./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 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/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-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/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-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-4f9af40 [2024-11-07 11:16:36,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:16:36,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 11:16:36,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:16:36,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:16:36,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:16:36,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:16:36,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:16:36,572 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:16:36,572 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:16:36,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:16:36,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:16:36,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:16:36,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:16:36,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:16:36,573 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:16:36,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:16:36,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:16:36,574 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:16:36,574 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:16:36,574 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:16:36,574 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:16:36,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:16:36,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:16:36,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:16:36,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:16:36,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:16:36,574 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-jdk21/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 [2024-11-07 11:16:36,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:16:36,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:16:36,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:16:36,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:16:36,966 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:16:36,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-11-07 11:16:38,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:16:38,679 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:16:38,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-11-07 11:16:38,728 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9c1b88740/715bb138d3fd4ce3adb598f11f287e31/FLAG4b4289b4f [2024-11-07 11:16:38,800 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9c1b88740/715bb138d3fd4ce3adb598f11f287e31 [2024-11-07 11:16:38,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:16:38,804 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:16:38,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:16:38,807 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:16:38,811 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:16:38,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:16:38" (1/1) ... [2024-11-07 11:16:38,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f50caa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:38, skipping insertion in model container [2024-11-07 11:16:38,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:16:38" (1/1) ... [2024-11-07 11:16:38,907 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:16:39,248 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-07 11:16:43,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:16:43,717 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:16:43,732 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-07 11:16:43,842 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] [2024-11-07 11:16:43,843 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] [2024-11-07 11:16:43,844 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] [2024-11-07 11:16:43,844 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] [2024-11-07 11:16:43,927 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2024-11-07 11:16:43,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:16:44,273 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:16:44,274 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44 WrapperNode [2024-11-07 11:16:44,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:16:44,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:16:44,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:16:44,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:16:44,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,410 INFO L138 Inliner]: procedures = 1354, calls = 1479, calls flagged for inlining = 352, calls inlined = 18, statements flattened = 402 [2024-11-07 11:16:44,411 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:16:44,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:16:44,411 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:16:44,411 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:16:44,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,425 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,450 INFO L175 MemorySlicer]: Split 52 memory accesses to 7 slices as follows [2, 1, 4, 2, 9, 31, 3]. 60 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 1, 4, 2, 0, 31, 3]. The 3 writes are split as follows [0, 0, 0, 0, 3, 0, 0]. [2024-11-07 11:16:44,450 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,450 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,467 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:16:44,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:16:44,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:16:44,501 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:16:44,502 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (1/1) ... [2024-11-07 11:16:44,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:16:44,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:16:44,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 11:16:44,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 11:16:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 11:16:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 11:16:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:16:44,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 11:16:44,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2024-11-07 11:16:44,553 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2024-11-07 11:16:44,553 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2024-11-07 11:16:44,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:16:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:16:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 11:16:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 11:16:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 11:16:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 11:16:44,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-07 11:16:44,555 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 11:16:44,904 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:16:44,905 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:16:45,336 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 11:16:45,337 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:16:45,810 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:16:45,810 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-07 11:16:45,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:16:45 BoogieIcfgContainer [2024-11-07 11:16:45,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:16:45,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:16:45,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:16:45,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:16:45,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:16:38" (1/3) ... [2024-11-07 11:16:45,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67aa9ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:16:45, skipping insertion in model container [2024-11-07 11:16:45,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:16:44" (2/3) ... [2024-11-07 11:16:45,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67aa9ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:16:45, skipping insertion in model container [2024-11-07 11:16:45,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:16:45" (3/3) ... [2024-11-07 11:16:45,820 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2024-11-07 11:16:45,833 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:16:45,834 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 11:16:45,835 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 11:16:45,914 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 11:16:45,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 52 transitions, 118 flow [2024-11-07 11:16:45,971 INFO L124 PetriNetUnfolderBase]: 10/50 cut-off events. [2024-11-07 11:16:45,973 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 11:16:45,977 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. [2024-11-07 11:16:45,978 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 52 transitions, 118 flow [2024-11-07 11:16:45,980 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 48 transitions, 105 flow [2024-11-07 11:16:45,988 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:16:45,996 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;@2bd5edc0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:16:45,996 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-07 11:16:46,009 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 11:16:46,009 INFO L124 PetriNetUnfolderBase]: 8/42 cut-off events. [2024-11-07 11:16:46,009 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-07 11:16:46,009 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:16:46,010 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:16:46,010 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)] === [2024-11-07 11:16:46,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:16:46,018 INFO L85 PathProgramCache]: Analyzing trace with hash 393972096, now seen corresponding path program 1 times [2024-11-07 11:16:46,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:16:46,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628753033] [2024-11-07 11:16:46,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:16:46,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:16:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:16:47,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:16:47,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:16:47,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628753033] [2024-11-07 11:16:47,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628753033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:16:47,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:16:47,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 11:16:47,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017099261] [2024-11-07 11:16:47,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:16:47,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 11:16:47,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:16:47,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 11:16:47,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-07 11:16:47,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2024-11-07 11:16:47,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 105 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-07 11:16:47,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:16:47,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2024-11-07 11:16:47,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:16:49,254 INFO L124 PetriNetUnfolderBase]: 1706/2859 cut-off events. [2024-11-07 11:16:49,255 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-07 11:16:49,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5567 conditions, 2859 events. 1706/2859 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 14681 event pairs, 182 based on Foata normal form. 145/2538 useless extension candidates. Maximal degree in co-relation 5484. Up to 767 conditions per place. [2024-11-07 11:16:49,278 INFO L140 encePairwiseOnDemand]: 38/52 looper letters, 159 selfloop transitions, 32 changer transitions 21/219 dead transitions. [2024-11-07 11:16:49,278 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 219 transitions, 889 flow [2024-11-07 11:16:49,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 11:16:49,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 11:16:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 346 transitions. [2024-11-07 11:16:49,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5118343195266272 [2024-11-07 11:16:49,294 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 105 flow. Second operand 13 states and 346 transitions. [2024-11-07 11:16:49,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 219 transitions, 889 flow [2024-11-07 11:16:49,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 219 transitions, 878 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 11:16:49,309 INFO L231 Difference]: Finished difference. Result has 60 places, 77 transitions, 285 flow [2024-11-07 11:16:49,311 INFO L260 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=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=285, PETRI_PLACES=60, PETRI_TRANSITIONS=77} [2024-11-07 11:16:49,314 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 15 predicate places. [2024-11-07 11:16:49,315 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 77 transitions, 285 flow [2024-11-07 11:16:49,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-07 11:16:49,315 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:16:49,315 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:16:49,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:16:49,316 INFO L396 AbstractCegarLoop]: === Iteration 2 === 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)] === [2024-11-07 11:16:49,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:16:49,316 INFO L85 PathProgramCache]: Analyzing trace with hash -2096645885, now seen corresponding path program 1 times [2024-11-07 11:16:49,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:16:49,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300810779] [2024-11-07 11:16:49,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:16:49,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:16:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:16:50,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:16:50,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:16:50,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300810779] [2024-11-07 11:16:50,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300810779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 11:16:50,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435855496] [2024-11-07 11:16:50,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:16:50,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:16:50,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:16:50,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 11:16:50,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 11:16:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:16:51,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 11:16:51,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 11:16:51,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-07 11:16:51,511 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 31 [2024-11-07 11:16:51,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 11:16:51,596 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 11:16:51,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435855496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:16:51,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 11:16:51,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-07 11:16:51,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482617796] [2024-11-07 11:16:51,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:16:51,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:16:51,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:16:51,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:16:51,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-07 11:16:51,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2024-11-07 11:16:51,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 77 transitions, 285 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:16:51,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:16:51,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2024-11-07 11:16:51,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:16:52,198 INFO L124 PetriNetUnfolderBase]: 1631/2889 cut-off events. [2024-11-07 11:16:52,198 INFO L125 PetriNetUnfolderBase]: For 788/788 co-relation queries the response was YES. [2024-11-07 11:16:52,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6791 conditions, 2889 events. 1631/2889 cut-off events. For 788/788 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 15702 event pairs, 736 based on Foata normal form. 38/2575 useless extension candidates. Maximal degree in co-relation 6466. Up to 1760 conditions per place. [2024-11-07 11:16:52,214 INFO L140 encePairwiseOnDemand]: 45/52 looper letters, 93 selfloop transitions, 25 changer transitions 18/148 dead transitions. [2024-11-07 11:16:52,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 148 transitions, 736 flow [2024-11-07 11:16:52,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:16:52,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:16:52,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 181 transitions. [2024-11-07 11:16:52,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49725274725274726 [2024-11-07 11:16:52,216 INFO L175 Difference]: Start difference. First operand has 60 places, 77 transitions, 285 flow. Second operand 7 states and 181 transitions. [2024-11-07 11:16:52,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 148 transitions, 736 flow [2024-11-07 11:16:52,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 148 transitions, 736 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-07 11:16:52,231 INFO L231 Difference]: Finished difference. Result has 71 places, 84 transitions, 438 flow [2024-11-07 11:16:52,231 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=285, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=438, PETRI_PLACES=71, PETRI_TRANSITIONS=84} [2024-11-07 11:16:52,232 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 26 predicate places. [2024-11-07 11:16:52,232 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 84 transitions, 438 flow [2024-11-07 11:16:52,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:16:52,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:16:52,232 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:16:52,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 11:16:52,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:16:52,434 INFO L396 AbstractCegarLoop]: === Iteration 3 === 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)] === [2024-11-07 11:16:52,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:16:52,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1217525052, now seen corresponding path program 1 times [2024-11-07 11:16:52,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:16:52,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037468531] [2024-11-07 11:16:52,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:16:52,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:16:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:16:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:16:53,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:16:53,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037468531] [2024-11-07 11:16:53,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037468531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:16:53,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:16:53,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 11:16:53,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96326495] [2024-11-07 11:16:53,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:16:53,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 11:16:53,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:16:53,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 11:16:53,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-07 11:16:53,260 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2024-11-07 11:16:53,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 84 transitions, 438 flow. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-11-07 11:16:53,261 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:16:53,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2024-11-07 11:16:53,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:16:54,552 INFO L124 PetriNetUnfolderBase]: 3317/5689 cut-off events. [2024-11-07 11:16:54,553 INFO L125 PetriNetUnfolderBase]: For 6288/6330 co-relation queries the response was YES. [2024-11-07 11:16:54,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16222 conditions, 5689 events. 3317/5689 cut-off events. For 6288/6330 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 34866 event pairs, 401 based on Foata normal form. 0/5228 useless extension candidates. Maximal degree in co-relation 15579. Up to 1626 conditions per place. [2024-11-07 11:16:54,583 INFO L140 encePairwiseOnDemand]: 40/52 looper letters, 214 selfloop transitions, 41 changer transitions 154/421 dead transitions. [2024-11-07 11:16:54,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 421 transitions, 3254 flow [2024-11-07 11:16:54,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 11:16:54,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-07 11:16:54,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 321 transitions. [2024-11-07 11:16:54,586 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47485207100591714 [2024-11-07 11:16:54,586 INFO L175 Difference]: Start difference. First operand has 71 places, 84 transitions, 438 flow. Second operand 13 states and 321 transitions. [2024-11-07 11:16:54,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 421 transitions, 3254 flow [2024-11-07 11:16:54,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 421 transitions, 3130 flow, removed 24 selfloop flow, removed 3 redundant places. [2024-11-07 11:16:54,637 INFO L231 Difference]: Finished difference. Result has 88 places, 121 transitions, 874 flow [2024-11-07 11:16:54,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=874, PETRI_PLACES=88, PETRI_TRANSITIONS=121} [2024-11-07 11:16:54,638 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 43 predicate places. [2024-11-07 11:16:54,638 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 121 transitions, 874 flow [2024-11-07 11:16:54,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-11-07 11:16:54,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:16:54,639 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:16:54,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 11:16:54,639 INFO L396 AbstractCegarLoop]: === Iteration 4 === 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)] === [2024-11-07 11:16:54,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:16:54,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1823741986, now seen corresponding path program 1 times [2024-11-07 11:16:54,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:16:54,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704466149] [2024-11-07 11:16:54,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:16:54,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:16:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:16:55,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:16:55,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:16:55,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704466149] [2024-11-07 11:16:55,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704466149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 11:16:55,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100730389] [2024-11-07 11:16:55,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:16:55,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:16:55,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:16:55,787 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 11:16:55,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 11:16:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:16:56,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 11:16:56,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 11:16:56,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2024-11-07 11:16:56,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 29 [2024-11-07 11:16:56,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:16:56,709 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 11:16:56,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 11:16:56,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100730389] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 11:16:56,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 11:16:56,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12, 9] total 22 [2024-11-07 11:16:56,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302705429] [2024-11-07 11:16:56,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:16:56,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:16:56,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:16:56,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:16:56,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-07 11:16:56,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2024-11-07 11:16:56,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 121 transitions, 874 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) [2024-11-07 11:16:56,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:16:56,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2024-11-07 11:16:56,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:16:57,559 INFO L124 PetriNetUnfolderBase]: 2525/4571 cut-off events. [2024-11-07 11:16:57,559 INFO L125 PetriNetUnfolderBase]: For 6706/6726 co-relation queries the response was YES. [2024-11-07 11:16:57,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15125 conditions, 4571 events. 2525/4571 cut-off events. For 6706/6726 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 28347 event pairs, 931 based on Foata normal form. 98/4373 useless extension candidates. Maximal degree in co-relation 14701. Up to 1964 conditions per place. [2024-11-07 11:16:57,588 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 95 selfloop transitions, 34 changer transitions 123/264 dead transitions. [2024-11-07 11:16:57,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 264 transitions, 2141 flow [2024-11-07 11:16:57,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 11:16:57,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 11:16:57,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2024-11-07 11:16:57,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5274725274725275 [2024-11-07 11:16:57,589 INFO L175 Difference]: Start difference. First operand has 88 places, 121 transitions, 874 flow. Second operand 7 states and 192 transitions. [2024-11-07 11:16:57,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 264 transitions, 2141 flow [2024-11-07 11:16:57,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 264 transitions, 2139 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-07 11:16:57,647 INFO L231 Difference]: Finished difference. Result has 95 places, 91 transitions, 753 flow [2024-11-07 11:16:57,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=872, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=753, PETRI_PLACES=95, PETRI_TRANSITIONS=91} [2024-11-07 11:16:57,648 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 50 predicate places. [2024-11-07 11:16:57,648 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 91 transitions, 753 flow [2024-11-07 11:16:57,648 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) [2024-11-07 11:16:57,649 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:16:57,649 INFO L204 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] [2024-11-07 11:16:57,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 11:16:57,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:16:57,849 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)] === [2024-11-07 11:16:57,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:16:57,850 INFO L85 PathProgramCache]: Analyzing trace with hash 816331959, now seen corresponding path program 1 times [2024-11-07 11:16:57,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:16:57,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355351026] [2024-11-07 11:16:57,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:16:57,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:16:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:16:59,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:16:59,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:16:59,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355351026] [2024-11-07 11:16:59,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355351026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:16:59,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:16:59,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-07 11:16:59,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529271060] [2024-11-07 11:16:59,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:16:59,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-07 11:16:59,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:16:59,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-07 11:16:59,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-11-07 11:16:59,929 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 52 [2024-11-07 11:16:59,929 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 91 transitions, 753 flow. Second operand has 18 states, 18 states have (on average 7.277777777777778) internal successors, (131), 18 states have internal predecessors, (131), 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) [2024-11-07 11:16:59,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:16:59,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 52 [2024-11-07 11:16:59,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:17:05,485 INFO L124 PetriNetUnfolderBase]: 3677/6596 cut-off events. [2024-11-07 11:17:05,485 INFO L125 PetriNetUnfolderBase]: For 15714/15714 co-relation queries the response was YES. [2024-11-07 11:17:05,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24588 conditions, 6596 events. 3677/6596 cut-off events. For 15714/15714 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 45417 event pairs, 302 based on Foata normal form. 10/6176 useless extension candidates. Maximal degree in co-relation 24561. Up to 1279 conditions per place. [2024-11-07 11:17:05,518 INFO L140 encePairwiseOnDemand]: 28/52 looper letters, 269 selfloop transitions, 91 changer transitions 185/550 dead transitions. [2024-11-07 11:17:05,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 550 transitions, 4859 flow [2024-11-07 11:17:05,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-07 11:17:05,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2024-11-07 11:17:05,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 612 transitions. [2024-11-07 11:17:05,524 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3180873180873181 [2024-11-07 11:17:05,524 INFO L175 Difference]: Start difference. First operand has 95 places, 91 transitions, 753 flow. Second operand 37 states and 612 transitions. [2024-11-07 11:17:05,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 550 transitions, 4859 flow [2024-11-07 11:17:05,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 550 transitions, 4608 flow, removed 47 selfloop flow, removed 5 redundant places. [2024-11-07 11:17:05,620 INFO L231 Difference]: Finished difference. Result has 141 places, 151 transitions, 1610 flow [2024-11-07 11:17:05,620 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=705, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=37, PETRI_FLOW=1610, PETRI_PLACES=141, PETRI_TRANSITIONS=151} [2024-11-07 11:17:05,620 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 96 predicate places. [2024-11-07 11:17:05,621 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 151 transitions, 1610 flow [2024-11-07 11:17:05,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.277777777777778) internal successors, (131), 18 states have internal predecessors, (131), 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) [2024-11-07 11:17:05,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:17:05,621 INFO L204 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] [2024-11-07 11:17:05,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 11:17:05,621 INFO L396 AbstractCegarLoop]: === Iteration 6 === 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)] === [2024-11-07 11:17:05,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:17:05,621 INFO L85 PathProgramCache]: Analyzing trace with hash -2036525629, now seen corresponding path program 1 times [2024-11-07 11:17:05,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:17:05,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811179874] [2024-11-07 11:17:05,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:17:05,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:17:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:17:06,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:17:06,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:17:06,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811179874] [2024-11-07 11:17:06,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811179874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:17:06,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:17:06,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 11:17:06,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468626963] [2024-11-07 11:17:06,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:17:06,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 11:17:06,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:17:06,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 11:17:06,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-07 11:17:06,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-07 11:17:06,993 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 151 transitions, 1610 flow. Second operand has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 14 states have internal predecessors, (135), 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) [2024-11-07 11:17:06,993 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:17:06,993 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-07 11:17:06,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:17:08,818 INFO L124 PetriNetUnfolderBase]: 3174/5882 cut-off events. [2024-11-07 11:17:08,819 INFO L125 PetriNetUnfolderBase]: For 22589/22661 co-relation queries the response was YES. [2024-11-07 11:17:08,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25432 conditions, 5882 events. 3174/5882 cut-off events. For 22589/22661 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 40956 event pairs, 336 based on Foata normal form. 11/5650 useless extension candidates. Maximal degree in co-relation 25389. Up to 1626 conditions per place. [2024-11-07 11:17:08,851 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 241 selfloop transitions, 69 changer transitions 142/462 dead transitions. [2024-11-07 11:17:08,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 462 transitions, 4887 flow [2024-11-07 11:17:08,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-07 11:17:08,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-07 11:17:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 356 transitions. [2024-11-07 11:17:08,853 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40271493212669685 [2024-11-07 11:17:08,854 INFO L175 Difference]: Start difference. First operand has 141 places, 151 transitions, 1610 flow. Second operand 17 states and 356 transitions. [2024-11-07 11:17:08,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 462 transitions, 4887 flow [2024-11-07 11:17:08,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 462 transitions, 4589 flow, removed 42 selfloop flow, removed 10 redundant places. [2024-11-07 11:17:08,974 INFO L231 Difference]: Finished difference. Result has 146 places, 156 transitions, 1743 flow [2024-11-07 11:17:08,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1504, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1743, PETRI_PLACES=146, PETRI_TRANSITIONS=156} [2024-11-07 11:17:08,976 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 101 predicate places. [2024-11-07 11:17:08,976 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 156 transitions, 1743 flow [2024-11-07 11:17:08,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 14 states have internal predecessors, (135), 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) [2024-11-07 11:17:08,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:17:08,977 INFO L204 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] [2024-11-07 11:17:08,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 11:17:08,977 INFO L396 AbstractCegarLoop]: === Iteration 7 === 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)] === [2024-11-07 11:17:08,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:17:08,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1987620983, now seen corresponding path program 2 times [2024-11-07 11:17:08,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:17:08,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247746831] [2024-11-07 11:17:08,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:17:08,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:17:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:17:10,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:17:10,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:17:10,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247746831] [2024-11-07 11:17:10,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247746831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:17:10,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:17:10,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-07 11:17:10,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525668264] [2024-11-07 11:17:10,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:17:10,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 11:17:10,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:17:10,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 11:17:10,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-07 11:17:10,687 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-07 11:17:10,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 156 transitions, 1743 flow. Second operand has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 14 states have internal predecessors, (135), 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) [2024-11-07 11:17:10,688 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:17:10,688 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-07 11:17:10,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:17:13,822 INFO L124 PetriNetUnfolderBase]: 3680/6765 cut-off events. [2024-11-07 11:17:13,822 INFO L125 PetriNetUnfolderBase]: For 31207/31221 co-relation queries the response was YES. [2024-11-07 11:17:13,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30159 conditions, 6765 events. 3680/6765 cut-off events. For 31207/31221 co-relation queries the response was YES. Maximal size of possible extension queue 295. Compared 48109 event pairs, 248 based on Foata normal form. 10/6529 useless extension candidates. Maximal degree in co-relation 30113. Up to 1799 conditions per place. [2024-11-07 11:17:13,867 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 223 selfloop transitions, 95 changer transitions 120/447 dead transitions. [2024-11-07 11:17:13,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 447 transitions, 5092 flow [2024-11-07 11:17:13,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 11:17:13,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-07 11:17:13,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 442 transitions. [2024-11-07 11:17:13,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38636363636363635 [2024-11-07 11:17:13,869 INFO L175 Difference]: Start difference. First operand has 146 places, 156 transitions, 1743 flow. Second operand 22 states and 442 transitions. [2024-11-07 11:17:13,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 447 transitions, 5092 flow [2024-11-07 11:17:14,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 447 transitions, 4758 flow, removed 5 selfloop flow, removed 10 redundant places. [2024-11-07 11:17:14,122 INFO L231 Difference]: Finished difference. Result has 168 places, 183 transitions, 2299 flow [2024-11-07 11:17:14,122 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1635, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2299, PETRI_PLACES=168, PETRI_TRANSITIONS=183} [2024-11-07 11:17:14,123 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 123 predicate places. [2024-11-07 11:17:14,124 INFO L471 AbstractCegarLoop]: Abstraction has has 168 places, 183 transitions, 2299 flow [2024-11-07 11:17:14,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.642857142857142) internal successors, (135), 14 states have internal predecessors, (135), 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) [2024-11-07 11:17:14,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:17:14,124 INFO L204 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] [2024-11-07 11:17:14,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 11:17:14,124 INFO L396 AbstractCegarLoop]: === Iteration 8 === 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)] === [2024-11-07 11:17:14,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:17:14,127 INFO L85 PathProgramCache]: Analyzing trace with hash -967006623, now seen corresponding path program 2 times [2024-11-07 11:17:14,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:17:14,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192513928] [2024-11-07 11:17:14,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:17:14,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:17:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:17:14,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:17:14,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:17:14,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192513928] [2024-11-07 11:17:14,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192513928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:17:14,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:17:14,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 11:17:14,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448647528] [2024-11-07 11:17:14,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:17:14,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 11:17:14,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:17:14,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 11:17:14,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-11-07 11:17:14,945 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-07 11:17:14,945 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 183 transitions, 2299 flow. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 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) [2024-11-07 11:17:14,945 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:17:14,945 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-07 11:17:14,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:17:16,893 INFO L124 PetriNetUnfolderBase]: 5887/10791 cut-off events. [2024-11-07 11:17:16,894 INFO L125 PetriNetUnfolderBase]: For 61521/61631 co-relation queries the response was YES. [2024-11-07 11:17:17,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51162 conditions, 10791 events. 5887/10791 cut-off events. For 61521/61631 co-relation queries the response was YES. Maximal size of possible extension queue 476. Compared 82498 event pairs, 884 based on Foata normal form. 38/10370 useless extension candidates. Maximal degree in co-relation 51104. Up to 2514 conditions per place. [2024-11-07 11:17:17,066 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 287 selfloop transitions, 150 changer transitions 164/612 dead transitions. [2024-11-07 11:17:17,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 612 transitions, 7523 flow [2024-11-07 11:17:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-07 11:17:17,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-07 11:17:17,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 479 transitions. [2024-11-07 11:17:17,071 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4005016722408027 [2024-11-07 11:17:17,072 INFO L175 Difference]: Start difference. First operand has 168 places, 183 transitions, 2299 flow. Second operand 23 states and 479 transitions. [2024-11-07 11:17:17,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 612 transitions, 7523 flow [2024-11-07 11:17:17,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 612 transitions, 7269 flow, removed 37 selfloop flow, removed 8 redundant places. [2024-11-07 11:17:17,526 INFO L231 Difference]: Finished difference. Result has 192 places, 256 transitions, 3794 flow [2024-11-07 11:17:17,526 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=2212, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=3794, PETRI_PLACES=192, PETRI_TRANSITIONS=256} [2024-11-07 11:17:17,526 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 147 predicate places. [2024-11-07 11:17:17,526 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 256 transitions, 3794 flow [2024-11-07 11:17:17,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 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) [2024-11-07 11:17:17,527 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:17:17,527 INFO L204 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] [2024-11-07 11:17:17,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 11:17:17,527 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)] === [2024-11-07 11:17:17,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:17:17,527 INFO L85 PathProgramCache]: Analyzing trace with hash 2001953327, now seen corresponding path program 3 times [2024-11-07 11:17:17,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:17:17,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835133725] [2024-11-07 11:17:17,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:17:17,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:17:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:17:19,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:17:19,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:17:19,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835133725] [2024-11-07 11:17:19,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835133725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:17:19,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:17:19,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-07 11:17:19,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526854215] [2024-11-07 11:17:19,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:17:19,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 11:17:19,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:17:19,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 11:17:19,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-07 11:17:19,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-07 11:17:19,195 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 256 transitions, 3794 flow. Second operand has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 12 states have internal predecessors, (119), 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) [2024-11-07 11:17:19,195 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:17:19,195 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-07 11:17:19,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:17:23,126 INFO L124 PetriNetUnfolderBase]: 6920/12950 cut-off events. [2024-11-07 11:17:23,127 INFO L125 PetriNetUnfolderBase]: For 98970/99054 co-relation queries the response was YES. [2024-11-07 11:17:23,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67914 conditions, 12950 events. 6920/12950 cut-off events. For 98970/99054 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 105360 event pairs, 298 based on Foata normal form. 34/12434 useless extension candidates. Maximal degree in co-relation 67845. Up to 4128 conditions per place. [2024-11-07 11:17:23,242 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 342 selfloop transitions, 250 changer transitions 161/764 dead transitions. [2024-11-07 11:17:23,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 764 transitions, 10778 flow [2024-11-07 11:17:23,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-07 11:17:23,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2024-11-07 11:17:23,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 616 transitions. [2024-11-07 11:17:23,244 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3701923076923077 [2024-11-07 11:17:23,244 INFO L175 Difference]: Start difference. First operand has 192 places, 256 transitions, 3794 flow. Second operand 32 states and 616 transitions. [2024-11-07 11:17:23,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 764 transitions, 10778 flow [2024-11-07 11:17:24,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 764 transitions, 10054 flow, removed 100 selfloop flow, removed 9 redundant places. [2024-11-07 11:17:24,181 INFO L231 Difference]: Finished difference. Result has 236 places, 405 transitions, 6610 flow [2024-11-07 11:17:24,181 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=3447, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=6610, PETRI_PLACES=236, PETRI_TRANSITIONS=405} [2024-11-07 11:17:24,181 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 191 predicate places. [2024-11-07 11:17:24,182 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 405 transitions, 6610 flow [2024-11-07 11:17:24,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.916666666666666) internal successors, (119), 12 states have internal predecessors, (119), 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) [2024-11-07 11:17:24,182 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:17:24,182 INFO L204 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] [2024-11-07 11:17:24,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 11:17:24,182 INFO L396 AbstractCegarLoop]: === Iteration 10 === 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)] === [2024-11-07 11:17:24,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:17:24,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1488432631, now seen corresponding path program 3 times [2024-11-07 11:17:24,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:17:24,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171399603] [2024-11-07 11:17:24,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:17:24,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:17:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:17:25,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:17:25,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:17:25,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171399603] [2024-11-07 11:17:25,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171399603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:17:25,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:17:25,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 11:17:25,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548418496] [2024-11-07 11:17:25,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:17:25,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 11:17:25,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:17:25,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 11:17:25,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-07 11:17:25,372 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-07 11:17:25,373 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 405 transitions, 6610 flow. Second operand has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 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) [2024-11-07 11:17:25,373 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:17:25,373 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-07 11:17:25,373 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:17:29,207 INFO L124 PetriNetUnfolderBase]: 7813/14752 cut-off events. [2024-11-07 11:17:29,209 INFO L125 PetriNetUnfolderBase]: For 148818/148844 co-relation queries the response was YES. [2024-11-07 11:17:29,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83703 conditions, 14752 events. 7813/14752 cut-off events. For 148818/148844 co-relation queries the response was YES. Maximal size of possible extension queue 719. Compared 123218 event pairs, 916 based on Foata normal form. 12/14156 useless extension candidates. Maximal degree in co-relation 83613. Up to 3503 conditions per place. [2024-11-07 11:17:29,463 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 484 selfloop transitions, 263 changer transitions 132/892 dead transitions. [2024-11-07 11:17:29,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 892 transitions, 15067 flow [2024-11-07 11:17:29,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 11:17:29,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-07 11:17:29,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 418 transitions. [2024-11-07 11:17:29,469 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40192307692307694 [2024-11-07 11:17:29,469 INFO L175 Difference]: Start difference. First operand has 236 places, 405 transitions, 6610 flow. Second operand 20 states and 418 transitions. [2024-11-07 11:17:29,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 892 transitions, 15067 flow [2024-11-07 11:17:31,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 892 transitions, 14537 flow, removed 248 selfloop flow, removed 5 redundant places. [2024-11-07 11:17:31,181 INFO L231 Difference]: Finished difference. Result has 259 places, 554 transitions, 10114 flow [2024-11-07 11:17:31,233 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=6365, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=10114, PETRI_PLACES=259, PETRI_TRANSITIONS=554} [2024-11-07 11:17:31,234 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 214 predicate places. [2024-11-07 11:17:31,234 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 554 transitions, 10114 flow [2024-11-07 11:17:31,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 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) [2024-11-07 11:17:31,234 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:17:31,235 INFO L204 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] [2024-11-07 11:17:31,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 11:17:31,235 INFO L396 AbstractCegarLoop]: === Iteration 11 === 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)] === [2024-11-07 11:17:31,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:17:31,235 INFO L85 PathProgramCache]: Analyzing trace with hash 90136703, now seen corresponding path program 4 times [2024-11-07 11:17:31,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:17:31,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167564488] [2024-11-07 11:17:31,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:17:31,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:17:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:17:32,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:17:32,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:17:32,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167564488] [2024-11-07 11:17:32,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167564488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:17:32,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:17:32,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 11:17:32,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276151121] [2024-11-07 11:17:32,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:17:32,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 11:17:32,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:17:32,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 11:17:32,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-07 11:17:32,668 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-07 11:17:32,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 554 transitions, 10114 flow. Second operand has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 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) [2024-11-07 11:17:32,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:17:32,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-07 11:17:32,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:17:37,778 INFO L124 PetriNetUnfolderBase]: 8214/15490 cut-off events. [2024-11-07 11:17:37,779 INFO L125 PetriNetUnfolderBase]: For 184474/184494 co-relation queries the response was YES. [2024-11-07 11:17:37,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93963 conditions, 15490 events. 8214/15490 cut-off events. For 184474/184494 co-relation queries the response was YES. Maximal size of possible extension queue 753. Compared 130798 event pairs, 750 based on Foata normal form. 42/14848 useless extension candidates. Maximal degree in co-relation 93862. Up to 4472 conditions per place. [2024-11-07 11:17:37,994 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 421 selfloop transitions, 396 changer transitions 99/929 dead transitions. [2024-11-07 11:17:37,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 929 transitions, 16974 flow [2024-11-07 11:17:37,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-07 11:17:37,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-07 11:17:37,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 455 transitions. [2024-11-07 11:17:37,999 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3804347826086957 [2024-11-07 11:17:37,999 INFO L175 Difference]: Start difference. First operand has 259 places, 554 transitions, 10114 flow. Second operand 23 states and 455 transitions. [2024-11-07 11:17:37,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 929 transitions, 16974 flow [2024-11-07 11:17:40,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 929 transitions, 16299 flow, removed 255 selfloop flow, removed 7 redundant places. [2024-11-07 11:17:40,421 INFO L231 Difference]: Finished difference. Result has 284 places, 629 transitions, 12266 flow [2024-11-07 11:17:40,421 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=9649, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=321, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=12266, PETRI_PLACES=284, PETRI_TRANSITIONS=629} [2024-11-07 11:17:40,422 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 239 predicate places. [2024-11-07 11:17:40,422 INFO L471 AbstractCegarLoop]: Abstraction has has 284 places, 629 transitions, 12266 flow [2024-11-07 11:17:40,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 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) [2024-11-07 11:17:40,422 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:17:40,422 INFO L204 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] [2024-11-07 11:17:40,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 11:17:40,422 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)] === [2024-11-07 11:17:40,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:17:40,422 INFO L85 PathProgramCache]: Analyzing trace with hash -39130741, now seen corresponding path program 5 times [2024-11-07 11:17:40,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:17:40,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272791900] [2024-11-07 11:17:40,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:17:40,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:17:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:17:41,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:17:41,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:17:41,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272791900] [2024-11-07 11:17:41,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272791900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:17:41,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:17:41,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-07 11:17:41,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549577189] [2024-11-07 11:17:41,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:17:41,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 11:17:41,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:17:41,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 11:17:41,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-07 11:17:41,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-07 11:17:41,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 629 transitions, 12266 flow. Second operand has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 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) [2024-11-07 11:17:41,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:17:41,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-07 11:17:41,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:17:47,569 INFO L124 PetriNetUnfolderBase]: 8635/16387 cut-off events. [2024-11-07 11:17:47,570 INFO L125 PetriNetUnfolderBase]: For 209127/209147 co-relation queries the response was YES. [2024-11-07 11:17:47,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101675 conditions, 16387 events. 8635/16387 cut-off events. For 209127/209147 co-relation queries the response was YES. Maximal size of possible extension queue 829. Compared 141190 event pairs, 702 based on Foata normal form. 22/15653 useless extension candidates. Maximal degree in co-relation 101566. Up to 3725 conditions per place. [2024-11-07 11:17:47,764 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 440 selfloop transitions, 445 changer transitions 170/1068 dead transitions. [2024-11-07 11:17:47,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 1068 transitions, 20233 flow [2024-11-07 11:17:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 11:17:47,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-07 11:17:47,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 540 transitions. [2024-11-07 11:17:47,767 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3708791208791209 [2024-11-07 11:17:47,767 INFO L175 Difference]: Start difference. First operand has 284 places, 629 transitions, 12266 flow. Second operand 28 states and 540 transitions. [2024-11-07 11:17:47,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 1068 transitions, 20233 flow [2024-11-07 11:17:50,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 1068 transitions, 19616 flow, removed 68 selfloop flow, removed 9 redundant places. [2024-11-07 11:17:50,514 INFO L231 Difference]: Finished difference. Result has 317 places, 684 transitions, 14326 flow [2024-11-07 11:17:50,515 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=11800, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=382, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=14326, PETRI_PLACES=317, PETRI_TRANSITIONS=684} [2024-11-07 11:17:50,515 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 272 predicate places. [2024-11-07 11:17:50,515 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 684 transitions, 14326 flow [2024-11-07 11:17:50,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 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) [2024-11-07 11:17:50,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:17:50,516 INFO L204 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] [2024-11-07 11:17:50,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 11:17:50,516 INFO L396 AbstractCegarLoop]: === Iteration 13 === 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)] === [2024-11-07 11:17:50,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:17:50,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1404745649, now seen corresponding path program 6 times [2024-11-07 11:17:50,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:17:50,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085875779] [2024-11-07 11:17:50,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:17:50,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:17:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:17:52,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:17:52,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:17:52,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085875779] [2024-11-07 11:17:52,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085875779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:17:52,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:17:52,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-07 11:17:52,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482100088] [2024-11-07 11:17:52,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:17:52,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 11:17:52,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:17:52,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 11:17:52,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-07 11:17:52,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 52 [2024-11-07 11:17:52,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 684 transitions, 14326 flow. Second operand has 16 states, 16 states have (on average 7.4375) internal successors, (119), 16 states have internal predecessors, (119), 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) [2024-11-07 11:17:52,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:17:52,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 52 [2024-11-07 11:17:52,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand