./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB --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-dev-d790fec [2024-11-27 20:13:57,423 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:13:57,522 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:13:57,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:13:57,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:13:57,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:13:57,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:13:57,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:13:57,570 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:13:57,570 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:13:57,571 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:13:57,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:13:57,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:13:57,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:13:57,573 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:13:57,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:13:57,573 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:13:57,573 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:13:57,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:13:57,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:13:57,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:13:57,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:13:57,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:13:57,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:13:57,574 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:13:57,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:13:57,575 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:13:57,575 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:13:57,575 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:13:57,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:13:57,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:13:57,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:13:57,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:13:57,576 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:13:57,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:13:57,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:13:57,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:13:57,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:13:57,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:13:57,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:13:57,577 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:13:57,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:13:57,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:13:57,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:13:57,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:13:57,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:13:57,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:13:57,578 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:13:57,578 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB 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 [2024-11-27 20:13:57,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:13:57,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:13:57,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:13:57,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:13:57,970 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:13:57,972 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-11-27 20:14:01,239 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/data/23f4d6319/29c3cffd37a64f9b8ef70c1a7a466396/FLAG9366ba45b [2024-11-27 20:14:01,868 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:14:01,869 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-11-27 20:14:01,928 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/data/23f4d6319/29c3cffd37a64f9b8ef70c1a7a466396/FLAG9366ba45b [2024-11-27 20:14:01,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/data/23f4d6319/29c3cffd37a64f9b8ef70c1a7a466396 [2024-11-27 20:14:01,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:14:01,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:14:01,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:14:01,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:14:01,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:14:01,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:14:01" (1/1) ... [2024-11-27 20:14:01,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@722f665f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:01, skipping insertion in model container [2024-11-27 20:14:01,975 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:14:01" (1/1) ... [2024-11-27 20:14:02,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:14:02,512 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-27 20:14:07,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:14:07,397 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:14:07,420 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-27 20:14:07,554 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] [2024-11-27 20:14:07,556 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] [2024-11-27 20:14:07,556 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] [2024-11-27 20:14:07,557 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] [2024-11-27 20:14:07,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2024-11-27 20:14:07,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:14:08,481 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:14:08,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08 WrapperNode [2024-11-27 20:14:08,482 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:14:08,483 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:14:08,483 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:14:08,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:14:08,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,643 INFO L138 Inliner]: procedures = 1354, calls = 1479, calls flagged for inlining = 352, calls inlined = 18, statements flattened = 398 [2024-11-27 20:14:08,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:14:08,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:14:08,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:14:08,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:14:08,654 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,659 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,683 INFO L175 MemorySlicer]: Split 52 memory accesses to 7 slices as follows [2, 1, 4, 9, 2, 31, 3]. 60 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 1, 4, 0, 2, 31, 3]. The 3 writes are split as follows [0, 0, 0, 3, 0, 0, 0]. [2024-11-27 20:14:08,683 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,684 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,700 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,705 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:14:08,731 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:14:08,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:14:08,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:14:08,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (1/1) ... [2024-11-27 20:14:08,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:14:08,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:08,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:14:08,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:14:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 20:14:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 20:14:08,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 20:14:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 20:14:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 20:14:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 20:14:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-27 20:14:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:14:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:14:08,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:14:08,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:14:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 20:14:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 20:14:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 20:14:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 20:14:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 20:14:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 20:14:08,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-27 20:14:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2024-11-27 20:14:08,815 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2024-11-27 20:14:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 20:14:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 20:14:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-27 20:14:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-27 20:14:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-27 20:14:08,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-27 20:14:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-27 20:14:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-27 20:14:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-27 20:14:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2024-11-27 20:14:08,816 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2024-11-27 20:14:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:14:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:14:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 20:14:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 20:14:08,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 20:14:08,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 20:14:08,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-27 20:14:08,818 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:14:09,320 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:14:09,322 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:14:09,979 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:14:09,979 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:14:10,732 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:14:10,732 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:14:10,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:14:10 BoogieIcfgContainer [2024-11-27 20:14:10,732 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:14:10,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:14:10,737 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:14:10,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:14:10,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:14:01" (1/3) ... [2024-11-27 20:14:10,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac3b7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:14:10, skipping insertion in model container [2024-11-27 20:14:10,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:14:08" (2/3) ... [2024-11-27 20:14:10,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac3b7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:14:10, skipping insertion in model container [2024-11-27 20:14:10,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:14:10" (3/3) ... [2024-11-27 20:14:10,747 INFO L128 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2024-11-27 20:14:10,770 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:14:10,772 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG char_generic_nvram_read_nvram_write_nvram.i that has 3 procedures, 43 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-27 20:14:10,773 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:14:10,880 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 20:14:10,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 52 transitions, 118 flow [2024-11-27 20:14:10,978 INFO L124 PetriNetUnfolderBase]: 10/50 cut-off events. [2024-11-27 20:14:10,981 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 20:14:10,990 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. [2024-11-27 20:14:10,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 52 transitions, 118 flow [2024-11-27 20:14:10,994 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 48 transitions, 105 flow [2024-11-27 20:14:11,006 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:14:11,022 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;@469a5d47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:14:11,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-27 20:14:11,052 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:14:11,053 INFO L124 PetriNetUnfolderBase]: 8/42 cut-off events. [2024-11-27 20:14:11,053 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 20:14:11,054 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:14:11,054 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:14:11,056 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)] === [2024-11-27 20:14:11,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:11,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1320373372, now seen corresponding path program 1 times [2024-11-27 20:14:11,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:11,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019717968] [2024-11-27 20:14:11,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:11,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:13,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:13,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:13,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019717968] [2024-11-27 20:14:13,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019717968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:14:13,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:14:13,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 20:14:14,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722259096] [2024-11-27 20:14:14,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:14:14,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:14:14,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:14,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:14:14,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:14:14,089 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2024-11-27 20:14:14,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 105 flow. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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) [2024-11-27 20:14:14,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:14:14,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2024-11-27 20:14:14,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:14:16,001 INFO L124 PetriNetUnfolderBase]: 1623/2722 cut-off events. [2024-11-27 20:14:16,001 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-27 20:14:16,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5285 conditions, 2722 events. 1623/2722 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 13855 event pairs, 264 based on Foata normal form. 123/2385 useless extension candidates. Maximal degree in co-relation 5202. Up to 775 conditions per place. [2024-11-27 20:14:16,031 INFO L140 encePairwiseOnDemand]: 38/52 looper letters, 132 selfloop transitions, 27 changer transitions 19/185 dead transitions. [2024-11-27 20:14:16,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 185 transitions, 750 flow [2024-11-27 20:14:16,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:14:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 20:14:16,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 281 transitions. [2024-11-27 20:14:16,049 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5403846153846154 [2024-11-27 20:14:16,050 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 105 flow. Second operand 10 states and 281 transitions. [2024-11-27 20:14:16,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 185 transitions, 750 flow [2024-11-27 20:14:16,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 185 transitions, 740 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 20:14:16,066 INFO L231 Difference]: Finished difference. Result has 58 places, 70 transitions, 274 flow [2024-11-27 20:14:16,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=274, PETRI_PLACES=58, PETRI_TRANSITIONS=70} [2024-11-27 20:14:16,074 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 13 predicate places. [2024-11-27 20:14:16,075 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 70 transitions, 274 flow [2024-11-27 20:14:16,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 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) [2024-11-27 20:14:16,076 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:14:16,076 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:14:16,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:14:16,077 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 20:14:16,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:16,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1925362263, now seen corresponding path program 1 times [2024-11-27 20:14:16,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:16,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469809855] [2024-11-27 20:14:16,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:16,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:16,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:16,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:16,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:16,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469809855] [2024-11-27 20:14:16,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469809855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:14:16,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:14:16,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:14:16,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280972908] [2024-11-27 20:14:16,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:14:16,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:14:16,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:16,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:14:16,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:14:16,980 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2024-11-27 20:14:16,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 70 transitions, 274 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-27 20:14:16,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:14:16,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2024-11-27 20:14:16,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:14:18,109 INFO L124 PetriNetUnfolderBase]: 2292/3779 cut-off events. [2024-11-27 20:14:18,112 INFO L125 PetriNetUnfolderBase]: For 1794/1794 co-relation queries the response was YES. [2024-11-27 20:14:18,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9499 conditions, 3779 events. 2292/3779 cut-off events. For 1794/1794 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 19942 event pairs, 755 based on Foata normal form. 0/3375 useless extension candidates. Maximal degree in co-relation 9148. Up to 1747 conditions per place. [2024-11-27 20:14:18,142 INFO L140 encePairwiseOnDemand]: 42/52 looper letters, 119 selfloop transitions, 30 changer transitions 67/226 dead transitions. [2024-11-27 20:14:18,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 226 transitions, 1393 flow [2024-11-27 20:14:18,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:14:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-27 20:14:18,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 209 transitions. [2024-11-27 20:14:18,147 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5024038461538461 [2024-11-27 20:14:18,147 INFO L175 Difference]: Start difference. First operand has 58 places, 70 transitions, 274 flow. Second operand 8 states and 209 transitions. [2024-11-27 20:14:18,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 226 transitions, 1393 flow [2024-11-27 20:14:18,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 226 transitions, 1393 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 20:14:18,192 INFO L231 Difference]: Finished difference. Result has 71 places, 84 transitions, 475 flow [2024-11-27 20:14:18,192 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=475, PETRI_PLACES=71, PETRI_TRANSITIONS=84} [2024-11-27 20:14:18,194 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 26 predicate places. [2024-11-27 20:14:18,194 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 84 transitions, 475 flow [2024-11-27 20:14:18,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-27 20:14:18,195 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:14:18,195 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:14:18,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:14:18,195 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 20:14:18,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:18,197 INFO L85 PathProgramCache]: Analyzing trace with hash -883250049, now seen corresponding path program 1 times [2024-11-27 20:14:18,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:18,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270555977] [2024-11-27 20:14:18,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:18,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:19,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:19,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270555977] [2024-11-27 20:14:19,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270555977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:19,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526364847] [2024-11-27 20:14:19,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:19,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:19,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:14:19,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:14:19,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:14:20,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:20,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:14:20,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:14:21,060 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 34 treesize of output 22 [2024-11-27 20:14:21,142 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 [2024-11-27 20:14:21,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:21,224 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:14:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 20:14:21,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526364847] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 20:14:21,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:14:21,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 11] total 20 [2024-11-27 20:14:21,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161436254] [2024-11-27 20:14:21,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:14:21,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:14:21,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:21,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:14:21,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:14:21,403 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2024-11-27 20:14:21,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 84 transitions, 475 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) [2024-11-27 20:14:21,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:14:21,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2024-11-27 20:14:21,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:14:22,419 INFO L124 PetriNetUnfolderBase]: 1731/3044 cut-off events. [2024-11-27 20:14:22,419 INFO L125 PetriNetUnfolderBase]: For 2976/2976 co-relation queries the response was YES. [2024-11-27 20:14:22,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9232 conditions, 3044 events. 1731/3044 cut-off events. For 2976/2976 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 16996 event pairs, 598 based on Foata normal form. 52/2869 useless extension candidates. Maximal degree in co-relation 9105. Up to 1348 conditions per place. [2024-11-27 20:14:22,442 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 90 selfloop transitions, 27 changer transitions 68/195 dead transitions. [2024-11-27 20:14:22,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 195 transitions, 1321 flow [2024-11-27 20:14:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:14:22,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 20:14:22,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2024-11-27 20:14:22,448 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-27 20:14:22,448 INFO L175 Difference]: Start difference. First operand has 71 places, 84 transitions, 475 flow. Second operand 7 states and 195 transitions. [2024-11-27 20:14:22,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 195 transitions, 1321 flow [2024-11-27 20:14:22,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 195 transitions, 1319 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-27 20:14:22,488 INFO L231 Difference]: Finished difference. Result has 80 places, 77 transitions, 562 flow [2024-11-27 20:14:22,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=562, PETRI_PLACES=80, PETRI_TRANSITIONS=77} [2024-11-27 20:14:22,491 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 35 predicate places. [2024-11-27 20:14:22,491 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 77 transitions, 562 flow [2024-11-27 20:14:22,492 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) [2024-11-27 20:14:22,492 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:14:22,492 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:14:22,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:14:22,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe27886f-7e1a-4d60-9404-1eb5cf271826/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:14:22,697 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 20:14:22,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:22,700 INFO L85 PathProgramCache]: Analyzing trace with hash -534412882, now seen corresponding path program 1 times [2024-11-27 20:14:22,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:22,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054739218] [2024-11-27 20:14:22,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:22,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:26,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:26,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:26,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054739218] [2024-11-27 20:14:26,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054739218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:14:26,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:14:26,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:14:26,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781762391] [2024-11-27 20:14:26,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:14:26,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:14:26,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:26,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:14:26,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:14:26,986 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-27 20:14:26,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 77 transitions, 562 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:14:26,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:14:26,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-27 20:14:26,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:14:33,476 INFO L124 PetriNetUnfolderBase]: 4720/8342 cut-off events. [2024-11-27 20:14:33,477 INFO L125 PetriNetUnfolderBase]: For 17023/17023 co-relation queries the response was YES. [2024-11-27 20:14:33,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29229 conditions, 8342 events. 4720/8342 cut-off events. For 17023/17023 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 59311 event pairs, 231 based on Foata normal form. 18/7696 useless extension candidates. Maximal degree in co-relation 29025. Up to 1637 conditions per place. [2024-11-27 20:14:33,542 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 255 selfloop transitions, 97 changer transitions 159/518 dead transitions. [2024-11-27 20:14:33,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 518 transitions, 4319 flow [2024-11-27 20:14:33,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 20:14:33,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-27 20:14:33,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 542 transitions. [2024-11-27 20:14:33,545 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4342948717948718 [2024-11-27 20:14:33,545 INFO L175 Difference]: Start difference. First operand has 80 places, 77 transitions, 562 flow. Second operand 24 states and 542 transitions. [2024-11-27 20:14:33,545 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 518 transitions, 4319 flow [2024-11-27 20:14:33,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 518 transitions, 4233 flow, removed 33 selfloop flow, removed 3 redundant places. [2024-11-27 20:14:33,748 INFO L231 Difference]: Finished difference. Result has 117 places, 166 transitions, 1790 flow [2024-11-27 20:14:33,749 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1790, PETRI_PLACES=117, PETRI_TRANSITIONS=166} [2024-11-27 20:14:33,749 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 72 predicate places. [2024-11-27 20:14:33,750 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 166 transitions, 1790 flow [2024-11-27 20:14:33,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:14:33,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:14:33,753 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:14:33,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:14:33,753 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)] === [2024-11-27 20:14:33,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:33,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1138073104, now seen corresponding path program 2 times [2024-11-27 20:14:33,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:33,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734129020] [2024-11-27 20:14:33,754 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:14:33,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:33,964 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:14:33,964 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:36,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:36,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:36,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734129020] [2024-11-27 20:14:36,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734129020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:14:36,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:14:36,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:14:36,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757683456] [2024-11-27 20:14:36,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:14:36,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:14:36,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:36,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:14:36,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:14:36,967 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-27 20:14:36,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 166 transitions, 1790 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:14:36,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:14:36,967 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-27 20:14:36,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:14:42,062 INFO L124 PetriNetUnfolderBase]: 5733/10480 cut-off events. [2024-11-27 20:14:42,062 INFO L125 PetriNetUnfolderBase]: For 52473/52477 co-relation queries the response was YES. [2024-11-27 20:14:42,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46310 conditions, 10480 events. 5733/10480 cut-off events. For 52473/52477 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 80237 event pairs, 320 based on Foata normal form. 36/9666 useless extension candidates. Maximal degree in co-relation 45916. Up to 2027 conditions per place. [2024-11-27 20:14:42,158 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 201 selfloop transitions, 208 changer transitions 179/595 dead transitions. [2024-11-27 20:14:42,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 595 transitions, 6717 flow [2024-11-27 20:14:42,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-27 20:14:42,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-27 20:14:42,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 540 transitions. [2024-11-27 20:14:42,162 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3708791208791209 [2024-11-27 20:14:42,163 INFO L175 Difference]: Start difference. First operand has 117 places, 166 transitions, 1790 flow. Second operand 28 states and 540 transitions. [2024-11-27 20:14:42,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 595 transitions, 6717 flow [2024-11-27 20:14:42,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 595 transitions, 6645 flow, removed 36 selfloop flow, removed 3 redundant places. [2024-11-27 20:14:42,642 INFO L231 Difference]: Finished difference. Result has 155 places, 277 transitions, 3982 flow [2024-11-27 20:14:42,643 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=1780, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=3982, PETRI_PLACES=155, PETRI_TRANSITIONS=277} [2024-11-27 20:14:42,644 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 110 predicate places. [2024-11-27 20:14:42,644 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 277 transitions, 3982 flow [2024-11-27 20:14:42,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:14:42,648 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:14:42,648 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:14:42,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:14:42,648 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)] === [2024-11-27 20:14:42,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:42,649 INFO L85 PathProgramCache]: Analyzing trace with hash -227881152, now seen corresponding path program 1 times [2024-11-27 20:14:42,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:42,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464143557] [2024-11-27 20:14:42,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:14:42,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:14:45,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:45,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:45,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464143557] [2024-11-27 20:14:45,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464143557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:14:45,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:14:45,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:14:45,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905572255] [2024-11-27 20:14:45,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:14:45,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:14:45,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:45,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:14:45,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:14:45,671 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-27 20:14:45,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 277 transitions, 3982 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:14:45,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:14:45,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-27 20:14:45,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:14:52,929 INFO L124 PetriNetUnfolderBase]: 5572/10087 cut-off events. [2024-11-27 20:14:52,929 INFO L125 PetriNetUnfolderBase]: For 80672/80694 co-relation queries the response was YES. [2024-11-27 20:14:53,020 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50983 conditions, 10087 events. 5572/10087 cut-off events. For 80672/80694 co-relation queries the response was YES. Maximal size of possible extension queue 465. Compared 75816 event pairs, 337 based on Foata normal form. 43/9209 useless extension candidates. Maximal degree in co-relation 50736. Up to 2830 conditions per place. [2024-11-27 20:14:53,054 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 309 selfloop transitions, 254 changer transitions 192/767 dead transitions. [2024-11-27 20:14:53,054 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 767 transitions, 11432 flow [2024-11-27 20:14:53,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-27 20:14:53,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2024-11-27 20:14:53,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 509 transitions. [2024-11-27 20:14:53,057 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3375331564986737 [2024-11-27 20:14:53,057 INFO L175 Difference]: Start difference. First operand has 155 places, 277 transitions, 3982 flow. Second operand 29 states and 509 transitions. [2024-11-27 20:14:53,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 767 transitions, 11432 flow [2024-11-27 20:14:53,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 767 transitions, 10438 flow, removed 299 selfloop flow, removed 13 redundant places. [2024-11-27 20:14:53,909 INFO L231 Difference]: Finished difference. Result has 181 places, 425 transitions, 6607 flow [2024-11-27 20:14:53,909 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=3524, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=6607, PETRI_PLACES=181, PETRI_TRANSITIONS=425} [2024-11-27 20:14:53,910 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 136 predicate places. [2024-11-27 20:14:53,910 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 425 transitions, 6607 flow [2024-11-27 20:14:53,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:14:53,911 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:14:53,911 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:14:53,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:14:53,911 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)] === [2024-11-27 20:14:53,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:14:53,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1081538928, now seen corresponding path program 3 times [2024-11-27 20:14:53,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:14:53,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002758851] [2024-11-27 20:14:53,912 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:14:53,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:14:54,019 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 20:14:54,019 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:14:56,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:14:56,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:14:56,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002758851] [2024-11-27 20:14:56,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002758851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:14:56,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:14:56,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 20:14:56,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327566407] [2024-11-27 20:14:56,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:14:56,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:14:56,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:14:56,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:14:56,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:14:56,414 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-27 20:14:56,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 425 transitions, 6607 flow. Second operand has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 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) [2024-11-27 20:14:56,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:14:56,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-27 20:14:56,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:15:03,921 INFO L124 PetriNetUnfolderBase]: 5689/10327 cut-off events. [2024-11-27 20:15:03,922 INFO L125 PetriNetUnfolderBase]: For 84891/84891 co-relation queries the response was YES. [2024-11-27 20:15:03,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53263 conditions, 10327 events. 5689/10327 cut-off events. For 84891/84891 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 78251 event pairs, 385 based on Foata normal form. 12/9319 useless extension candidates. Maximal degree in co-relation 52740. Up to 2001 conditions per place. [2024-11-27 20:15:04,015 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 351 selfloop transitions, 418 changer transitions 93/872 dead transitions. [2024-11-27 20:15:04,016 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 872 transitions, 12787 flow [2024-11-27 20:15:04,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-27 20:15:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2024-11-27 20:15:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 703 transitions. [2024-11-27 20:15:04,019 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3557692307692308 [2024-11-27 20:15:04,019 INFO L175 Difference]: Start difference. First operand has 181 places, 425 transitions, 6607 flow. Second operand 38 states and 703 transitions. [2024-11-27 20:15:04,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 872 transitions, 12787 flow [2024-11-27 20:15:05,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 872 transitions, 12507 flow, removed 129 selfloop flow, removed 5 redundant places. [2024-11-27 20:15:05,051 INFO L231 Difference]: Finished difference. Result has 225 places, 564 transitions, 9953 flow [2024-11-27 20:15:05,051 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=6485, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=286, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=9953, PETRI_PLACES=225, PETRI_TRANSITIONS=564} [2024-11-27 20:15:05,052 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 180 predicate places. [2024-11-27 20:15:05,052 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 564 transitions, 9953 flow [2024-11-27 20:15:05,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.692307692307692) internal successors, (126), 13 states have internal predecessors, (126), 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) [2024-11-27 20:15:05,052 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:15:05,052 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:05,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:15:05,052 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 20:15:05,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:05,053 INFO L85 PathProgramCache]: Analyzing trace with hash -565539526, now seen corresponding path program 4 times [2024-11-27 20:15:05,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:05,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812211106] [2024-11-27 20:15:05,053 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:15:05,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:05,156 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:15:05,156 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:15:08,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:08,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:08,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812211106] [2024-11-27 20:15:08,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812211106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:15:08,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:15:08,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-27 20:15:08,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298671856] [2024-11-27 20:15:08,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:15:08,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:15:08,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:08,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:15:08,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:15:08,314 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 52 [2024-11-27 20:15:08,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 564 transitions, 9953 flow. Second operand has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 13 states have internal predecessors, (139), 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) [2024-11-27 20:15:08,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:15:08,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 52 [2024-11-27 20:15:08,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:15:12,559 INFO L124 PetriNetUnfolderBase]: 5475/10261 cut-off events. [2024-11-27 20:15:12,559 INFO L125 PetriNetUnfolderBase]: For 109567/109577 co-relation queries the response was YES. [2024-11-27 20:15:12,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57287 conditions, 10261 events. 5475/10261 cut-off events. For 109567/109577 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 80618 event pairs, 594 based on Foata normal form. 54/9327 useless extension candidates. Maximal degree in co-relation 56965. Up to 2882 conditions per place. [2024-11-27 20:15:12,646 INFO L140 encePairwiseOnDemand]: 35/52 looper letters, 365 selfloop transitions, 304 changer transitions 98/784 dead transitions. [2024-11-27 20:15:12,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 784 transitions, 13912 flow [2024-11-27 20:15:12,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:15:12,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-27 20:15:12,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 347 transitions. [2024-11-27 20:15:12,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4170673076923077 [2024-11-27 20:15:12,649 INFO L175 Difference]: Start difference. First operand has 225 places, 564 transitions, 9953 flow. Second operand 16 states and 347 transitions. [2024-11-27 20:15:12,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 784 transitions, 13912 flow [2024-11-27 20:15:13,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 784 transitions, 13363 flow, removed 137 selfloop flow, removed 9 redundant places. [2024-11-27 20:15:13,798 INFO L231 Difference]: Finished difference. Result has 234 places, 578 transitions, 10633 flow [2024-11-27 20:15:13,799 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=9507, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=272, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10633, PETRI_PLACES=234, PETRI_TRANSITIONS=578} [2024-11-27 20:15:13,799 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 189 predicate places. [2024-11-27 20:15:13,799 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 578 transitions, 10633 flow [2024-11-27 20:15:13,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 13 states have internal predecessors, (139), 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) [2024-11-27 20:15:13,800 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:15:13,800 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:13,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:15:13,800 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)] === [2024-11-27 20:15:13,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:13,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1979343948, now seen corresponding path program 2 times [2024-11-27 20:15:13,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:13,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734620946] [2024-11-27 20:15:13,801 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:15:13,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:13,927 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:15:13,927 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:15:17,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:17,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:17,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734620946] [2024-11-27 20:15:17,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734620946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:15:17,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:15:17,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 20:15:17,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444513555] [2024-11-27 20:15:17,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:15:17,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:15:17,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:17,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:15:17,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:15:17,868 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 52 [2024-11-27 20:15:17,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 578 transitions, 10633 flow. Second operand has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 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) [2024-11-27 20:15:17,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:15:17,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 52 [2024-11-27 20:15:17,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:15:24,661 INFO L124 PetriNetUnfolderBase]: 7798/13745 cut-off events. [2024-11-27 20:15:24,661 INFO L125 PetriNetUnfolderBase]: For 161583/161605 co-relation queries the response was YES. [2024-11-27 20:15:24,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77252 conditions, 13745 events. 7798/13745 cut-off events. For 161583/161605 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 103934 event pairs, 408 based on Foata normal form. 37/12370 useless extension candidates. Maximal degree in co-relation 76920. Up to 2707 conditions per place. [2024-11-27 20:15:24,805 INFO L140 encePairwiseOnDemand]: 30/52 looper letters, 411 selfloop transitions, 484 changer transitions 165/1070 dead transitions. [2024-11-27 20:15:24,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 1070 transitions, 19652 flow [2024-11-27 20:15:24,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-27 20:15:24,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-27 20:15:24,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 503 transitions. [2024-11-27 20:15:24,807 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.31203473945409427 [2024-11-27 20:15:24,808 INFO L175 Difference]: Start difference. First operand has 234 places, 578 transitions, 10633 flow. Second operand 31 states and 503 transitions. [2024-11-27 20:15:24,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 1070 transitions, 19652 flow [2024-11-27 20:15:26,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 1070 transitions, 19412 flow, removed 55 selfloop flow, removed 3 redundant places. [2024-11-27 20:15:26,689 INFO L231 Difference]: Finished difference. Result has 271 places, 715 transitions, 14736 flow [2024-11-27 20:15:26,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=10481, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=578, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=352, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=14736, PETRI_PLACES=271, PETRI_TRANSITIONS=715} [2024-11-27 20:15:26,690 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 226 predicate places. [2024-11-27 20:15:26,690 INFO L471 AbstractCegarLoop]: Abstraction has has 271 places, 715 transitions, 14736 flow [2024-11-27 20:15:26,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.352941176470588) internal successors, (125), 17 states have internal predecessors, (125), 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) [2024-11-27 20:15:26,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:15:26,690 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:26,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:15:26,690 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 20:15:26,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:26,691 INFO L85 PathProgramCache]: Analyzing trace with hash 615435952, now seen corresponding path program 3 times [2024-11-27 20:15:26,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:26,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505630151] [2024-11-27 20:15:26,691 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:15:26,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:26,791 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 20:15:26,791 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:15:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:29,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:29,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505630151] [2024-11-27 20:15:29,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505630151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:15:29,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:15:29,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:15:29,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916825572] [2024-11-27 20:15:29,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:15:29,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:15:29,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:29,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:15:29,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:15:29,331 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-27 20:15:29,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 715 transitions, 14736 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:29,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:15:29,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-27 20:15:29,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:15:35,457 INFO L124 PetriNetUnfolderBase]: 6865/12385 cut-off events. [2024-11-27 20:15:35,457 INFO L125 PetriNetUnfolderBase]: For 179410/179446 co-relation queries the response was YES. [2024-11-27 20:15:35,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76125 conditions, 12385 events. 6865/12385 cut-off events. For 179410/179446 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 95196 event pairs, 582 based on Foata normal form. 27/11054 useless extension candidates. Maximal degree in co-relation 75772. Up to 3058 conditions per place. [2024-11-27 20:15:35,639 INFO L140 encePairwiseOnDemand]: 34/52 looper letters, 365 selfloop transitions, 477 changer transitions 81/941 dead transitions. [2024-11-27 20:15:35,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 941 transitions, 19252 flow [2024-11-27 20:15:35,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:15:35,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-27 20:15:35,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 377 transitions. [2024-11-27 20:15:35,642 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3815789473684211 [2024-11-27 20:15:35,642 INFO L175 Difference]: Start difference. First operand has 271 places, 715 transitions, 14736 flow. Second operand 19 states and 377 transitions. [2024-11-27 20:15:35,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 941 transitions, 19252 flow [2024-11-27 20:15:37,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 941 transitions, 18842 flow, removed 124 selfloop flow, removed 8 redundant places. [2024-11-27 20:15:37,819 INFO L231 Difference]: Finished difference. Result has 287 places, 749 transitions, 16479 flow [2024-11-27 20:15:37,820 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=14376, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=443, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=16479, PETRI_PLACES=287, PETRI_TRANSITIONS=749} [2024-11-27 20:15:37,821 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 242 predicate places. [2024-11-27 20:15:37,821 INFO L471 AbstractCegarLoop]: Abstraction has has 287 places, 749 transitions, 16479 flow [2024-11-27 20:15:37,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:37,821 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:15:37,821 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:37,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:15:37,822 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 20:15:37,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:37,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1786724976, now seen corresponding path program 4 times [2024-11-27 20:15:37,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:37,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460071248] [2024-11-27 20:15:37,824 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:15:37,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:37,941 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:15:37,941 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:15:41,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:41,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:41,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460071248] [2024-11-27 20:15:41,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460071248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:15:41,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:15:41,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-27 20:15:41,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757643406] [2024-11-27 20:15:41,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:15:41,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:15:41,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:41,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:15:41,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:15:42,055 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 52 [2024-11-27 20:15:42,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 749 transitions, 16479 flow. Second operand has 17 states, 17 states have (on average 8.352941176470589) internal successors, (142), 17 states have internal predecessors, (142), 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) [2024-11-27 20:15:42,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:15:42,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 52 [2024-11-27 20:15:42,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:15:51,921 INFO L124 PetriNetUnfolderBase]: 7243/12991 cut-off events. [2024-11-27 20:15:51,921 INFO L125 PetriNetUnfolderBase]: For 210212/210214 co-relation queries the response was YES. [2024-11-27 20:15:52,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81830 conditions, 12991 events. 7243/12991 cut-off events. For 210212/210214 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 99276 event pairs, 416 based on Foata normal form. 19/11590 useless extension candidates. Maximal degree in co-relation 81454. Up to 2533 conditions per place. [2024-11-27 20:15:52,092 INFO L140 encePairwiseOnDemand]: 31/52 looper letters, 427 selfloop transitions, 564 changer transitions 66/1073 dead transitions. [2024-11-27 20:15:52,092 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 1073 transitions, 22506 flow [2024-11-27 20:15:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-27 20:15:52,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-27 20:15:52,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 560 transitions. [2024-11-27 20:15:52,094 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3167420814479638 [2024-11-27 20:15:52,094 INFO L175 Difference]: Start difference. First operand has 287 places, 749 transitions, 16479 flow. Second operand 34 states and 560 transitions. [2024-11-27 20:15:52,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 1073 transitions, 22506 flow [2024-11-27 20:15:54,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 1073 transitions, 22264 flow, removed 62 selfloop flow, removed 7 redundant places. [2024-11-27 20:15:54,510 INFO L231 Difference]: Finished difference. Result has 317 places, 817 transitions, 19284 flow [2024-11-27 20:15:54,511 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=16275, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=498, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=19284, PETRI_PLACES=317, PETRI_TRANSITIONS=817} [2024-11-27 20:15:54,511 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 272 predicate places. [2024-11-27 20:15:54,511 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 817 transitions, 19284 flow [2024-11-27 20:15:54,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.352941176470589) internal successors, (142), 17 states have internal predecessors, (142), 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) [2024-11-27 20:15:54,511 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:15:54,511 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:54,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:15:54,512 INFO L396 AbstractCegarLoop]: === Iteration 12 === 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)] === [2024-11-27 20:15:54,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:54,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1244830984, now seen corresponding path program 5 times [2024-11-27 20:15:54,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:15:54,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311753956] [2024-11-27 20:15:54,512 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:15:54,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:54,653 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:15:54,653 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:15:57,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:57,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:15:57,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311753956] [2024-11-27 20:15:57,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311753956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:15:57,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:15:57,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:15:57,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388977527] [2024-11-27 20:15:57,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:15:57,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:15:57,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:15:57,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:15:57,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:15:58,006 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-27 20:15:58,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 817 transitions, 19284 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:15:58,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:15:58,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-27 20:15:58,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:16:05,919 INFO L124 PetriNetUnfolderBase]: 8559/15398 cut-off events. [2024-11-27 20:16:05,919 INFO L125 PetriNetUnfolderBase]: For 292481/292517 co-relation queries the response was YES. [2024-11-27 20:16:06,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103795 conditions, 15398 events. 8559/15398 cut-off events. For 292481/292517 co-relation queries the response was YES. Maximal size of possible extension queue 746. Compared 122784 event pairs, 804 based on Foata normal form. 112/13747 useless extension candidates. Maximal degree in co-relation 103405. Up to 3032 conditions per place. [2024-11-27 20:16:06,139 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 550 selfloop transitions, 571 changer transitions 192/1331 dead transitions. [2024-11-27 20:16:06,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 1331 transitions, 31271 flow [2024-11-27 20:16:06,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 20:16:06,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-27 20:16:06,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 482 transitions. [2024-11-27 20:16:06,142 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38621794871794873 [2024-11-27 20:16:06,142 INFO L175 Difference]: Start difference. First operand has 317 places, 817 transitions, 19284 flow. Second operand 24 states and 482 transitions. [2024-11-27 20:16:06,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 1331 transitions, 31271 flow [2024-11-27 20:16:10,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 1331 transitions, 29532 flow, removed 163 selfloop flow, removed 19 redundant places. [2024-11-27 20:16:10,169 INFO L231 Difference]: Finished difference. Result has 337 places, 978 transitions, 24324 flow [2024-11-27 20:16:10,170 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=18059, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=817, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=394, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=24324, PETRI_PLACES=337, PETRI_TRANSITIONS=978} [2024-11-27 20:16:10,171 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 292 predicate places. [2024-11-27 20:16:10,171 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 978 transitions, 24324 flow [2024-11-27 20:16:10,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:10,171 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:16:10,171 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:16:10,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:16:10,172 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-27 20:16:10,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:10,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1243257268, now seen corresponding path program 6 times [2024-11-27 20:16:10,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:16:10,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758203016] [2024-11-27 20:16:10,173 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:16:10,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:10,275 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-27 20:16:10,275 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:16:12,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:16:12,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:16:12,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758203016] [2024-11-27 20:16:12,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758203016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:16:12,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:16:12,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:16:12,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871158277] [2024-11-27 20:16:12,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:16:12,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:16:12,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:16:12,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:16:12,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:16:12,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-27 20:16:12,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 978 transitions, 24324 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:12,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:16:12,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-27 20:16:12,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:16:20,010 INFO L124 PetriNetUnfolderBase]: 9215/16423 cut-off events. [2024-11-27 20:16:20,010 INFO L125 PetriNetUnfolderBase]: For 354603/354637 co-relation queries the response was YES. [2024-11-27 20:16:20,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114123 conditions, 16423 events. 9215/16423 cut-off events. For 354603/354637 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 131270 event pairs, 942 based on Foata normal form. 39/14402 useless extension candidates. Maximal degree in co-relation 113725. Up to 3223 conditions per place. [2024-11-27 20:16:20,239 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 565 selfloop transitions, 618 changer transitions 70/1271 dead transitions. [2024-11-27 20:16:20,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 1271 transitions, 32022 flow [2024-11-27 20:16:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:16:20,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-27 20:16:20,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 419 transitions. [2024-11-27 20:16:20,241 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4028846153846154 [2024-11-27 20:16:20,241 INFO L175 Difference]: Start difference. First operand has 337 places, 978 transitions, 24324 flow. Second operand 20 states and 419 transitions. [2024-11-27 20:16:20,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 1271 transitions, 32022 flow [2024-11-27 20:16:25,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 1271 transitions, 31653 flow, removed 83 selfloop flow, removed 13 redundant places. [2024-11-27 20:16:25,834 INFO L231 Difference]: Finished difference. Result has 349 places, 1069 transitions, 28719 flow [2024-11-27 20:16:25,835 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=24072, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=978, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=526, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=28719, PETRI_PLACES=349, PETRI_TRANSITIONS=1069} [2024-11-27 20:16:25,836 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 304 predicate places. [2024-11-27 20:16:25,836 INFO L471 AbstractCegarLoop]: Abstraction has has 349 places, 1069 transitions, 28719 flow [2024-11-27 20:16:25,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:25,836 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:16:25,836 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:16:25,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:16:25,836 INFO L396 AbstractCegarLoop]: === Iteration 14 === 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)] === [2024-11-27 20:16:25,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:25,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1042218526, now seen corresponding path program 7 times [2024-11-27 20:16:25,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:16:25,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774115306] [2024-11-27 20:16:25,837 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:16:25,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:25,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:16:28,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:16:28,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:16:28,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774115306] [2024-11-27 20:16:28,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774115306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:16:28,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:16:28,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:16:28,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927387601] [2024-11-27 20:16:28,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:16:28,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:16:28,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:16:28,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:16:28,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:16:28,118 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-27 20:16:28,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 1069 transitions, 28719 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:28,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:16:28,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-27 20:16:28,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:16:37,305 INFO L124 PetriNetUnfolderBase]: 9757/17383 cut-off events. [2024-11-27 20:16:37,305 INFO L125 PetriNetUnfolderBase]: For 424337/424361 co-relation queries the response was YES. [2024-11-27 20:16:37,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124754 conditions, 17383 events. 9757/17383 cut-off events. For 424337/424361 co-relation queries the response was YES. Maximal size of possible extension queue 1019. Compared 140657 event pairs, 1172 based on Foata normal form. 55/15178 useless extension candidates. Maximal degree in co-relation 124356. Up to 3629 conditions per place. [2024-11-27 20:16:37,590 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 704 selfloop transitions, 499 changer transitions 101/1320 dead transitions. [2024-11-27 20:16:37,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 364 places, 1320 transitions, 35660 flow [2024-11-27 20:16:37,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:16:37,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-27 20:16:37,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 368 transitions. [2024-11-27 20:16:37,592 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3724696356275304 [2024-11-27 20:16:37,592 INFO L175 Difference]: Start difference. First operand has 349 places, 1069 transitions, 28719 flow. Second operand 19 states and 368 transitions. [2024-11-27 20:16:37,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 364 places, 1320 transitions, 35660 flow [2024-11-27 20:16:44,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 1320 transitions, 35309 flow, removed 36 selfloop flow, removed 10 redundant places. [2024-11-27 20:16:44,077 INFO L231 Difference]: Finished difference. Result has 364 places, 1121 transitions, 32036 flow [2024-11-27 20:16:44,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=28429, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1069, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=415, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=32036, PETRI_PLACES=364, PETRI_TRANSITIONS=1121} [2024-11-27 20:16:44,079 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 319 predicate places. [2024-11-27 20:16:44,079 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 1121 transitions, 32036 flow [2024-11-27 20:16:44,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:44,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:16:44,079 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:16:44,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:16:44,080 INFO L396 AbstractCegarLoop]: === Iteration 15 === 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)] === [2024-11-27 20:16:44,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:16:44,081 INFO L85 PathProgramCache]: Analyzing trace with hash -957800942, now seen corresponding path program 5 times [2024-11-27 20:16:44,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:16:44,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081248859] [2024-11-27 20:16:44,081 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:16:44,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:16:44,169 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:16:44,169 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:16:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:16:46,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:16:46,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081248859] [2024-11-27 20:16:46,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081248859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:16:46,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:16:46,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:16:46,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805795552] [2024-11-27 20:16:46,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:16:46,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:16:46,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:16:46,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:16:46,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:16:46,463 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-27 20:16:46,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 1121 transitions, 32036 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:16:46,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:16:46,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-27 20:16:46,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:16:55,496 INFO L124 PetriNetUnfolderBase]: 9426/16671 cut-off events. [2024-11-27 20:16:55,497 INFO L125 PetriNetUnfolderBase]: For 457187/457193 co-relation queries the response was YES. [2024-11-27 20:16:55,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123671 conditions, 16671 events. 9426/16671 cut-off events. For 457187/457193 co-relation queries the response was YES. Maximal size of possible extension queue 1001. Compared 132239 event pairs, 1059 based on Foata normal form. 22/14468 useless extension candidates. Maximal degree in co-relation 123265. Up to 3315 conditions per place. [2024-11-27 20:16:55,753 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 640 selfloop transitions, 617 changer transitions 72/1353 dead transitions. [2024-11-27 20:16:55,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 381 places, 1353 transitions, 37593 flow [2024-11-27 20:16:55,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 20:16:55,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-27 20:16:55,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 456 transitions. [2024-11-27 20:16:55,755 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.36538461538461536 [2024-11-27 20:16:55,755 INFO L175 Difference]: Start difference. First operand has 364 places, 1121 transitions, 32036 flow. Second operand 24 states and 456 transitions. [2024-11-27 20:16:55,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 381 places, 1353 transitions, 37593 flow [2024-11-27 20:17:01,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 1353 transitions, 37307 flow, removed 55 selfloop flow, removed 8 redundant places. [2024-11-27 20:17:01,895 INFO L231 Difference]: Finished difference. Result has 385 places, 1156 transitions, 34879 flow [2024-11-27 20:17:01,896 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=31845, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=572, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=34879, PETRI_PLACES=385, PETRI_TRANSITIONS=1156} [2024-11-27 20:17:01,896 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 340 predicate places. [2024-11-27 20:17:01,896 INFO L471 AbstractCegarLoop]: Abstraction has has 385 places, 1156 transitions, 34879 flow [2024-11-27 20:17:01,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:17:01,897 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:17:01,897 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:17:01,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:17:01,897 INFO L396 AbstractCegarLoop]: === Iteration 16 === 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)] === [2024-11-27 20:17:01,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:01,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1971551446, now seen corresponding path program 6 times [2024-11-27 20:17:01,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:01,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313461024] [2024-11-27 20:17:01,898 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-27 20:17:01,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:01,974 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-27 20:17:01,974 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:17:04,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:17:04,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:04,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313461024] [2024-11-27 20:17:04,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313461024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:04,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:04,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:17:04,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450150417] [2024-11-27 20:17:04,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:04,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:17:04,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:04,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:17:04,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:17:04,531 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-27 20:17:04,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 1156 transitions, 34879 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:17:04,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:17:04,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-27 20:17:04,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:17:13,221 INFO L124 PetriNetUnfolderBase]: 9644/17023 cut-off events. [2024-11-27 20:17:13,221 INFO L125 PetriNetUnfolderBase]: For 553634/553640 co-relation queries the response was YES. [2024-11-27 20:17:13,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133028 conditions, 17023 events. 9644/17023 cut-off events. For 553634/553640 co-relation queries the response was YES. Maximal size of possible extension queue 1067. Compared 135092 event pairs, 951 based on Foata normal form. 24/14734 useless extension candidates. Maximal degree in co-relation 132612. Up to 3381 conditions per place. [2024-11-27 20:17:13,494 INFO L140 encePairwiseOnDemand]: 32/52 looper letters, 647 selfloop transitions, 694 changer transitions 44/1409 dead transitions. [2024-11-27 20:17:13,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 399 places, 1409 transitions, 42013 flow [2024-11-27 20:17:13,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:17:13,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-27 20:17:13,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 409 transitions. [2024-11-27 20:17:13,496 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39326923076923076 [2024-11-27 20:17:13,496 INFO L175 Difference]: Start difference. First operand has 385 places, 1156 transitions, 34879 flow. Second operand 20 states and 409 transitions. [2024-11-27 20:17:13,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 399 places, 1409 transitions, 42013 flow [2024-11-27 20:17:20,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 383 places, 1409 transitions, 40753 flow, removed 125 selfloop flow, removed 16 redundant places. [2024-11-27 20:17:20,338 INFO L231 Difference]: Finished difference. Result has 392 places, 1230 transitions, 38488 flow [2024-11-27 20:17:20,338 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=33766, PETRI_DIFFERENCE_MINUEND_PLACES=364, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=621, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=38488, PETRI_PLACES=392, PETRI_TRANSITIONS=1230} [2024-11-27 20:17:20,339 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 347 predicate places. [2024-11-27 20:17:20,339 INFO L471 AbstractCegarLoop]: Abstraction has has 392 places, 1230 transitions, 38488 flow [2024-11-27 20:17:20,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:17:20,339 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:17:20,339 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:17:20,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:17:20,339 INFO L396 AbstractCegarLoop]: === Iteration 17 === 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)] === [2024-11-27 20:17:20,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:17:20,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1486861842, now seen corresponding path program 7 times [2024-11-27 20:17:20,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:17:20,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17757691] [2024-11-27 20:17:20,340 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-27 20:17:20,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:17:20,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:17:22,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:17:22,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:17:22,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17757691] [2024-11-27 20:17:22,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17757691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:17:22,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:17:22,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-27 20:17:22,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923347305] [2024-11-27 20:17:22,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:17:22,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:17:22,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:17:22,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:17:22,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:17:22,511 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2024-11-27 20:17:22,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 392 places, 1230 transitions, 38488 flow. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:17:22,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:17:22,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2024-11-27 20:17:22,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:17:32,540 INFO L124 PetriNetUnfolderBase]: 9981/17552 cut-off events. [2024-11-27 20:17:32,540 INFO L125 PetriNetUnfolderBase]: For 627221/627227 co-relation queries the response was YES. [2024-11-27 20:17:32,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139711 conditions, 17552 events. 9981/17552 cut-off events. For 627221/627227 co-relation queries the response was YES. Maximal size of possible extension queue 1142. Compared 139652 event pairs, 895 based on Foata normal form. 18/15129 useless extension candidates. Maximal degree in co-relation 139298. Up to 3484 conditions per place. [2024-11-27 20:17:32,827 INFO L140 encePairwiseOnDemand]: 33/52 looper letters, 514 selfloop transitions, 880 changer transitions 46/1461 dead transitions. [2024-11-27 20:17:32,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 1461 transitions, 44689 flow [2024-11-27 20:17:32,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 20:17:32,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-27 20:17:32,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 490 transitions. [2024-11-27 20:17:32,829 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3926282051282051 [2024-11-27 20:17:32,829 INFO L175 Difference]: Start difference. First operand has 392 places, 1230 transitions, 38488 flow. Second operand 24 states and 490 transitions. [2024-11-27 20:17:32,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 1461 transitions, 44689 flow