,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:12:38" (1/3) ... [2025-03-04 02:12:44,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe7ee02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:12:44, skipping insertion in model container [2025-03-04 02:12:44,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:12:42" (2/3) ... [2025-03-04 02:12:44,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe7ee02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:12:44, skipping insertion in model container [2025-03-04 02:12:44,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:12:44" (3/3) ... [2025-03-04 02:12:44,502 INFO L128 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2025-03-04 02:12:44,518 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:12:44,521 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_generic_nvram_read_nvram_write_nvram.i that has 3 procedures, 43 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2025-03-04 02:12:44,522 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 02:12:44,580 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 02:12:44,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 52 transitions, 118 flow [2025-03-04 02:12:44,642 INFO L124 PetriNetUnfolderBase]: 10/50 cut-off events. [2025-03-04 02:12:44,643 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-04 02:12:44,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 50 events. 10/50 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 102 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 47. Up to 4 conditions per place. [2025-03-04 02:12:44,646 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 52 transitions, 118 flow [2025-03-04 02:12:44,648 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 48 transitions, 105 flow [2025-03-04 02:12:44,658 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:12:44,666 INFO L333 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;@54cc1df3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:12:44,667 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-03-04 02:12:44,681 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 02:12:44,681 INFO L124 PetriNetUnfolderBase]: 8/41 cut-off events. [2025-03-04 02:12:44,681 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 02:12:44,682 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:12:44,682 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:12:44,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:12:44,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:12:44,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1981130031, now seen corresponding path program 1 times [2025-03-04 02:12:44,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:12:44,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256083658] [2025-03-04 02:12:44,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:12:44,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:12:44,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-04 02:12:45,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-04 02:12:45,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:12:45,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:12:46,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:12:46,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:12:46,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256083658] [2025-03-04 02:12:46,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256083658] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:12:46,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:12:46,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 02:12:46,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332265872] [2025-03-04 02:12:46,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:12:46,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 02:12:46,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:12:46,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 02:12:46,053 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:12:46,071 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-03-04 02:12:46,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 105 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2025-03-04 02:12:46,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:12:46,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-03-04 02:12:46,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:12:46,590 INFO L124 PetriNetUnfolderBase]: 818/1438 cut-off events. [2025-03-04 02:12:46,590 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2025-03-04 02:12:46,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2754 conditions, 1438 events. 818/1438 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6507 event pairs, 332 based on Foata normal form. 57/1336 useless extension candidates. Maximal degree in co-relation 2675. Up to 811 conditions per place. [2025-03-04 02:12:46,599 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 75 selfloop transitions, 13 changer transitions 24/121 dead transitions. [2025-03-04 02:12:46,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 121 transitions, 484 flow [2025-03-04 02:12:46,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:12:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 02:12:46,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 210 transitions. [2025-03-04 02:12:46,609 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5048076923076923 [2025-03-04 02:12:46,610 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 105 flow. Second operand 8 states and 210 transitions. [2025-03-04 02:12:46,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 121 transitions, 484 flow [2025-03-04 02:12:46,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 121 transitions, 476 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-04 02:12:46,619 INFO L231 Difference]: Finished difference. Result has 53 places, 54 transitions, 167 flow [2025-03-04 02:12:46,621 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=167, PETRI_PLACES=53, PETRI_TRANSITIONS=54} [2025-03-04 02:12:46,625 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 8 predicate places. [2025-03-04 02:12:46,625 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 54 transitions, 167 flow [2025-03-04 02:12:46,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2025-03-04 02:12:46,625 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:12:46,625 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:12:46,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 02:12:46,625 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:12:46,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:12:46,626 INFO L85 PathProgramCache]: Analyzing trace with hash 16289508, now seen corresponding path program 1 times [2025-03-04 02:12:46,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:12:46,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919524678] [2025-03-04 02:12:46,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:12:46,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:12:46,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 02:12:46,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 02:12:46,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:12:46,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:12:47,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:12:47,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:12:47,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919524678] [2025-03-04 02:12:47,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919524678] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:12:47,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:12:47,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 02:12:47,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562772350] [2025-03-04 02:12:47,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:12:47,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 02:12:47,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:12:47,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 02:12:47,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:12:47,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 52 [2025-03-04 02:12:47,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 54 transitions, 167 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2025-03-04 02:12:47,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:12:47,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 52 [2025-03-04 02:12:47,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:12:47,719 INFO L124 PetriNetUnfolderBase]: 1019/1781 cut-off events. [2025-03-04 02:12:47,719 INFO L125 PetriNetUnfolderBase]: For 552/556 co-relation queries the response was YES. [2025-03-04 02:12:47,724 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4094 conditions, 1781 events. 1019/1781 cut-off events. For 552/556 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8675 event pairs, 356 based on Foata normal form. 0/1694 useless extension candidates. Maximal degree in co-relation 3904. Up to 826 conditions per place. [2025-03-04 02:12:47,728 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 65 selfloop transitions, 13 changer transitions 69/157 dead transitions. [2025-03-04 02:12:47,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 157 transitions, 793 flow [2025-03-04 02:12:47,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-04 02:12:47,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-04 02:12:47,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 214 transitions. [2025-03-04 02:12:47,732 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5144230769230769 [2025-03-04 02:12:47,732 INFO L175 Difference]: Start difference. First operand has 53 places, 54 transitions, 167 flow. Second operand 8 states and 214 transitions. [2025-03-04 02:12:47,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 157 transitions, 793 flow [2025-03-04 02:12:47,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 157 transitions, 793 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 02:12:47,740 INFO L231 Difference]: Finished difference. Result has 66 places, 52 transitions, 231 flow [2025-03-04 02:12:47,740 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=231, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2025-03-04 02:12:47,741 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 21 predicate places. [2025-03-04 02:12:47,741 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 231 flow [2025-03-04 02:12:47,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2025-03-04 02:12:47,741 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:12:47,741 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:12:47,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 02:12:47,741 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:12:47,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:12:47,742 INFO L85 PathProgramCache]: Analyzing trace with hash -508827190, now seen corresponding path program 1 times [2025-03-04 02:12:47,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:12:47,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640978714] [2025-03-04 02:12:47,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:12:47,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:12:47,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 02:12:47,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 02:12:47,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:12:47,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:12:49,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:12:49,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:12:49,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640978714] [2025-03-04 02:12:49,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640978714] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:12:49,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:12:49,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-04 02:12:49,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775939695] [2025-03-04 02:12:49,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:12:49,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-04 02:12:49,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:12:49,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-04 02:12:49,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2025-03-04 02:12:49,835 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-04 02:12:49,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 231 flow. Second operand has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 14 states have internal predecessors, (160), 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) [2025-03-04 02:12:49,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:12:49,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-04 02:12:49,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:12:52,342 INFO L124 PetriNetUnfolderBase]: 1384/2606 cut-off events. [2025-03-04 02:12:52,342 INFO L125 PetriNetUnfolderBase]: For 2523/2523 co-relation queries the response was YES. [2025-03-04 02:12:52,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7396 conditions, 2606 events. 1384/2606 cut-off events. For 2523/2523 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 15468 event pairs, 108 based on Foata normal form. 10/2616 useless extension candidates. Maximal degree in co-relation 7352. Up to 664 conditions per place. [2025-03-04 02:12:52,358 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 139 selfloop transitions, 35 changer transitions 89/271 dead transitions. [2025-03-04 02:12:52,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 271 transitions, 1766 flow [2025-03-04 02:12:52,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-03-04 02:12:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-03-04 02:12:52,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 395 transitions. [2025-03-04 02:12:52,361 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.422008547008547 [2025-03-04 02:12:52,361 INFO L175 Difference]: Start difference. First operand has 66 places, 52 transitions, 231 flow. Second operand 18 states and 395 transitions. [2025-03-04 02:12:52,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 271 transitions, 1766 flow [2025-03-04 02:12:52,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 271 transitions, 1738 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-03-04 02:12:52,381 INFO L231 Difference]: Finished difference. Result has 88 places, 79 transitions, 600 flow [2025-03-04 02:12:52,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=600, PETRI_PLACES=88, PETRI_TRANSITIONS=79} [2025-03-04 02:12:52,382 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 43 predicate places. [2025-03-04 02:12:52,383 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 79 transitions, 600 flow [2025-03-04 02:12:52,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 14 states have internal predecessors, (160), 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) [2025-03-04 02:12:52,383 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:12:52,383 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:12:52,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 02:12:52,383 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:12:52,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:12:52,384 INFO L85 PathProgramCache]: Analyzing trace with hash -869209816, now seen corresponding path program 2 times [2025-03-04 02:12:52,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:12:52,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646667981] [2025-03-04 02:12:52,384 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 02:12:52,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:12:52,421 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-03-04 02:12:52,498 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 02:12:52,498 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 02:12:52,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:12:54,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:12:54,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:12:54,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646667981] [2025-03-04 02:12:54,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646667981] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:12:54,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:12:54,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 02:12:54,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287580493] [2025-03-04 02:12:54,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:12:54,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 02:12:54,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:12:54,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 02:12:54,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:12:54,601 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-04 02:12:54,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 79 transitions, 600 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 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) [2025-03-04 02:12:54,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:12:54,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-04 02:12:54,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:12:57,448 INFO L124 PetriNetUnfolderBase]: 3288/6124 cut-off events. [2025-03-04 02:12:57,448 INFO L125 PetriNetUnfolderBase]: For 16256/16272 co-relation queries the response was YES. [2025-03-04 02:12:57,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22057 conditions, 6124 events. 3288/6124 cut-off events. For 16256/16272 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 43400 event pairs, 241 based on Foata normal form. 26/6150 useless extension candidates. Maximal degree in co-relation 17694. Up to 1486 conditions per place. [2025-03-04 02:12:57,484 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 214 selfloop transitions, 101 changer transitions 109/432 dead transitions. [2025-03-04 02:12:57,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 432 transitions, 3917 flow [2025-03-04 02:12:57,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-04 02:12:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2025-03-04 02:12:57,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 535 transitions. [2025-03-04 02:12:57,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4115384615384615 [2025-03-04 02:12:57,486 INFO L175 Difference]: Start difference. First operand has 88 places, 79 transitions, 600 flow. Second operand 25 states and 535 transitions. [2025-03-04 02:12:57,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 432 transitions, 3917 flow [2025-03-04 02:12:57,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 432 transitions, 3780 flow, removed 43 selfloop flow, removed 5 redundant places. [2025-03-04 02:12:57,547 INFO L231 Difference]: Finished difference. Result has 118 places, 172 transitions, 1820 flow [2025-03-04 02:12:57,547 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1820, PETRI_PLACES=118, PETRI_TRANSITIONS=172} [2025-03-04 02:12:57,547 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 73 predicate places. [2025-03-04 02:12:57,547 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 172 transitions, 1820 flow [2025-03-04 02:12:57,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 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) [2025-03-04 02:12:57,548 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:12:57,548 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:12:57,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 02:12:57,548 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:12:57,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:12:57,548 INFO L85 PathProgramCache]: Analyzing trace with hash -785267414, now seen corresponding path program 3 times [2025-03-04 02:12:57,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:12:57,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984270153] [2025-03-04 02:12:57,549 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 02:12:57,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:12:57,579 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 1 equivalence classes. [2025-03-04 02:12:57,638 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 02:12:57,638 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 02:12:57,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:12:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:12:59,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:12:59,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984270153] [2025-03-04 02:12:59,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984270153] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:12:59,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:12:59,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 02:12:59,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028688512] [2025-03-04 02:12:59,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:12:59,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 02:12:59,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:12:59,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 02:12:59,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:12:59,296 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-04 02:12:59,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 172 transitions, 1820 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 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) [2025-03-04 02:12:59,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:12:59,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-04 02:12:59,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:13:01,432 INFO L124 PetriNetUnfolderBase]: 3847/7218 cut-off events. [2025-03-04 02:13:01,432 INFO L125 PetriNetUnfolderBase]: For 36019/36035 co-relation queries the response was YES. [2025-03-04 02:13:01,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31215 conditions, 7218 events. 3847/7218 cut-off events. For 36019/36035 co-relation queries the response was YES. Maximal size of possible extension queue 352. Compared 53572 event pairs, 241 based on Foata normal form. 34/7252 useless extension candidates. Maximal degree in co-relation 30953. Up to 1436 conditions per place. [2025-03-04 02:13:01,489 INFO L140 encePairwiseOnDemand]: 35/52 looper letters, 226 selfloop transitions, 123 changer transitions 101/458 dead transitions. [2025-03-04 02:13:01,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 458 transitions, 5156 flow [2025-03-04 02:13:01,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-03-04 02:13:01,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2025-03-04 02:13:01,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 440 transitions. [2025-03-04 02:13:01,491 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2025-03-04 02:13:01,491 INFO L175 Difference]: Start difference. First operand has 118 places, 172 transitions, 1820 flow. Second operand 20 states and 440 transitions. [2025-03-04 02:13:01,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 458 transitions, 5156 flow [2025-03-04 02:13:01,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 458 transitions, 5060 flow, removed 47 selfloop flow, removed 3 redundant places. [2025-03-04 02:13:01,658 INFO L231 Difference]: Finished difference. Result has 145 places, 212 transitions, 2769 flow [2025-03-04 02:13:01,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1766, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=2769, PETRI_PLACES=145, PETRI_TRANSITIONS=212} [2025-03-04 02:13:01,658 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 100 predicate places. [2025-03-04 02:13:01,658 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 212 transitions, 2769 flow [2025-03-04 02:13:01,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 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) [2025-03-04 02:13:01,659 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:13:01,659 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:13:01,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 02:13:01,659 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:13:01,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:13:01,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1386417610, now seen corresponding path program 4 times [2025-03-04 02:13:01,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:13:01,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536612972] [2025-03-04 02:13:01,660 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 02:13:01,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:13:01,689 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-03-04 02:13:01,755 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 02:13:01,755 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 02:13:01,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:13:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:13:03,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:13:03,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536612972] [2025-03-04 02:13:03,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536612972] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:13:03,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:13:03,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-04 02:13:03,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328736617] [2025-03-04 02:13:03,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:13:03,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-04 02:13:03,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:13:03,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-04 02:13:03,382 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2025-03-04 02:13:03,538 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-04 02:13:03,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 212 transitions, 2769 flow. Second operand has 15 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 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) [2025-03-04 02:13:03,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:13:03,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-04 02:13:03,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:13:06,541 INFO L124 PetriNetUnfolderBase]: 4722/9028 cut-off events. [2025-03-04 02:13:06,541 INFO L125 PetriNetUnfolderBase]: For 71865/71873 co-relation queries the response was YES. [2025-03-04 02:13:06,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44330 conditions, 9028 events. 4722/9028 cut-off events. For 71865/71873 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 71432 event pairs, 443 based on Foata normal form. 14/9038 useless extension candidates. Maximal degree in co-relation 44029. Up to 2591 conditions per place. [2025-03-04 02:13:06,605 INFO L140 encePairwiseOnDemand]: 31/52 looper letters, 294 selfloop transitions, 180 changer transitions 85/573 dead transitions. [2025-03-04 02:13:06,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 573 transitions, 8077 flow [2025-03-04 02:13:06,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-04 02:13:06,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-04 02:13:06,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 495 transitions. [2025-03-04 02:13:06,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4326923076923077 [2025-03-04 02:13:06,607 INFO L175 Difference]: Start difference. First operand has 145 places, 212 transitions, 2769 flow. Second operand 22 states and 495 transitions. [2025-03-04 02:13:06,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 573 transitions, 8077 flow [2025-03-04 02:13:06,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 573 transitions, 7687 flow, removed 109 selfloop flow, removed 5 redundant places. [2025-03-04 02:13:06,996 INFO L231 Difference]: Finished difference. Result has 176 places, 321 transitions, 4983 flow [2025-03-04 02:13:06,996 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=2610, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4983, PETRI_PLACES=176, PETRI_TRANSITIONS=321} [2025-03-04 02:13:06,997 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 131 predicate places. [2025-03-04 02:13:06,997 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 321 transitions, 4983 flow [2025-03-04 02:13:06,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.333333333333334) internal successors, (170), 15 states have internal predecessors, (170), 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) [2025-03-04 02:13:06,997 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:13:06,997 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:13:06,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 02:13:06,998 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:13:06,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:13:06,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2036821566, now seen corresponding path program 1 times [2025-03-04 02:13:06,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:13:06,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314338873] [2025-03-04 02:13:06,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:13:06,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:13:07,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-04 02:13:07,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 02:13:07,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:13:07,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:13:08,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:13:08,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:13:08,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314338873] [2025-03-04 02:13:08,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314338873] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:13:08,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:13:08,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 02:13:08,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189200432] [2025-03-04 02:13:08,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:13:08,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 02:13:08,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:13:08,796 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 02:13:08,796 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:13:08,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-04 02:13:08,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 321 transitions, 4983 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 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) [2025-03-04 02:13:08,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:13:08,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-04 02:13:08,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:13:11,691 INFO L124 PetriNetUnfolderBase]: 4847/9288 cut-off events. [2025-03-04 02:13:11,691 INFO L125 PetriNetUnfolderBase]: For 94970/95022 co-relation queries the response was YES. [2025-03-04 02:13:11,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49463 conditions, 9288 events. 4847/9288 cut-off events. For 94970/95022 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 73685 event pairs, 222 based on Foata normal form. 43/9323 useless extension candidates. Maximal degree in co-relation 49126. Up to 2854 conditions per place. [2025-03-04 02:13:11,763 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 279 selfloop transitions, 230 changer transitions 148/673 dead transitions. [2025-03-04 02:13:11,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 673 transitions, 10723 flow [2025-03-04 02:13:11,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-04 02:13:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-04 02:13:11,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 452 transitions. [2025-03-04 02:13:11,765 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3951048951048951 [2025-03-04 02:13:11,765 INFO L175 Difference]: Start difference. First operand has 176 places, 321 transitions, 4983 flow. Second operand 22 states and 452 transitions. [2025-03-04 02:13:11,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 673 transitions, 10723 flow [2025-03-04 02:13:12,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 673 transitions, 10208 flow, removed 252 selfloop flow, removed 5 redundant places. [2025-03-04 02:13:12,242 INFO L231 Difference]: Finished difference. Result has 201 places, 408 transitions, 6820 flow [2025-03-04 02:13:12,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=4712, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=6820, PETRI_PLACES=201, PETRI_TRANSITIONS=408} [2025-03-04 02:13:12,244 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 156 predicate places. [2025-03-04 02:13:12,244 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 408 transitions, 6820 flow [2025-03-04 02:13:12,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 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) [2025-03-04 02:13:12,244 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:13:12,244 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:13:12,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 02:13:12,244 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:13:12,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:13:12,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2106865056, now seen corresponding path program 5 times [2025-03-04 02:13:12,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:13:12,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206802545] [2025-03-04 02:13:12,245 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 02:13:12,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:13:12,272 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-03-04 02:13:12,301 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 02:13:12,301 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 02:13:12,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:13:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:13:13,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:13:13,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206802545] [2025-03-04 02:13:13,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206802545] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:13:13,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:13:13,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-03-04 02:13:13,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747161565] [2025-03-04 02:13:13,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:13:13,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-04 02:13:13,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:13:13,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-04 02:13:13,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2025-03-04 02:13:13,516 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-04 02:13:13,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 408 transitions, 6820 flow. Second operand has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 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) [2025-03-04 02:13:13,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:13:13,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-04 02:13:13,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:13:16,178 INFO L124 PetriNetUnfolderBase]: 4826/9333 cut-off events. [2025-03-04 02:13:16,178 INFO L125 PetriNetUnfolderBase]: For 104850/104918 co-relation queries the response was YES. [2025-03-04 02:13:16,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52973 conditions, 9333 events. 4826/9333 cut-off events. For 104850/104918 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 74230 event pairs, 442 based on Foata normal form. 58/9389 useless extension candidates. Maximal degree in co-relation 52614. Up to 2360 conditions per place. [2025-03-04 02:13:16,264 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 382 selfloop transitions, 282 changer transitions 87/763 dead transitions. [2025-03-04 02:13:16,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 763 transitions, 13170 flow [2025-03-04 02:13:16,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-03-04 02:13:16,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-03-04 02:13:16,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 466 transitions. [2025-03-04 02:13:16,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4267399267399267 [2025-03-04 02:13:16,268 INFO L175 Difference]: Start difference. First operand has 201 places, 408 transitions, 6820 flow. Second operand 21 states and 466 transitions. [2025-03-04 02:13:16,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 763 transitions, 13170 flow [2025-03-04 02:13:17,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 763 transitions, 12333 flow, removed 334 selfloop flow, removed 9 redundant places. [2025-03-04 02:13:17,044 INFO L231 Difference]: Finished difference. Result has 221 places, 521 transitions, 9495 flow [2025-03-04 02:13:17,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=6404, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=408, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9495, PETRI_PLACES=221, PETRI_TRANSITIONS=521} [2025-03-04 02:13:17,045 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 176 predicate places. [2025-03-04 02:13:17,045 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 521 transitions, 9495 flow [2025-03-04 02:13:17,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.538461538461538) internal successors, (150), 13 states have internal predecessors, (150), 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) [2025-03-04 02:13:17,046 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:13:17,046 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:13:17,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 02:13:17,046 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:13:17,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:13:17,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1731641976, now seen corresponding path program 2 times [2025-03-04 02:13:17,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:13:17,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791300866] [2025-03-04 02:13:17,047 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 02:13:17,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:13:17,072 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-03-04 02:13:17,103 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 02:13:17,103 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 02:13:17,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:13:19,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:13:19,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:13:19,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791300866] [2025-03-04 02:13:19,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791300866] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:13:19,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:13:19,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-03-04 02:13:19,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034092992] [2025-03-04 02:13:19,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:13:19,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-04 02:13:19,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:13:19,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-04 02:13:19,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2025-03-04 02:13:19,891 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2025-03-04 02:13:19,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 521 transitions, 9495 flow. Second operand has 18 states, 18 states have (on average 10.222222222222221) internal successors, (184), 18 states have internal predecessors, (184), 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) [2025-03-04 02:13:19,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:13:19,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2025-03-04 02:13:19,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:13:23,879 INFO L124 PetriNetUnfolderBase]: 5115/9811 cut-off events. [2025-03-04 02:13:23,880 INFO L125 PetriNetUnfolderBase]: For 121495/121517 co-relation queries the response was YES. [2025-03-04 02:13:23,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57925 conditions, 9811 events. 5115/9811 cut-off events. For 121495/121517 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 78251 event pairs, 215 based on Foata normal form. 43/9849 useless extension candidates. Maximal degree in co-relation 57661. Up to 3228 conditions per place. [2025-03-04 02:13:23,958 INFO L140 encePairwiseOnDemand]: 31/52 looper letters, 319 selfloop transitions, 332 changer transitions 97/762 dead transitions. [2025-03-04 02:13:23,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 762 transitions, 13924 flow [2025-03-04 02:13:23,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-03-04 02:13:23,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2025-03-04 02:13:23,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 419 transitions. [2025-03-04 02:13:23,961 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3503344481605351 [2025-03-04 02:13:23,961 INFO L175 Difference]: Start difference. First operand has 221 places, 521 transitions, 9495 flow. Second operand 23 states and 419 transitions. [2025-03-04 02:13:23,961 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 762 transitions, 13924 flow [2025-03-04 02:13:24,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 762 transitions, 13615 flow, removed 88 selfloop flow, removed 5 redundant places. [2025-03-04 02:13:24,752 INFO L231 Difference]: Finished difference. Result has 244 places, 554 transitions, 10627 flow [2025-03-04 02:13:24,752 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=9256, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=299, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=10627, PETRI_PLACES=244, PETRI_TRANSITIONS=554} [2025-03-04 02:13:24,753 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 199 predicate places. [2025-03-04 02:13:24,753 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 554 transitions, 10627 flow [2025-03-04 02:13:24,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.222222222222221) internal successors, (184), 18 states have internal predecessors, (184), 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) [2025-03-04 02:13:24,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:13:24,753 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:13:24,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-04 02:13:24,753 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:13:24,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:13:24,754 INFO L85 PathProgramCache]: Analyzing trace with hash 881747556, now seen corresponding path program 3 times [2025-03-04 02:13:24,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:13:24,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292942694] [2025-03-04 02:13:24,754 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 02:13:24,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:13:24,779 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 1 equivalence classes. [2025-03-04 02:13:24,806 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 02:13:24,807 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-03-04 02:13:24,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:13:25,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:13:25,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:13:25,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292942694] [2025-03-04 02:13:25,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292942694] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:13:25,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:13:25,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 02:13:25,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492286144] [2025-03-04 02:13:25,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:13:25,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 02:13:25,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:13:25,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 02:13:25,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:13:26,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-04 02:13:26,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 554 transitions, 10627 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 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) [2025-03-04 02:13:26,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:13:26,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-04 02:13:26,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:13:29,230 INFO L124 PetriNetUnfolderBase]: 5007/9699 cut-off events. [2025-03-04 02:13:29,231 INFO L125 PetriNetUnfolderBase]: For 131233/131267 co-relation queries the response was YES. [2025-03-04 02:13:29,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59408 conditions, 9699 events. 5007/9699 cut-off events. For 131233/131267 co-relation queries the response was YES. Maximal size of possible extension queue 480. Compared 78131 event pairs, 234 based on Foata normal form. 53/9745 useless extension candidates. Maximal degree in co-relation 59139. Up to 1989 conditions per place. [2025-03-04 02:13:29,316 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 287 selfloop transitions, 429 changer transitions 104/839 dead transitions. [2025-03-04 02:13:29,316 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 839 transitions, 16144 flow [2025-03-04 02:13:29,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-03-04 02:13:29,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2025-03-04 02:13:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 477 transitions. [2025-03-04 02:13:29,318 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38221153846153844 [2025-03-04 02:13:29,318 INFO L175 Difference]: Start difference. First operand has 244 places, 554 transitions, 10627 flow. Second operand 24 states and 477 transitions. [2025-03-04 02:13:29,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 839 transitions, 16144 flow [2025-03-04 02:13:30,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 839 transitions, 15951 flow, removed 75 selfloop flow, removed 8 redundant places. [2025-03-04 02:13:30,147 INFO L231 Difference]: Finished difference. Result has 265 places, 613 transitions, 12752 flow [2025-03-04 02:13:30,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=10498, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=360, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=12752, PETRI_PLACES=265, PETRI_TRANSITIONS=613} [2025-03-04 02:13:30,148 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 220 predicate places. [2025-03-04 02:13:30,148 INFO L471 AbstractCegarLoop]: Abstraction has has 265 places, 613 transitions, 12752 flow [2025-03-04 02:13:30,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 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) [2025-03-04 02:13:30,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:13:30,148 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:13:30,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-04 02:13:30,148 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:13:30,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:13:30,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1172965194, now seen corresponding path program 4 times [2025-03-04 02:13:30,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:13:30,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077114929] [2025-03-04 02:13:30,149 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-03-04 02:13:30,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:13:30,174 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-03-04 02:13:30,210 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 02:13:30,210 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-03-04 02:13:30,210 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:13:33,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:13:33,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:13:33,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077114929] [2025-03-04 02:13:33,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077114929] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:13:33,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:13:33,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-03-04 02:13:33,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132565741] [2025-03-04 02:13:33,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:13:33,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-04 02:13:33,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:13:33,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-04 02:13:33,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2025-03-04 02:13:33,682 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-04 02:13:33,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 613 transitions, 12752 flow. Second operand has 16 states, 16 states have (on average 11.3125) internal successors, (181), 16 states have internal predecessors, (181), 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) [2025-03-04 02:13:33,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:13:33,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-04 02:13:33,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:13:38,992 INFO L124 PetriNetUnfolderBase]: 5167/10095 cut-off events. [2025-03-04 02:13:38,992 INFO L125 PetriNetUnfolderBase]: For 152797/152843 co-relation queries the response was YES. [2025-03-04 02:13:39,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63725 conditions, 10095 events. 5167/10095 cut-off events. For 152797/152843 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 82628 event pairs, 205 based on Foata normal form. 77/10165 useless extension candidates. Maximal degree in co-relation 63441. Up to 1802 conditions per place. [2025-03-04 02:13:39,121 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 286 selfloop transitions, 502 changer transitions 213/1023 dead transitions. [2025-03-04 02:13:39,121 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 1023 transitions, 20430 flow [2025-03-04 02:13:39,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-03-04 02:13:39,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2025-03-04 02:13:39,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 693 transitions. [2025-03-04 02:13:39,123 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3601871101871102 [2025-03-04 02:13:39,123 INFO L175 Difference]: Start difference. First operand has 265 places, 613 transitions, 12752 flow. Second operand 37 states and 693 transitions. [2025-03-04 02:13:39,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 1023 transitions, 20430 flow [2025-03-04 02:13:40,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 1023 transitions, 19774 flow, removed 155 selfloop flow, removed 7 redundant places. [2025-03-04 02:13:40,218 INFO L231 Difference]: Finished difference. Result has 301 places, 676 transitions, 14650 flow [2025-03-04 02:13:40,219 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=12254, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=613, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=442, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=14650, PETRI_PLACES=301, PETRI_TRANSITIONS=676} [2025-03-04 02:13:40,219 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 256 predicate places. [2025-03-04 02:13:40,219 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 676 transitions, 14650 flow [2025-03-04 02:13:40,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.3125) internal successors, (181), 16 states have internal predecessors, (181), 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) [2025-03-04 02:13:40,219 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:13:40,219 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:13:40,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-04 02:13:40,220 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:13:40,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:13:40,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1051491364, now seen corresponding path program 6 times [2025-03-04 02:13:40,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:13:40,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810422397] [2025-03-04 02:13:40,220 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-03-04 02:13:40,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:13:40,245 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 1 equivalence classes. [2025-03-04 02:13:40,277 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 02:13:40,278 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-03-04 02:13:40,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:13:41,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:13:41,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:13:41,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810422397] [2025-03-04 02:13:41,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810422397] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:13:41,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:13:41,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 02:13:41,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713887505] [2025-03-04 02:13:41,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:13:41,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 02:13:41,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:13:41,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 02:13:41,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:13:41,412 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-04 02:13:41,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 676 transitions, 14650 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 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) [2025-03-04 02:13:41,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:13:41,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-04 02:13:41,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:13:49,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-04 02:13:50,697 INFO L124 PetriNetUnfolderBase]: 5312/10443 cut-off events. [2025-03-04 02:13:50,697 INFO L125 PetriNetUnfolderBase]: For 176244/176286 co-relation queries the response was YES. [2025-03-04 02:13:50,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67890 conditions, 10443 events. 5312/10443 cut-off events. For 176244/176286 co-relation queries the response was YES. Maximal size of possible extension queue 524. Compared 85968 event pairs, 335 based on Foata normal form. 60/10501 useless extension candidates. Maximal degree in co-relation 67710. Up to 1912 conditions per place. [2025-03-04 02:13:50,793 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 402 selfloop transitions, 547 changer transitions 158/1127 dead transitions. [2025-03-04 02:13:50,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 1127 transitions, 24279 flow [2025-03-04 02:13:50,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2025-03-04 02:13:50,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2025-03-04 02:13:50,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 601 transitions. [2025-03-04 02:13:50,795 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41277472527472525 [2025-03-04 02:13:50,795 INFO L175 Difference]: Start difference. First operand has 301 places, 676 transitions, 14650 flow. Second operand 28 states and 601 transitions. [2025-03-04 02:13:50,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 1127 transitions, 24279 flow [2025-03-04 02:13:52,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 1127 transitions, 22605 flow, removed 314 selfloop flow, removed 27 redundant places. [2025-03-04 02:13:52,215 INFO L231 Difference]: Finished difference. Result has 317 places, 812 transitions, 18693 flow [2025-03-04 02:13:52,216 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=13680, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=676, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=402, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=18693, PETRI_PLACES=317, PETRI_TRANSITIONS=812} [2025-03-04 02:13:52,216 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 272 predicate places. [2025-03-04 02:13:52,216 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 812 transitions, 18693 flow [2025-03-04 02:13:52,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 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) [2025-03-04 02:13:52,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:13:52,216 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:13:52,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-04 02:13:52,217 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2025-03-04 02:13:52,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:13:52,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1527821340, now seen corresponding path program 5 times [2025-03-04 02:13:52,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:13:52,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572158122] [2025-03-04 02:13:52,217 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-03-04 02:13:52,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:13:52,241 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-03-04 02:13:52,267 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-04 02:13:52,268 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 02:13:52,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:13:53,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:13:53,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:13:53,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572158122] [2025-03-04 02:13:53,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572158122] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:13:53,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:13:53,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-03-04 02:13:53,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688121744] [2025-03-04 02:13:53,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:13:53,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 02:13:53,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:13:53,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 02:13:53,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2025-03-04 02:13:53,846 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2025-03-04 02:13:53,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 812 transitions, 18693 flow. Second operand has 12 states, 12 states have (on average 11.666666666666666) internal successors, (140), 12 states have internal predecessors, (140), 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) [2025-03-04 02:13:53,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:13:53,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2025-03-04 02:13:53,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:13:57,768 INFO L124 PetriNetUnfolderBase]: 5727/11091 cut-off events. [2025-03-04 02:13:57,768 INFO L125 PetriNetUnfolderBase]: For 210088/210148 co-relation queries the response was YES. [2025-03-04 02:13:57,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74094 conditions, 11091 events. 5727/11091 cut-off events. For 210088/210148 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 90996 event pairs, 394 based on Foata normal form. 65/11144 useless extension candidates. Maximal degree in co-relation 73781. Up to 2185 conditions per place. [2025-03-04 02:13:57,926 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 550 selfloop transitions, 486 changer transitions 99/1159 dead transitions. [2025-03-04 02:13:57,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 1159 transitions, 27064 flow [2025-03-04 02:13:57,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-04 02:13:57,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-04 02:13:57,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 454 transitions. [2025-03-04 02:13:57,928 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3968531468531469 [2025-03-04 02:13:57,928 INFO L175 Difference]: Start difference. First operand has 317 places, 812 transitions, 18693 flow. Second operand 22 states and 454 transitions. [2025-03-04 02:13:57,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 1159 transitions, 27064 flow [2025-03-04 02:13:59,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1159 transitions, 26139 flow, removed 201 selfloop flow, removed 16 redundant places.