./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 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:18:12,245 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:18:12,330 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:18:12,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:18:12,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:18:12,458 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:18:12,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:18:12,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:18:12,459 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:18:12,460 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:18:12,460 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:18:12,464 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:18:12,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:18:12,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:18:12,466 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:18:12,466 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:18:12,466 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:18:12,466 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:18:12,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:18:12,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:18:12,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:18:12,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:18:12,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:18:12,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:18:12,475 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:18:12,476 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:18:12,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:18:12,476 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:18:12,477 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:18:12,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:18:12,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:18:12,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:18:12,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:18:12,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:18:12,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:18:12,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:18:12,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:18:12,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:18:12,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:18:12,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:18:12,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:18:12,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:18:12,487 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 [2024-11-16 19:18:12,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:18:13,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:18:13,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:18:13,058 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:18:13,059 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:18:13,060 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-11-16 19:18:14,714 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:18:15,182 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:18:15,184 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-11-16 19:18:15,233 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bcaf7e70/995a2631601e47a78d40ba38d2a27709/FLAGfa491c7b0 [2024-11-16 19:18:15,248 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bcaf7e70/995a2631601e47a78d40ba38d2a27709 [2024-11-16 19:18:15,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:18:15,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:18:15,253 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:18:15,253 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:18:15,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:18:15,261 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:18:15" (1/1) ... [2024-11-16 19:18:15,262 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1af11c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:15, skipping insertion in model container [2024-11-16 19:18:15,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:18:15" (1/1) ... [2024-11-16 19:18:15,380 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:18:15,880 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-16 19:18:20,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:18:20,877 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:18:20,897 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-16 19:18:20,992 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] [2024-11-16 19:18:20,994 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] [2024-11-16 19:18:20,994 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] [2024-11-16 19:18:20,995 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] [2024-11-16 19:18:21,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2024-11-16 19:18:21,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:18:21,766 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:18:21,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21 WrapperNode [2024-11-16 19:18:21,767 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:18:21,768 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:18:21,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:18:21,769 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:18:21,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:21,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:21,962 INFO L138 Inliner]: procedures = 1354, calls = 1479, calls flagged for inlining = 352, calls inlined = 18, statements flattened = 400 [2024-11-16 19:18:21,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:18:21,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:18:21,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:18:21,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:18:21,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:21,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:21,991 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:22,029 INFO L175 MemorySlicer]: Split 52 memory accesses to 7 slices as follows [2, 9, 1, 4, 2, 3, 31]. 60 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 0, 1, 4, 2, 3, 31]. The 3 writes are split as follows [0, 3, 0, 0, 0, 0, 0]. [2024-11-16 19:18:22,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:22,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:22,053 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:22,058 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:22,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:22,079 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:22,092 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:18:22,093 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:18:22,093 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:18:22,093 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:18:22,094 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (1/1) ... [2024-11-16 19:18:22,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:18:22,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:18:22,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 19:18:22,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 19:18:22,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-16 19:18:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-16 19:18:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-16 19:18:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-16 19:18:22,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-16 19:18:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-16 19:18:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-16 19:18:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-16 19:18:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:18:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:18:22,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:18:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-16 19:18:22,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-16 19:18:22,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-16 19:18:22,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-16 19:18:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-16 19:18:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-16 19:18:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-16 19:18:22,195 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2024-11-16 19:18:22,195 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2024-11-16 19:18:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 19:18:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 19:18:22,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-16 19:18:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-16 19:18:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-16 19:18:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-16 19:18:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-16 19:18:22,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-16 19:18:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-16 19:18:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2024-11-16 19:18:22,198 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2024-11-16 19:18:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:18:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-16 19:18:22,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-16 19:18:22,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-16 19:18:22,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-16 19:18:22,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-16 19:18:22,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-16 19:18:22,201 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:18:22,635 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:18:22,637 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:18:22,804 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2024-11-16 19:18:22,804 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6543: havoc __put_user_#t~nondet1063#1; [2024-11-16 19:18:22,804 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6636: havoc nvram_read_byte_#t~nondet1081#1; [2024-11-16 19:18:22,932 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2024-11-16 19:18:22,932 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6535: havoc __get_user_#t~nondet1061#1; [2024-11-16 19:18:23,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6632: havoc nvram_get_size_#t~nondet1080#1; [2024-11-16 19:18:23,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6650: havoc printk_#t~nondet1083#1; [2024-11-16 19:18:23,189 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L6624: havoc misc_register_#t~nondet1078#1; [2024-11-16 19:18:23,191 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:18:23,191 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:18:23,732 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:18:23,732 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:18:23,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:18:23 BoogieIcfgContainer [2024-11-16 19:18:23,733 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:18:23,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:18:23,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:18:23,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:18:23,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:18:15" (1/3) ... [2024-11-16 19:18:23,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141dd79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:18:23, skipping insertion in model container [2024-11-16 19:18:23,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:18:21" (2/3) ... [2024-11-16 19:18:23,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@141dd79c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:18:23, skipping insertion in model container [2024-11-16 19:18:23,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:18:23" (3/3) ... [2024-11-16 19:18:23,742 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2024-11-16 19:18:23,759 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:18:23,760 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 19:18:23,760 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:18:23,832 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 19:18:23,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 56 transitions, 126 flow [2024-11-16 19:18:23,966 INFO L124 PetriNetUnfolderBase]: 12/54 cut-off events. [2024-11-16 19:18:23,967 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 19:18:23,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 54 events. 12/54 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 116 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 51. Up to 4 conditions per place. [2024-11-16 19:18:23,972 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 56 transitions, 126 flow [2024-11-16 19:18:23,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 52 transitions, 113 flow [2024-11-16 19:18:23,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:18:23,994 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;@5c2cf5b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:18:23,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-16 19:18:24,017 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:18:24,017 INFO L124 PetriNetUnfolderBase]: 10/45 cut-off events. [2024-11-16 19:18:24,017 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-16 19:18:24,018 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:18:24,018 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:18:24,019 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)] === [2024-11-16 19:18:24,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:18:24,025 INFO L85 PathProgramCache]: Analyzing trace with hash 996900947, now seen corresponding path program 1 times [2024-11-16 19:18:24,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:18:24,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305749131] [2024-11-16 19:18:24,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:18:24,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:18:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:18:24,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:18:24,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:18:24,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305749131] [2024-11-16 19:18:24,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305749131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:18:24,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:18:24,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:18:24,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48272620] [2024-11-16 19:18:24,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:18:24,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 19:18:24,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:18:24,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 19:18:24,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 19:18:24,562 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 56 [2024-11-16 19:18:24,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 52 transitions, 113 flow. Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2024-11-16 19:18:24,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:18:24,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 56 [2024-11-16 19:18:24,565 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:18:24,892 INFO L124 PetriNetUnfolderBase]: 699/1287 cut-off events. [2024-11-16 19:18:24,893 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-11-16 19:18:24,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2382 conditions, 1287 events. 699/1287 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6240 event pairs, 452 based on Foata normal form. 134/1277 useless extension candidates. Maximal degree in co-relation 2298. Up to 1054 conditions per place. [2024-11-16 19:18:24,909 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 36 selfloop transitions, 0 changer transitions 0/48 dead transitions. [2024-11-16 19:18:24,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 48 transitions, 177 flow [2024-11-16 19:18:24,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 19:18:24,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 19:18:24,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 68 transitions. [2024-11-16 19:18:24,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-11-16 19:18:24,924 INFO L175 Difference]: Start difference. First operand has 47 places, 52 transitions, 113 flow. Second operand 2 states and 68 transitions. [2024-11-16 19:18:24,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 48 transitions, 177 flow [2024-11-16 19:18:24,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 48 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-16 19:18:24,931 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 100 flow [2024-11-16 19:18:24,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=100, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2024-11-16 19:18:24,939 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -2 predicate places. [2024-11-16 19:18:24,940 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 100 flow [2024-11-16 19:18:24,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 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) [2024-11-16 19:18:24,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:18:24,940 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:18:24,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:18:24,941 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:18:24,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:18:24,942 INFO L85 PathProgramCache]: Analyzing trace with hash -108405052, now seen corresponding path program 1 times [2024-11-16 19:18:24,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:18:24,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037624488] [2024-11-16 19:18:24,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:18:24,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:18:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:18:25,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:18:25,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:18:25,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037624488] [2024-11-16 19:18:25,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037624488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:18:25,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:18:25,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:18:25,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056388319] [2024-11-16 19:18:25,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:18:25,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:18:25,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:18:25,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:18:25,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:18:25,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-16 19:18:25,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-11-16 19:18:25,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:18:25,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-16 19:18:25,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:18:26,534 INFO L124 PetriNetUnfolderBase]: 1146/2008 cut-off events. [2024-11-16 19:18:26,535 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-16 19:18:26,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3806 conditions, 2008 events. 1146/2008 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 9947 event pairs, 362 based on Foata normal form. 0/1826 useless extension candidates. Maximal degree in co-relation 3803. Up to 916 conditions per place. [2024-11-16 19:18:26,545 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 95 selfloop transitions, 17 changer transitions 25/147 dead transitions. [2024-11-16 19:18:26,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 147 transitions, 580 flow [2024-11-16 19:18:26,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 19:18:26,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 19:18:26,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 235 transitions. [2024-11-16 19:18:26,549 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5245535714285714 [2024-11-16 19:18:26,549 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 100 flow. Second operand 8 states and 235 transitions. [2024-11-16 19:18:26,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 147 transitions, 580 flow [2024-11-16 19:18:26,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 147 transitions, 580 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:18:26,555 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 204 flow [2024-11-16 19:18:26,555 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=204, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2024-11-16 19:18:26,556 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2024-11-16 19:18:26,556 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 204 flow [2024-11-16 19:18:26,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2024-11-16 19:18:26,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:18:26,557 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:18:26,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:18:26,557 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:18:26,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:18:26,558 INFO L85 PathProgramCache]: Analyzing trace with hash -567789166, now seen corresponding path program 1 times [2024-11-16 19:18:26,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:18:26,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621486699] [2024-11-16 19:18:26,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:18:26,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:18:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:18:27,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:18:27,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:18:27,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621486699] [2024-11-16 19:18:27,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621486699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:18:27,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:18:27,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 19:18:27,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971317538] [2024-11-16 19:18:27,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:18:27,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:18:27,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:18:27,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:18:27,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:18:27,727 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-16 19:18:27,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 204 flow. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 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) [2024-11-16 19:18:27,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:18:27,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-16 19:18:27,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:18:28,832 INFO L124 PetriNetUnfolderBase]: 1807/3217 cut-off events. [2024-11-16 19:18:28,832 INFO L125 PetriNetUnfolderBase]: For 1347/1369 co-relation queries the response was YES. [2024-11-16 19:18:28,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7619 conditions, 3217 events. 1807/3217 cut-off events. For 1347/1369 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 18652 event pairs, 297 based on Foata normal form. 22/3123 useless extension candidates. Maximal degree in co-relation 7611. Up to 921 conditions per place. [2024-11-16 19:18:28,851 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 135 selfloop transitions, 29 changer transitions 71/246 dead transitions. [2024-11-16 19:18:28,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 246 transitions, 1405 flow [2024-11-16 19:18:28,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 19:18:28,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 19:18:28,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 286 transitions. [2024-11-16 19:18:28,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5107142857142857 [2024-11-16 19:18:28,855 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 204 flow. Second operand 10 states and 286 transitions. [2024-11-16 19:18:28,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 246 transitions, 1405 flow [2024-11-16 19:18:28,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 246 transitions, 1405 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:18:28,878 INFO L231 Difference]: Finished difference. Result has 73 places, 84 transitions, 451 flow [2024-11-16 19:18:28,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=451, PETRI_PLACES=73, PETRI_TRANSITIONS=84} [2024-11-16 19:18:28,879 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 26 predicate places. [2024-11-16 19:18:28,880 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 84 transitions, 451 flow [2024-11-16 19:18:28,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 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) [2024-11-16 19:18:28,880 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:18:28,880 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:18:28,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:18:28,881 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:18:28,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:18:28,882 INFO L85 PathProgramCache]: Analyzing trace with hash 710417419, now seen corresponding path program 1 times [2024-11-16 19:18:28,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:18:28,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212908085] [2024-11-16 19:18:28,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:18:28,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:18:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:18:30,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:18:30,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:18:30,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212908085] [2024-11-16 19:18:30,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212908085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 19:18:30,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449677111] [2024-11-16 19:18:30,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:18:30,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:18:30,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:18:30,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 19:18:30,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 19:18:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:18:30,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 19:18:30,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 19:18:30,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-16 19:18:30,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 31 [2024-11-16 19:18:30,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-16 19:18:30,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 19:18:30,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449677111] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:18:30,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 19:18:30,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-16 19:18:30,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035996874] [2024-11-16 19:18:30,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:18:30,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:18:30,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:18:30,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:18:30,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-16 19:18:30,953 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 56 [2024-11-16 19:18:30,954 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 84 transitions, 451 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-11-16 19:18:30,954 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:18:30,954 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 56 [2024-11-16 19:18:30,954 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:18:31,596 INFO L124 PetriNetUnfolderBase]: 1483/2752 cut-off events. [2024-11-16 19:18:31,596 INFO L125 PetriNetUnfolderBase]: For 2616/2670 co-relation queries the response was YES. [2024-11-16 19:18:31,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8066 conditions, 2752 events. 1483/2752 cut-off events. For 2616/2670 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 16052 event pairs, 571 based on Foata normal form. 74/2776 useless extension candidates. Maximal degree in co-relation 8051. Up to 1427 conditions per place. [2024-11-16 19:18:31,616 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 64 selfloop transitions, 23 changer transitions 75/175 dead transitions. [2024-11-16 19:18:31,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 175 transitions, 1184 flow [2024-11-16 19:18:31,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:18:31,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:18:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2024-11-16 19:18:31,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49744897959183676 [2024-11-16 19:18:31,618 INFO L175 Difference]: Start difference. First operand has 73 places, 84 transitions, 451 flow. Second operand 7 states and 195 transitions. [2024-11-16 19:18:31,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 175 transitions, 1184 flow [2024-11-16 19:18:31,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 175 transitions, 1182 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-16 19:18:31,647 INFO L231 Difference]: Finished difference. Result has 81 places, 78 transitions, 521 flow [2024-11-16 19:18:31,648 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=521, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2024-11-16 19:18:31,649 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 34 predicate places. [2024-11-16 19:18:31,649 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 521 flow [2024-11-16 19:18:31,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 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) [2024-11-16 19:18:31,651 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:18:31,651 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:18:31,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 19:18:31,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 19:18:31,853 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)] === [2024-11-16 19:18:31,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:18:31,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1952681306, now seen corresponding path program 1 times [2024-11-16 19:18:31,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:18:31,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622675227] [2024-11-16 19:18:31,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:18:31,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:18:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:18:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:18:35,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:18:35,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622675227] [2024-11-16 19:18:35,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622675227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:18:35,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:18:35,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 19:18:35,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539676366] [2024-11-16 19:18:35,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:18:35,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 19:18:35,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:18:35,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 19:18:35,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2024-11-16 19:18:35,401 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 56 [2024-11-16 19:18:35,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 521 flow. Second operand has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 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) [2024-11-16 19:18:35,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:18:35,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 56 [2024-11-16 19:18:35,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:18:39,944 INFO L124 PetriNetUnfolderBase]: 4012/7564 cut-off events. [2024-11-16 19:18:39,945 INFO L125 PetriNetUnfolderBase]: For 14810/14848 co-relation queries the response was YES. [2024-11-16 19:18:39,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24525 conditions, 7564 events. 4012/7564 cut-off events. For 14810/14848 co-relation queries the response was YES. Maximal size of possible extension queue 360. Compared 56593 event pairs, 379 based on Foata normal form. 38/7596 useless extension candidates. Maximal degree in co-relation 24505. Up to 1569 conditions per place. [2024-11-16 19:18:40,000 INFO L140 encePairwiseOnDemand]: 34/56 looper letters, 287 selfloop transitions, 78 changer transitions 153/526 dead transitions. [2024-11-16 19:18:40,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 526 transitions, 4593 flow [2024-11-16 19:18:40,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-16 19:18:40,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-16 19:18:40,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 526 transitions. [2024-11-16 19:18:40,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4083850931677019 [2024-11-16 19:18:40,003 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 521 flow. Second operand 23 states and 526 transitions. [2024-11-16 19:18:40,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 526 transitions, 4593 flow [2024-11-16 19:18:40,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 526 transitions, 4359 flow, removed 62 selfloop flow, removed 5 redundant places. [2024-11-16 19:18:40,151 INFO L231 Difference]: Finished difference. Result has 111 places, 151 transitions, 1471 flow [2024-11-16 19:18:40,152 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1471, PETRI_PLACES=111, PETRI_TRANSITIONS=151} [2024-11-16 19:18:40,154 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 64 predicate places. [2024-11-16 19:18:40,154 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 151 transitions, 1471 flow [2024-11-16 19:18:40,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 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) [2024-11-16 19:18:40,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:18:40,155 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:18:40,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:18:40,155 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)] === [2024-11-16 19:18:40,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:18:40,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1774232982, now seen corresponding path program 1 times [2024-11-16 19:18:40,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:18:40,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888681638] [2024-11-16 19:18:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:18:40,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:18:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:18:43,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:18:43,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:18:43,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888681638] [2024-11-16 19:18:43,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888681638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:18:43,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:18:43,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-16 19:18:43,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858326385] [2024-11-16 19:18:43,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:18:43,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-16 19:18:43,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:18:43,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-16 19:18:43,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-16 19:18:43,969 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 56 [2024-11-16 19:18:43,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 151 transitions, 1471 flow. Second operand has 17 states, 17 states have (on average 11.235294117647058) internal successors, (191), 17 states have internal predecessors, (191), 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) [2024-11-16 19:18:43,970 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:18:43,970 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 56 [2024-11-16 19:18:43,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:18:47,797 INFO L124 PetriNetUnfolderBase]: 4223/8072 cut-off events. [2024-11-16 19:18:47,798 INFO L125 PetriNetUnfolderBase]: For 26924/27034 co-relation queries the response was YES. [2024-11-16 19:18:47,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30859 conditions, 8072 events. 4223/8072 cut-off events. For 26924/27034 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 62217 event pairs, 339 based on Foata normal form. 119/8187 useless extension candidates. Maximal degree in co-relation 30827. Up to 2218 conditions per place. [2024-11-16 19:18:47,858 INFO L140 encePairwiseOnDemand]: 35/56 looper letters, 233 selfloop transitions, 80 changer transitions 167/490 dead transitions. [2024-11-16 19:18:47,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 490 transitions, 4892 flow [2024-11-16 19:18:47,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-16 19:18:47,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-16 19:18:47,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 466 transitions. [2024-11-16 19:18:47,862 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39625850340136054 [2024-11-16 19:18:47,862 INFO L175 Difference]: Start difference. First operand has 111 places, 151 transitions, 1471 flow. Second operand 21 states and 466 transitions. [2024-11-16 19:18:47,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 490 transitions, 4892 flow [2024-11-16 19:18:48,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 490 transitions, 4761 flow, removed 41 selfloop flow, removed 4 redundant places. [2024-11-16 19:18:48,051 INFO L231 Difference]: Finished difference. Result has 135 places, 170 transitions, 1908 flow [2024-11-16 19:18:48,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=1432, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1908, PETRI_PLACES=135, PETRI_TRANSITIONS=170} [2024-11-16 19:18:48,053 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 88 predicate places. [2024-11-16 19:18:48,053 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 170 transitions, 1908 flow [2024-11-16 19:18:48,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 11.235294117647058) internal successors, (191), 17 states have internal predecessors, (191), 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) [2024-11-16 19:18:48,053 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:18:48,054 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:18:48,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 19:18:48,054 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)] === [2024-11-16 19:18:48,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:18:48,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1324902396, now seen corresponding path program 2 times [2024-11-16 19:18:48,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:18:48,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673338005] [2024-11-16 19:18:48,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:18:48,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:18:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:18:50,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:18:50,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:18:50,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673338005] [2024-11-16 19:18:50,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673338005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:18:50,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:18:50,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 19:18:50,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94910930] [2024-11-16 19:18:50,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:18:50,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 19:18:50,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:18:50,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 19:18:50,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-16 19:18:50,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 56 [2024-11-16 19:18:50,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 170 transitions, 1908 flow. Second operand has 14 states, 14 states have (on average 11.5) internal successors, (161), 14 states have internal predecessors, (161), 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) [2024-11-16 19:18:50,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:18:50,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 56 [2024-11-16 19:18:50,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:18:52,837 INFO L124 PetriNetUnfolderBase]: 4258/8374 cut-off events. [2024-11-16 19:18:52,838 INFO L125 PetriNetUnfolderBase]: For 41076/41258 co-relation queries the response was YES. [2024-11-16 19:18:52,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34890 conditions, 8374 events. 4258/8374 cut-off events. For 41076/41258 co-relation queries the response was YES. Maximal size of possible extension queue 418. Compared 66836 event pairs, 558 based on Foata normal form. 118/8476 useless extension candidates. Maximal degree in co-relation 34847. Up to 1710 conditions per place. [2024-11-16 19:18:52,897 INFO L140 encePairwiseOnDemand]: 36/56 looper letters, 236 selfloop transitions, 113 changer transitions 113/473 dead transitions. [2024-11-16 19:18:52,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 473 transitions, 5481 flow [2024-11-16 19:18:52,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-16 19:18:52,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-16 19:18:52,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 499 transitions. [2024-11-16 19:18:52,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3712797619047619 [2024-11-16 19:18:52,903 INFO L175 Difference]: Start difference. First operand has 135 places, 170 transitions, 1908 flow. Second operand 24 states and 499 transitions. [2024-11-16 19:18:52,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 473 transitions, 5481 flow [2024-11-16 19:18:53,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 473 transitions, 5200 flow, removed 36 selfloop flow, removed 11 redundant places. [2024-11-16 19:18:53,268 INFO L231 Difference]: Finished difference. Result has 158 places, 215 transitions, 2820 flow [2024-11-16 19:18:53,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=1772, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=2820, PETRI_PLACES=158, PETRI_TRANSITIONS=215} [2024-11-16 19:18:53,271 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 111 predicate places. [2024-11-16 19:18:53,272 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 215 transitions, 2820 flow [2024-11-16 19:18:53,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 14 states have internal predecessors, (161), 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) [2024-11-16 19:18:53,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:18:53,272 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:18:53,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 19:18:53,276 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:18:53,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:18:53,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1678975452, now seen corresponding path program 2 times [2024-11-16 19:18:53,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:18:53,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967672133] [2024-11-16 19:18:53,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:18:53,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:18:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:18:55,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:18:55,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:18:55,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967672133] [2024-11-16 19:18:55,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967672133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:18:55,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:18:55,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 19:18:55,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280348853] [2024-11-16 19:18:55,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:18:55,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 19:18:55,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:18:55,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 19:18:55,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-16 19:18:55,647 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 56 [2024-11-16 19:18:55,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 215 transitions, 2820 flow. Second operand has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 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) [2024-11-16 19:18:55,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:18:55,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 56 [2024-11-16 19:18:55,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:18:58,523 INFO L124 PetriNetUnfolderBase]: 4697/9254 cut-off events. [2024-11-16 19:18:58,523 INFO L125 PetriNetUnfolderBase]: For 60076/60326 co-relation queries the response was YES. [2024-11-16 19:18:58,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41936 conditions, 9254 events. 4697/9254 cut-off events. For 60076/60326 co-relation queries the response was YES. Maximal size of possible extension queue 478. Compared 76410 event pairs, 361 based on Foata normal form. 145/9381 useless extension candidates. Maximal degree in co-relation 41881. Up to 2220 conditions per place. [2024-11-16 19:18:58,617 INFO L140 encePairwiseOnDemand]: 37/56 looper letters, 291 selfloop transitions, 144 changer transitions 147/597 dead transitions. [2024-11-16 19:18:58,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 597 transitions, 7701 flow [2024-11-16 19:18:58,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-16 19:18:58,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-16 19:18:58,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 537 transitions. [2024-11-16 19:18:58,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39955357142857145 [2024-11-16 19:18:58,623 INFO L175 Difference]: Start difference. First operand has 158 places, 215 transitions, 2820 flow. Second operand 24 states and 537 transitions. [2024-11-16 19:18:58,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 597 transitions, 7701 flow [2024-11-16 19:18:59,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 597 transitions, 7373 flow, removed 72 selfloop flow, removed 9 redundant places. [2024-11-16 19:18:59,230 INFO L231 Difference]: Finished difference. Result has 183 places, 263 transitions, 3846 flow [2024-11-16 19:18:59,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=2714, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=3846, PETRI_PLACES=183, PETRI_TRANSITIONS=263} [2024-11-16 19:18:59,231 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 136 predicate places. [2024-11-16 19:18:59,231 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 263 transitions, 3846 flow [2024-11-16 19:18:59,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 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) [2024-11-16 19:18:59,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:18:59,232 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:18:59,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 19:18:59,232 INFO L396 AbstractCegarLoop]: === Iteration 9 === 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)] === [2024-11-16 19:18:59,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:18:59,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2131746270, now seen corresponding path program 3 times [2024-11-16 19:18:59,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:18:59,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392629417] [2024-11-16 19:18:59,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:18:59,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:18:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:19:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:19:01,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:19:01,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392629417] [2024-11-16 19:19:01,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392629417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:19:01,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:19:01,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 19:19:01,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813495622] [2024-11-16 19:19:01,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:19:01,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 19:19:01,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:19:01,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 19:19:01,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-16 19:19:01,280 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 56 [2024-11-16 19:19:01,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 263 transitions, 3846 flow. Second operand has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 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) [2024-11-16 19:19:01,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:19:01,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 56 [2024-11-16 19:19:01,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:19:05,456 INFO L124 PetriNetUnfolderBase]: 5443/11027 cut-off events. [2024-11-16 19:19:05,456 INFO L125 PetriNetUnfolderBase]: For 91150/91384 co-relation queries the response was YES. [2024-11-16 19:19:05,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53355 conditions, 11027 events. 5443/11027 cut-off events. For 91150/91384 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 96673 event pairs, 413 based on Foata normal form. 130/11137 useless extension candidates. Maximal degree in co-relation 53287. Up to 1895 conditions per place. [2024-11-16 19:19:05,556 INFO L140 encePairwiseOnDemand]: 38/56 looper letters, 281 selfloop transitions, 222 changer transitions 145/663 dead transitions. [2024-11-16 19:19:05,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 663 transitions, 9787 flow [2024-11-16 19:19:05,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-16 19:19:05,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-16 19:19:05,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 534 transitions. [2024-11-16 19:19:05,559 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41459627329192544 [2024-11-16 19:19:05,559 INFO L175 Difference]: Start difference. First operand has 183 places, 263 transitions, 3846 flow. Second operand 23 states and 534 transitions. [2024-11-16 19:19:05,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 663 transitions, 9787 flow [2024-11-16 19:19:06,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 663 transitions, 9175 flow, removed 163 selfloop flow, removed 11 redundant places. [2024-11-16 19:19:06,273 INFO L231 Difference]: Finished difference. Result has 203 places, 339 transitions, 5554 flow [2024-11-16 19:19:06,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=3577, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=146, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=5554, PETRI_PLACES=203, PETRI_TRANSITIONS=339} [2024-11-16 19:19:06,274 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 156 predicate places. [2024-11-16 19:19:06,274 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 339 transitions, 5554 flow [2024-11-16 19:19:06,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 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) [2024-11-16 19:19:06,274 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:19:06,275 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:19:06,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 19:19:06,275 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)] === [2024-11-16 19:19:06,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:19:06,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1849356448, now seen corresponding path program 3 times [2024-11-16 19:19:06,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:19:06,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997716036] [2024-11-16 19:19:06,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:19:06,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:19:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:19:07,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:19:07,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:19:07,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997716036] [2024-11-16 19:19:07,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997716036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:19:07,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:19:07,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-16 19:19:07,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062827140] [2024-11-16 19:19:07,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:19:07,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-16 19:19:07,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:19:07,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-16 19:19:07,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-16 19:19:08,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 56 [2024-11-16 19:19:08,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 339 transitions, 5554 flow. Second operand has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 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) [2024-11-16 19:19:08,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:19:08,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 56 [2024-11-16 19:19:08,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:19:12,729 INFO L124 PetriNetUnfolderBase]: 5807/11452 cut-off events. [2024-11-16 19:19:12,729 INFO L125 PetriNetUnfolderBase]: For 116127/116443 co-relation queries the response was YES. [2024-11-16 19:19:12,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59185 conditions, 11452 events. 5807/11452 cut-off events. For 116127/116443 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 97754 event pairs, 785 based on Foata normal form. 143/11553 useless extension candidates. Maximal degree in co-relation 59111. Up to 3561 conditions per place. [2024-11-16 19:19:12,815 INFO L140 encePairwiseOnDemand]: 34/56 looper letters, 443 selfloop transitions, 170 changer transitions 156/781 dead transitions. [2024-11-16 19:19:12,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 781 transitions, 12527 flow [2024-11-16 19:19:12,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-16 19:19:12,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-16 19:19:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 596 transitions. [2024-11-16 19:19:12,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3941798941798942 [2024-11-16 19:19:12,817 INFO L175 Difference]: Start difference. First operand has 203 places, 339 transitions, 5554 flow. Second operand 27 states and 596 transitions. [2024-11-16 19:19:12,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 781 transitions, 12527 flow [2024-11-16 19:19:13,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 781 transitions, 11912 flow, removed 164 selfloop flow, removed 4 redundant places. [2024-11-16 19:19:13,799 INFO L231 Difference]: Finished difference. Result has 243 places, 426 transitions, 7338 flow [2024-11-16 19:19:13,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=5203, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=7338, PETRI_PLACES=243, PETRI_TRANSITIONS=426} [2024-11-16 19:19:13,800 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 196 predicate places. [2024-11-16 19:19:13,800 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 426 transitions, 7338 flow [2024-11-16 19:19:13,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.25) internal successors, (180), 16 states have internal predecessors, (180), 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) [2024-11-16 19:19:13,801 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:19:13,801 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:19:13,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 19:19:13,801 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:19:13,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:19:13,802 INFO L85 PathProgramCache]: Analyzing trace with hash 106538030, now seen corresponding path program 4 times [2024-11-16 19:19:13,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:19:13,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618726266] [2024-11-16 19:19:13,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:19:13,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:19:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:19:15,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:19:15,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:19:15,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618726266] [2024-11-16 19:19:15,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618726266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:19:15,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:19:15,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 19:19:15,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608318395] [2024-11-16 19:19:15,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:19:15,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-16 19:19:15,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:19:15,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-16 19:19:15,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-16 19:19:15,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 56 [2024-11-16 19:19:15,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 426 transitions, 7338 flow. Second operand has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 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) [2024-11-16 19:19:15,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:19:15,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 56 [2024-11-16 19:19:15,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:19:19,663 INFO L124 PetriNetUnfolderBase]: 6051/12203 cut-off events. [2024-11-16 19:19:19,663 INFO L125 PetriNetUnfolderBase]: For 152042/152422 co-relation queries the response was YES. [2024-11-16 19:19:19,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67419 conditions, 12203 events. 6051/12203 cut-off events. For 152042/152422 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 108780 event pairs, 485 based on Foata normal form. 218/12392 useless extension candidates. Maximal degree in co-relation 67325. Up to 2877 conditions per place. [2024-11-16 19:19:19,778 INFO L140 encePairwiseOnDemand]: 38/56 looper letters, 393 selfloop transitions, 255 changer transitions 120/786 dead transitions. [2024-11-16 19:19:19,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 786 transitions, 14089 flow [2024-11-16 19:19:19,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-16 19:19:19,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-16 19:19:19,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 448 transitions. [2024-11-16 19:19:19,780 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4 [2024-11-16 19:19:19,780 INFO L175 Difference]: Start difference. First operand has 243 places, 426 transitions, 7338 flow. Second operand 20 states and 448 transitions. [2024-11-16 19:19:19,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 786 transitions, 14089 flow [2024-11-16 19:19:21,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 786 transitions, 13423 flow, removed 305 selfloop flow, removed 6 redundant places. [2024-11-16 19:19:21,070 INFO L231 Difference]: Finished difference. Result has 266 places, 487 transitions, 9027 flow [2024-11-16 19:19:21,071 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=7028, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=194, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=208, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=9027, PETRI_PLACES=266, PETRI_TRANSITIONS=487} [2024-11-16 19:19:21,072 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 219 predicate places. [2024-11-16 19:19:21,072 INFO L471 AbstractCegarLoop]: Abstraction has has 266 places, 487 transitions, 9027 flow [2024-11-16 19:19:21,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 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) [2024-11-16 19:19:21,072 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:19:21,072 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:19:21,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 19:19:21,072 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)] === [2024-11-16 19:19:21,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:19:21,073 INFO L85 PathProgramCache]: Analyzing trace with hash -460168834, now seen corresponding path program 4 times [2024-11-16 19:19:21,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:19:21,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559298781] [2024-11-16 19:19:21,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:19:21,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:19:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat